说明
部署Prometheus+Grafana 来监控Redis
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部署
了解了Prometheus是通过拉取的方式来保存监控数据的，可以自己写一个服务来去Redis来获取需要监控的相关指标，也可以直接用现成的exporter，如GitHub上redis_exporter，本文对Redis的监控是通过该导出器进行的。
下载&解压：
#下载 wget https://github.com/oliver006/redis_exporter/releases/download/v1.3.5/redis_exporter-v1.3.5.linux-amd64.tar.gz #解压 tar xvf redis_exporter-v1.3.5.linux-amd64.tar.gz
注意：redis_exporter 版本从 0.x to 1.x 有了很大的改变：为了使redis_exporter更紧密地遵循“编写导出器的最佳实践”，不再直接支持配置（和抓取）多个Redis实例，而是将这一任务推给了Prometheus服务器.
但如果已经按照Prometheus项目的推荐使用了导出器，并且仅scrape了一个实例（例如使用–redis.addr和–redis.password 标志），那么没有任何改变。
准备：
1）在开启redis_exporter [v1.3.5]之前，需要先配置Prometheus，按照Prometheus + Grafana 部署说明之「安装」装好Prometheus之后，修改其配置文件。本次示例是通过文件服务发现来处理的，因为监控服务的同时也要监控系统相关的指标，所以需要node_exporter和redis_exporter。文件发现机制有2种方式：exporter配置可以放到一个文件，也可以为每个实例单独配置文件。如放到一个配置文件：
① 多实例相同密码的抓取（只需要一个redis-exporter），集群信息：
3节点无从，密码 abc 192.168.163.132、133、134 -- 6379 192.168.163.132、133、134 -- 6380
1.1 exporter配置放到一个文件的相关配置：
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/nodes-instances.json
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/redis-instances.json
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
nodes-instances.json：
[
{
\"targets\": [ \"192.168.163.132:9199\", \"192.168.163.133:9199\",\"192.168.163.134:9199\"]
}
]
redis-instances.json：
[
{
\"targets\": [ \"192.168.163.132:6379\",\"192.168.163.133:6379\",\"192.168.163.134:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\"}
},
{
\"targets\": [ \"192.168.163.132:6380\",\"192.168.163.133:6380\",\"192.168.163.134:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\"}
}
]
以后如果有相关的实例集群包括主从加进来，只要修改以上2个exporter文件即可。最后开启exporter：
#各个节点执行 node-exporter： ./node_exporter --web.listen-address=:9199 #指定节点执行 redis_exporter: ./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123
1.2 exporter配置独立存放的相关配置：
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
targets/node/*.yml：
# ls -lh /etc/prometheus/targets/node/*.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test2_node_exporter.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test3_node_exporter.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test4_node_exporter.yml
# cat /etc/prometheus/targets/node/test2_node_exporter.yml
[
{
\"targets\": [\"192.168.163.132:9199\"],
\"labels\": {\"env\":\"test\",\"alias\":\"test2\"}
}
]
# cat /etc/prometheus/targets/node/test3_node_exporter.yml
[
{
\"targets\": [\"192.168.163.133:9199\"],
\"labels\": {\"env\":\"test\",\"alias\":\"test3\"}
}
]
# cat /etc/prometheus/targets/node/test4_node_exporter.yml
[
{
\"targets\": [\"192.168.163.134:9199\"],
\"labels\": {\"env\":\"test\",\"alias\":\"test4\"}
}
]
targets/redis/*.yml：
# ls -lh /etc/prometheus/targets/redis/*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test2_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test2_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test3_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/test3_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test4_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/test4_6380_redis_exporter.yml
# cat /etc/prometheus/targets/redis/test2_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.132:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test2\"}
}
]
# cat /etc/prometheus/targets/redis/test3_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.133:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test3\"}
}
]
# cat /etc/prometheus/targets/redis/test4_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.134:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test4\"}
}
]
# cat /etc/prometheus/targets/redis/test2_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.132:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test2\"}
}
]
# cat /etc/prometheus/targets/redis/test3_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.133:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test3\"}
}
]
# cat /etc/prometheus/targets/redis/test4_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.134:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test4\"}
}
]
以后如果有相关的实例集群加进来包括主从，只要新增2类exporter文件即可。最后开启exporter：
#各个节点执行 node-exporter： ./node_exporter --web.listen-address=:9199 #指定节点执行 redis_exporter: ./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123
以上2种通过文件服务发现的方法，推荐第2个。因为新增的文件有问题也不影响服务，修改文件可能会引发问题；并且也可以为各个节点打需要的labels。
最后配置Grafana，效果：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200418151825988-1639689149.png\")
JSON Model：
{
\"annotations\": {
\"list\": [
{
\"builtIn\": 1,
\"datasource\": \"-- Grafana --\",
\"enable\": true,
\"hide\": true,
\"iconColor\": \"rgba(0, 211, 255, 1)\",
\"name\": \"Annotations & Alerts\",
\"type\": \"dashboard\"
}
]
},
\"editable\": true,
\"gnetId\": null,
\"graphTooltip\": 0,
\"id\": 13,
\"iteration\": 1587194136640,
\"links\": [],
\"panels\": [
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群个数\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 0,
\"y\": 0
},
\"id\": 8,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(count(redis_up{cluster=~\\\"$cluster\\\"}>0) by (cluster))\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 5,
\"y\": 0
},
\"id\": 4,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群活跃节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 4,
\"x\": 10,
\"y\": 0
},
\"id\": 6,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"}>0)\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群活跃节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorPrefix\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"主节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 14,
\"y\": 0
},
\"id\": 10,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"master\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"主节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"从节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 19,
\"y\": 0
},
\"id\": 12,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"slave\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"从节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redus Cluster OPS指标\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 16,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"ceil(sum(rate(redis_commands_processed_total{cluster=~\\\"$cluster\\\",instance=~\\\"$master\\\"}[$interval])) by (cluster))\",
\"interval\": \"5s\",
\"legendFormat\": \"{{cluster}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis Cluster OPS\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redis 内存使用大小值\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 18,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_memory_used_bytes{instance=~\\\"$instance\\\"} \",
\"interval\": \"5s\",
\"legendFormat\": \"{{instance}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis 内存使用大小\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"bytes\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
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②：不同密码多实例抓取，因为使用的是 >1.x 的redis_exporter [v1.3.5]，不支持多实例。因为一个export只能指定一个密码，如果想进行多实例不同密码抓取的话，所以需要在Prometheus配置多个redis_exporter，集群信息为：
3节点无从 192.168.163.132、133、134 -- 6379 密码 abc 192.168.163.132、133、134 -- 6380 密码 cba
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter_A\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/A*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
- job_name: \'redis_exporter_B\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/B*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9124
targets/redis/*.yml：
# ls -lh /etc/prometheus/targets/redis/A*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest2_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest3_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest4_6379_redis_exporter.yml
# ls -lh /etc/prometheus/targets/redis/B*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Btest2_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/Btest3_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/Btest4_6380_redis_exporter.yml
# cat /etc/prometheus/targets/redis/Atest2_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.132:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test2\"}
}
]
# cat /etc/prometheus/targets/redis/Atest3_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.133:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test3\"}
}
]
# cat /etc/prometheus/targets/redis/Atest4_6379_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.134:6379\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_one\",\"alias\":\"test4\"}
}
]
# cat /etc/prometheus/targets/redis/Btest2_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.132:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test2\"}
}
]
# cat /etc/prometheus/targets/redis/Btest3_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.133:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test3\"}
}
]
# cat /etc/prometheus/targets/redis/Btest4_6380_redis_exporter.yml
[
{
\"targets\": [ \"192.168.163.134:6380\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test_two\",\"alias\":\"test4\"}
}
]
以后如果有相关的实例集群包括主从加进来，只要新增2类exporter文件即可。最后开启exporter：
#指定节点执行 redis_exporter: ./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123 #指定节点执行 redis_exporter: ./redis_exporter -redis-only-metrics -redis.password cba -web.listen-address=:9124
最后配置Grafana，效果和①一样，唯一的区别就是②开多个exporter。这样会导致一个问题：每次增加不同密码的节点都会修改Prometheus配置文件，既不安全也不方便。可以通过下面方法来实现多实例不同密码抓取。按照编写导出器的最佳实践，需要像nodes_exporter一样在不同实例的主机上安装和开启redis_exporter，即为每个redis instance开启一个exporter。集群信息为：
集群1：密码 cc M: 192.168.163.132:15389 192.168.163.133:15389 192.168.163.134:15389 S: 192.168.163.132:15489 192.168.163.133:15489 192.168.163.134:15489 集群2：密码abc M: 192.168.163.132:6379 192.168.163.133:6379 192.168.163.134:6379 S: 192.168.163.132:6381 192.168.163.133:6381 192.168.163.134:6381
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/redis*.yml
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- action: labeldrop
regex: __meta_filepath
targets/redis/redis*.yml
root@test2:/etc/prometheus/targets/redis# ls -lh redis*
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:02 redis_test2_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test2_15489_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:02 redis_test3_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test3_15489_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:03 redis_test4_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test4_15489_exporter.yml
root@test2:/etc/prometheus/targets/redis# cat redis_test2_15389_exporter.yml
[
{
\"targets\": [\"192.168.163.132:9121\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test2\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test3_15389_exporter.yml
[
{
\"targets\": [\"192.168.163.133:9121\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test3\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test4_15389_exporter.yml
[
{
\"targets\": [\"192.168.163.134:9121\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test4\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test2_15489_exporter.yml
[
{
\"targets\": [\"192.168.163.132:9122\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test2\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test3_15489_exporter.yml
[
{
\"targets\": [\"192.168.163.133:9122\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test3\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test4_15489_exporter.yml
[
{
\"targets\": [\"192.168.163.134:9122\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"test\",\"alias\":\"test4\"}
}
]
通过文件服务发现，实现动态添加节点（exporter），一个Redis实例一个exporter，这里只开集群1的exporter，即在test2、test3、test4上各开启2个exporter，共6个exporter对应6个Redis实例，配置完成之后，可以直接到各个监控主机上启动redis_exporter：
test2: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15389 -redis.password cc -web.listen-address=:9121 ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15489 -redis.password cc -web.listen-address=:9122 test3: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:15389 -redis.password cc -web.listen-address=:9121 ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:15489 -redis.password cc -web.listen-address=:9122 test4: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:15389 -redis.password cc -web.listen-address=:9121 ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:15489 -redis.password cc -web.listen-address=:9122
最后配置Grafana，效果：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200418221425783-1746840226.png\")
JSON Model：
{
\"annotations\": {
\"list\": [
{
\"builtIn\": 1,
\"datasource\": \"-- Grafana --\",
\"enable\": true,
\"hide\": true,
\"iconColor\": \"rgba(0, 211, 255, 1)\",
\"name\": \"Annotations & Alerts\",
\"type\": \"dashboard\"
}
]
},
\"editable\": true,
\"gnetId\": null,
\"graphTooltip\": 0,
\"id\": 13,
\"iteration\": 1587219062782,
\"links\": [],
\"panels\": [
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群个数\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 0,
\"y\": 0
},
\"id\": 8,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(count(redis_up{cluster=~\\\"$cluster\\\"}>0) by (cluster))\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 5,
\"y\": 0
},
\"id\": 4,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群活跃节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 4,
\"x\": 10,
\"y\": 0
},
\"id\": 6,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"}>0)\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群活跃节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorPrefix\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"主节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 14,
\"y\": 0
},
\"id\": 10,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"master\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"主节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"从节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 19,
\"y\": 0
},
\"id\": 12,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"slave\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"从节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redus Cluster OPS指标\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 16,
\"legend\": {
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\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"ceil(sum(rate(redis_commands_processed_total{cluster=~\\\"$cluster\\\",instance=~\\\"$master\\\"}[$interval])) by (cluster))\",
\"interval\": \"5s\",
\"legendFormat\": \"{{cluster}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis Cluster OPS\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redis 内存使用大小值\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 18,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_memory_used_bytes{instance=~\\\"$instance\\\"} \",
\"interval\": \"5s\",
\"legendFormat\": \"{{instance}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis 内存使用大小\",
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\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
}
]
},
\"time\": {
\"from\": \"now-5m\",
\"to\": \"now\"
},
\"timepicker\": {
\"refresh_intervals\": [
\"5s\",
\"10s\",
\"30s\",
\"1m\",
\"5m\",
\"15m\",
\"30m\",
\"1h\",
\"2h\",
\"1d\"
]
},
\"timezone\": \"\",
\"title\": \"Redis_Cluster_V1.35\",
\"uid\": \"5FfBHG3Zz\",
\"variables\": {
\"list\": []
},
\"version\": 4
}
③：旧版本redis_exporter [v0.34.1]支持多实例不同密码，集群信息：
集群1：密码 cc M: 192.168.163.132:15389 192.168.163.133:15389 192.168.163.134:15389 S: 192.168.163.132:15489 192.168.163.133:15489 192.168.163.134:15489 集群2：密码abc M: 192.168.163.132:6379 192.168.163.133:6379 192.168.163.134:6379 S: 192.168.163.132:6381 192.168.163.133:6381 192.168.163.134:6381
prometheus.yml：
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/nodes-instances.json
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
static_configs:
- targets: [\'192.168.163.132:9128\']
redis_exporter直接用命令行启动：对应的参数有-redis.addr、-redis.alias、-redis.password：
# ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15389,192.168.163.133:15389,192.168.163.134:15389,192.168.163.132:15489,192.168.163.133:15489,192.168.163.134:15489,192.168.163.132:6379,192.168.163.133:6379,192.168.163.134:6379,192.168.163.132:6381,192.168.163.133:6381,192.168.163.134:6381 -redis.alias test,test,test,test,test,test,test123,test123,test123,test123,test123,test123 -redis.password cc,cc,cc,cc,cc,cc,abc,abc,abc,abc,abc,abc -web.listen-address :9128
INFO[0000] Redis Metrics Exporter v0.34.1 build date: 2019-05-09-15:42:21 sha1: 1c168d07eff09e64efb18600a35664d6666926e6 Go: go1.12.5
INFO[0000] Providing metrics at :9128/metrics
INFO[0000] Connecting to redis hosts: []string{\"192.168.163.132:15389\", \"192.168.163.133:15389\", \"192.168.163.134:15389\", \"192.168.163.132:15489\", \"192.168.163.133:15489\", \"192.168.163.134:15489\", \"192.168.163.132:6379\", \"192.168.163.133:6379\", \"192.168.163.134:6379\", \"192.168.163.132:6381\", \"192.168.163.133:6381\", \"192.168.163.134:6381\"}
INFO[0000] Using alias: []string{\"test\", \"test\", \"test\", \"test\", \"test\", \"test\", \"test123\", \"test123\", \"test123\", \"test123\", \"test123\", \"test123\"}
注意：参数、密码和实例的他们是一一对应的。最后配置Grafana，效果：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200418223807226-733633803.png\")
JSON Model：
{
\"annotations\": {
\"list\": [
{
\"builtIn\": 1,
\"datasource\": \"-- Grafana --\",
\"enable\": true,
\"hide\": true,
\"iconColor\": \"rgba(0, 211, 255, 1)\",
\"name\": \"Annotations & Alerts\",
\"type\": \"dashboard\"
}
]
},
\"editable\": true,
\"gnetId\": null,
\"graphTooltip\": 0,
\"id\": 14,
\"iteration\": 1587221739977,
\"links\": [],
\"panels\": [
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群个数\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 0,
\"y\": 0
},
\"id\": 8,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(count(redis_up{alias=~\\\"$cluster\\\"}>0) by (alias))\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 5,
\"y\": 0
},
\"id\": 4,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{alias=~\\\"$cluster\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群活跃节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 4,
\"x\": 10,
\"y\": 0
},
\"id\": 6,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{alias=~\\\"$cluster\\\"}>0)\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群活跃节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorPrefix\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"主节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 14,
\"y\": 0
},
\"id\": 10,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{alias=~\\\"$cluster\\\", role=\\\"master\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"主节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"从节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 19,
\"y\": 0
},
\"id\": 12,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{alias=~\\\"$cluster\\\", role=\\\"slave\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"从节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redus Cluster OPS指标\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 16,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"ceil(sum(rate(redis_commands_processed_total{alias=~\\\"$cluster\\\",addr=~\\\"$master\\\"}[$interval])) by (alias))\",
\"interval\": \"5s\",
\"legendFormat\": \"{{alias}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis Cluster OPS\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redis 内存使用大小值\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 3
},
\"hiddenSeries\": false,
\"id\": 18,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_memory_used_bytes{addr=~\\\"$instance\\\"} \",
\"interval\": \"5s\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis 内存使用大小\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"bytes\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redis Server CPU使用率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 11
},
\"hiddenSeries\": false,
\"id\": 14,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"100* (rate(redis_used_cpu_sys{addr=~\\\"$instance\\\"}[$interval]) + rate(redis_used_cpu_user{addr=~\\\"$instance\\\"}[$interval]))\",
\"interval\": \"5s\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis CPU使用率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"percent\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redis 内存使用率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 11
},
\"hiddenSeries\": false,
\"id\": 20,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"(redis_memory_used_bytes{addr=~\\\"$instance\\\"} / redis_config_maxmemory{addr=~\\\"$instance\\\"}) * 100\",
\"interval\": \"5s\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis 内存使用率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"percent\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点系统CPU使用率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 19
},
\"hiddenSeries\": false,
\"id\": 24,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"topk(3,clamp_max((avg by (hostname,mode) ((clamp_max(rate(node_cpu_seconds_total{hostname=~\\\"$host\\\",mode!=\\\"idle\\\"}[$interval]),1)) or (clamp_max(irate(node_cpu_seconds_total{hostname=~\\\"$host\\\",mode!=\\\"idle\\\"}[5m]),1)) ))*100,100))\",
\"hide\": true,
\"interval\": \"\",
\"legendFormat\": \"{{mode}}\",
\"refId\": \"A\"
},
{
\"expr\": \"1 - avg by (hostip)(rate(node_cpu_seconds_total{hostip=~\\\"$host\\\", mode=\\\"idle\\\"}[$interval]))\",
\"interval\": \"\",
\"legendFormat\": \"{{hostip}}\",
\"refId\": \"B\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"系统CPU使用率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"percentunit\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点系统物理内存利用率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 19
},
\"hiddenSeries\": false,
\"id\": 30,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"((node_memory_MemTotal_bytes{hostip=~\\\"$host\\\"} - (node_memory_MemAvailable_bytes{hostip=~\\\"$host\\\"} or (node_memory_MemFree_bytes{hostip=~\\\"$host\\\"} + node_memory_Buffers_bytes{hostip=~\\\"$host\\\"} + node_memory_Cached_bytes{hostip=~\\\"$host\\\"})))*100 / node_memory_MemTotal_bytes{hostip=~\\\"$host\\\"})\",
\"hide\": false,
\"interval\": \"\",
\"legendFormat\": \"{{hostip}}\",
\"refId\": \"B\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"系统物理内存利用率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"percent\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": true,
\"cacheTimeout\": null,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点系统磁盘使用率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 27
},
\"hiddenSeries\": false,
\"id\": 32,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": false,
\"linewidth\": 1,
\"links\": [],
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pluginVersion\": \"6.7.2\",
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"topk(10,max((1 - node_filesystem_avail_bytes{hostip=~\\\"$host\\\", fstype!~\\\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\\\"} / node_filesystem_size_bytes{hostip=~\\\"$host\\\", fstype!~\\\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\\\"})*100) by (hostip) > 0)\",
\"interval\": \"\",
\"legendFormat\": \"{{hostip}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"系统磁盘使用率\",
\"tooltip\": {
\"shared\": false,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"series\",
\"name\": null,
\"show\": true,
\"values\": [
\"current\"
]
},
\"yaxes\": [
{
\"format\": \"percent\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点以及集群的 KEYS 总数\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 27
},
\"hiddenSeries\": false,
\"id\": 22,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"sum(redis_db_keys{addr=~\\\"$master\\\"}) by (addr,db)\",
\"interval\": \"\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
},
{
\"expr\": \"sum(redis_db_keys{addr=~\\\"$master\\\"}) by (alias)\",
\"interval\": \"\",
\"legendFormat\": \"{{alias}}_total\",
\"refId\": \"B\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"KEYS 总数\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点活跃连接数\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 35
},
\"hiddenSeries\": false,
\"id\": 26,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_connected_clients{addr=~\\\"$instance\\\"}\",
\"interval\": \"\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"活跃连接数\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点内存碎片率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 35
},
\"hiddenSeries\": false,
\"id\": 28,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_mem_fragmentation_ratio{addr=~\\\"$instance\\\"}\",
\"interval\": \"\",
\"legendFormat\": \"{{addr}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"内存碎片率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点 的负载\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 43
},
\"hiddenSeries\": false,
\"id\": 34,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"node_load1{hostip=~\\\"$host\\\"}\",
\"interval\": \"\",
\"legendFormat\": \"{{hostip}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"负载（Load）\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
}
],
\"refresh\": \"5s\",
\"schemaVersion\": 22,
\"style\": \"dark\",
\"tags\": [],
\"templating\": {
\"list\": [
{
\"auto\": true,
\"auto_count\": 100,
\"auto_min\": \"1s\",
\"current\": {
\"selected\": true,
\"text\": \"5s\",
\"value\": \"5s\"
},
\"hide\": 0,
\"label\": \"interval\",
\"name\": \"interval\",
\"options\": [
{
\"selected\": false,
\"text\": \"auto\",
\"value\": \"$__auto_interval_interval\"
},
{
\"selected\": true,
\"text\": \"5s\",
\"value\": \"5s\"
},
{
\"selected\": false,
\"text\": \"30s\",
\"value\": \"30s\"
},
{
\"selected\": false,
\"text\": \"1m\",
\"value\": \"1m\"
},
{
\"selected\": false,
\"text\": \"10m\",
\"value\": \"10m\"
},
{
\"selected\": false,
\"text\": \"30m\",
\"value\": \"30m\"
},
{
\"selected\": false,
\"text\": \"1h\",
\"value\": \"1h\"
},
{
\"selected\": false,
\"text\": \"6h\",
\"value\": \"6h\"
},
{
\"selected\": false,
\"text\": \"12h\",
\"value\": \"12h\"
},
{
\"selected\": false,
\"text\": \"1d\",
\"value\": \"1d\"
}
],
\"query\": \"5s,30s,1m,10m,30m,1h,6h,12h,1d\",
\"refresh\": 2,
\"skipUrlSync\": false,
\"type\": \"interval\"
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_up,alias)\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Cluster\",
\"multi\": true,
\"name\": \"cluster\",
\"options\": [],
\"query\": \"label_values(redis_up,alias)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\"},role)\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Role\",
\"multi\": true,
\"name\": \"role\",
\"options\": [],
\"query\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\"},role)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\",role=~\\\"$role\\\"},addr)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"instance\",
\"multi\": true,
\"name\": \"instance\",
\"options\": [],
\"query\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\",role=~\\\"$role\\\"},addr)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\",role=\\\"master\\\"},addr)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"master\",
\"multi\": true,
\"name\": \"master\",
\"options\": [],
\"query\": \"label_values(redis_instance_info{alias=~\\\"$cluster\\\",role=\\\"master\\\"},addr)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_up{alias=~\\\"$cluster\\\"}, addr)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"host\",
\"multi\": true,
\"name\": \"host\",
\"options\": [],
\"query\": \"label_values(redis_up{alias=~\\\"$cluster\\\"}, addr)\",
\"refresh\": 1,
\"regex\": \"(.*):.*\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
}
]
},
\"time\": {
\"from\": \"now-5m\",
\"to\": \"now\"
},
\"timepicker\": {
\"refresh_intervals\": [
\"5s\",
\"10s\",
\"30s\",
\"1m\",
\"5m\",
\"15m\",
\"30m\",
\"1h\",
\"2h\",
\"1d\"
]
},
\"timezone\": \"\",
\"title\": \"Redis_Cluster_V0.34\",
\"uid\": \"5FfBHG3Zz1\",
\"variables\": {
\"list\": []
},
\"version\": 1
}
3）导入dashboard（763）到Grafana，展示的监控图：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200419000931566-140711010.png\")
需要注意的是，监控面板上看到的是exporter的IP和端口，看不到Redis实例的端口，如果是一台机器部署一台Redis实例，则可以直接使用主机名。或则修改相应的labels来自定义需求。除了修改labels之外，还可以自定义数据源，如使用MySQL作为新数据源。
5）MySQL做为数据源定制模板
添加数据源：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200417231208844-527555052.png\")
表结构：
CREATE TABLE `cluster_info` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT \'主键\', `cluster_type` varchar(64) DEFAULT NULL COMMENT \'集群类型\', `cluster_name` varchar(64) DEFAULT NULL COMMENT \'集群名\', `hostname` varchar(64) DEFAULT NULL COMMENT \'主机名\', `host_ip` varchar(64) DEFAULT NULL COMMENT \'IP\', `port` int(11) DEFAULT NULL COMMENT \'服务端口\', `role` varchar(64) DEFAULT NULL COMMENT \'服务角色\', `comments` varchar(500) DEFAULT NULL COMMENT \'集群描述\', `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT \'创建时间\', `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT \'更新时间\', PRIMARY KEY (`id`), KEY `idx_create_time` (`create_time`), KEY `idx_update_time` (`update_time`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT=\'集群信息\'
表记录：
mysql> select * from cluster_info; +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+ | id | cluster_type | cluster_name | hostname | host_ip | port | role | comments | create_time | update_time | +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+ | 1 | Redis_Cluster | testX | test2 | 192.168.163.132 | 6380 | master | 测试集群 | 2020-04-08 19:22:56 | 2020-04-09 11:19:13 | | 2 | Redis_Cluster | testX | test3 | 192.168.163.133 | 6380 | master | 测试集群 | 2020-04-08 19:24:29 | 2020-04-09 11:19:16 | | 3 | Redis_Cluster | testX | test4 | 192.168.163.134 | 6380 | master | 测试集群 | 2020-04-08 19:24:33 | 2020-04-09 11:19:16 | +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+
5.1 使用编写导出器的最佳实践：
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/Xredis*.yml
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- action: labeldrop
regex: __meta_filepath
targets/node/node*.yml
root@test2:/etc/prometheus/targets/node# ls -lh node*.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 19 01:24 node_test2_exporter.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 18 16:18 node_test3_exporter.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 18 16:18 node_test4_exporter.yml
root@test2:/etc/prometheus/targets/node# cat node_test2_exporter.yml
[
{
\"targets\": [\"192.168.163.132:9199\"],
\"labels\": {\"env\":\"test\",\"instance\":\"test2\"}
}
]
root@test2:/etc/prometheus/targets/node# cat node_test3_exporter.yml
[
{
\"targets\": [\"192.168.163.133:9199\"],
\"labels\": {\"env\":\"test\",\"instance\":\"test3\"}
}
]
root@test2:/etc/prometheus/targets/node# cat node_test4_exporter.yml
[
{
\"targets\": [\"192.168.163.134:9199\"],
\"labels\": {\"env\":\"test\",\"instance\":\"test4\"}
}
]
targets/redis/Xredis*.yml
root@test2:/etc/prometheus/targets/redis# ls -lh Xredis*.yml
-rw-r--r-- 1 root root 118 4月 19 00:34 Xredis_test2_6380_exporter.yml
-rw-r--r-- 1 root root 118 4月 19 00:36 Xredis_test3_6380_exporter.yml
-rw-r--r-- 1 root root 118 4月 19 00:35 Xredis_test4_6380_exporter.yml
root@test2:/etc/prometheus/targets/redis# cat Xredis_test2_6380_exporter.yml
[
{
\"targets\": [\"192.168.163.132:9123\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"testX\",\"alias\":\"test2\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat Xredis_test3_6380_exporter.yml
[
{
\"targets\": [\"192.168.163.133:9123\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"testX\",\"alias\":\"test3\"}
}
]
root@test2:/etc/prometheus/targets/redis# cat Xredis_test4_6380_exporter.yml
[
{
\"targets\": [\"192.168.163.134:9123\"],
\"labels\": {\"env\":\"test\",\"cluster\":\"testX\",\"alias\":\"test4\"}
}
]
配置完成之后，可以直接到各个监控主机上启动redis_exporter：
test2: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:6380 -redis.password cba -web.listen-address=:9123 test3: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:6380 -redis.password cba -web.listen-address=:9123 test4: ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:6380 -redis.password cba -web.listen-address=:9123
最后配置Grafana，效果：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200419013757420-1239998565.png\")
JSON Model：
{
\"annotations\": {
\"list\": [
{
\"builtIn\": 1,
\"datasource\": \"-- Grafana --\",
\"enable\": true,
\"hide\": true,
\"iconColor\": \"rgba(0, 211, 255, 1)\",
\"name\": \"Annotations & Alerts\",
\"type\": \"dashboard\"
}
]
},
\"editable\": true,
\"gnetId\": null,
\"graphTooltip\": 0,
\"id\": 13,
\"iteration\": 1587231669738,
\"links\": [],
\"panels\": [
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群个数\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 0,
\"y\": 0
},
\"id\": 8,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(count(redis_up{cluster=~\\\"$cluster\\\"}) by (cluster))\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 5,
\"y\": 0
},
\"id\": 4,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群活跃节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 4,
\"x\": 10,
\"y\": 0
},
\"id\": 6,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
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}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
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\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{cluster=~\\\"$cluster\\\"}>0)\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群活跃节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
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\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorPrefix\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"主节点数量\",
\"format\": \"none\",
\"gauge\": {
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\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
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\"w\": 5,
\"x\": 14,
\"y\": 0
},
\"id\": 10,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
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},
{
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}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
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\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
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\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"master\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"主节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"从节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 19,
\"y\": 0
},
\"id\": 12,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
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}
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\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
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\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_instance_info{cluster=~\\\"$cluster\\\", role=\\\"slave\\\"})\",
\"interval\": \"\",
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}
],
\"thresholds\": \"\",
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\"timeShift\": null,
\"title\": \"从节点个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
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{
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\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"Redus Cluster OPS指标\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
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\"w\": 12,
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\"y\": 3
},
\"hiddenSeries\": false,
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\"lines\": true,
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\"nullPointMode\": \"null\",
\"options\": {
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},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
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\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
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\"legendFormat\": \"{{cluster}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"Redis Cluster OPS\",
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\"value_type\": \"individual\"
},
\"type\": \"graph\",
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\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
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\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
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},
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{
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},
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\"points\": false,
\"renderer\": \"flot\",
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\"stack\": false,
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\"targets\": [
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\"points\": false,
\"renderer\": \"flot\",
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\"stack\": false,
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\"targets\": [
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\"points\": false,
\"renderer\": \"flot\",
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\"stack\": false,
\"steppedLine\": false,
\"targets\": [
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}
],
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},
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},
{
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\"datasource\": null,
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},
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},
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\"pluginVersion\": \"6.7.2\",
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"topk(10,max((1 - node_filesystem_avail_bytes{instance=~\\\"$host\\\", fstype!~\\\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\\\"} / node_filesystem_size_bytes{instance=~\\\"$host\\\", fstype!~\\\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\\\"})*100) by (instance) > 0)\",
\"interval\": \"\",
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}
],
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},
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\"buckets\": null,
\"mode\": \"series\",
\"name\": null,
\"show\": true,
\"values\": [
\"current\"
]
},
\"yaxes\": [
{
\"format\": \"percent\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点以及集群的 KEYS 总数\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 27
},
\"hiddenSeries\": false,
\"id\": 22,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"sum(redis_db_keys{alias=~\\\"$master\\\"}) by (alias,db)\",
\"interval\": \"\",
\"legendFormat\": \"{{alias}}\",
\"refId\": \"A\"
},
{
\"expr\": \"sum(redis_db_keys{alias=~\\\"$master\\\"}) by (cluster)\",
\"hide\": false,
\"interval\": \"\",
\"legendFormat\": \"{{cluster}}_total\",
\"refId\": \"B\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"KEYS 总数\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"集群的活跃连接数\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 35
},
\"hiddenSeries\": false,
\"id\": 26,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"sum(redis_connected_clients{alias=~\\\"$master\\\"}) by (cluster)\",
\"interval\": \"\",
\"legendFormat\": \"{{cluster}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"活跃连接数\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点内存碎片率\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 12,
\"y\": 35
},
\"hiddenSeries\": false,
\"id\": 28,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"redis_mem_fragmentation_ratio{alias=~\\\"$host\\\"}\",
\"interval\": \"\",
\"legendFormat\": \"{{alias}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"内存碎片率\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
},
{
\"aliasColors\": {},
\"bars\": false,
\"dashLength\": 10,
\"dashes\": false,
\"datasource\": null,
\"description\": \"各个节点 的负载\",
\"fill\": 1,
\"fillGradient\": 0,
\"gridPos\": {
\"h\": 8,
\"w\": 12,
\"x\": 0,
\"y\": 43
},
\"hiddenSeries\": false,
\"id\": 34,
\"legend\": {
\"avg\": false,
\"current\": false,
\"max\": false,
\"min\": false,
\"show\": true,
\"total\": false,
\"values\": false
},
\"lines\": true,
\"linewidth\": 1,
\"nullPointMode\": \"null\",
\"options\": {
\"dataLinks\": []
},
\"percentage\": false,
\"pointradius\": 2,
\"points\": false,
\"renderer\": \"flot\",
\"seriesOverrides\": [],
\"spaceLength\": 10,
\"stack\": false,
\"steppedLine\": false,
\"targets\": [
{
\"expr\": \"node_load1{instance=~\\\"$host\\\"}\",
\"interval\": \"\",
\"legendFormat\": \"{{instance}}\",
\"refId\": \"A\"
}
],
\"thresholds\": [],
\"timeFrom\": null,
\"timeRegions\": [],
\"timeShift\": null,
\"title\": \"负载（Load）\",
\"tooltip\": {
\"shared\": true,
\"sort\": 0,
\"value_type\": \"individual\"
},
\"type\": \"graph\",
\"xaxis\": {
\"buckets\": null,
\"mode\": \"time\",
\"name\": null,
\"show\": true,
\"values\": []
},
\"yaxes\": [
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
},
{
\"format\": \"short\",
\"label\": null,
\"logBase\": 1,
\"max\": null,
\"min\": null,
\"show\": true
}
],
\"yaxis\": {
\"align\": false,
\"alignLevel\": null
}
}
],
\"refresh\": \"5s\",
\"schemaVersion\": 22,
\"style\": \"dark\",
\"tags\": [],
\"templating\": {
\"list\": [
{
\"auto\": true,
\"auto_count\": 100,
\"auto_min\": \"1s\",
\"current\": {
\"selected\": false,
\"text\": \"5s\",
\"value\": \"5s\"
},
\"hide\": 0,
\"label\": \"interval\",
\"name\": \"interval\",
\"options\": [
{
\"selected\": false,
\"text\": \"auto\",
\"value\": \"$__auto_interval_interval\"
},
{
\"selected\": true,
\"text\": \"5s\",
\"value\": \"5s\"
},
{
\"selected\": false,
\"text\": \"30s\",
\"value\": \"30s\"
},
{
\"selected\": false,
\"text\": \"1m\",
\"value\": \"1m\"
},
{
\"selected\": false,
\"text\": \"10m\",
\"value\": \"10m\"
},
{
\"selected\": false,
\"text\": \"30m\",
\"value\": \"30m\"
},
{
\"selected\": false,
\"text\": \"1h\",
\"value\": \"1h\"
},
{
\"selected\": false,
\"text\": \"6h\",
\"value\": \"6h\"
},
{
\"selected\": false,
\"text\": \"12h\",
\"value\": \"12h\"
},
{
\"selected\": false,
\"text\": \"1d\",
\"value\": \"1d\"
}
],
\"query\": \"5s,30s,1m,10m,30m,1h,6h,12h,1d\",
\"refresh\": 2,
\"skipUrlSync\": false,
\"type\": \"interval\"
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select cluster_name from cluster_info where cluster_type = \\\"Redis_Cluster\\\"\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Cluster\",
\"multi\": true,
\"name\": \"cluster\",
\"options\": [],
\"query\": \"select cluster_name from cluster_info where cluster_type = \\\"Redis_Cluster\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select role from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Role\",
\"multi\": true,
\"name\": \"role\",
\"options\": [],
\"query\": \"select role from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"host\",
\"multi\": true,
\"name\": \"host\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"master\\\"\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"master\",
\"multi\": true,
\"name\": \"master\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"master\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"slave\\\"\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"slave\",
\"multi\": true,
\"name\": \"slave\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"slave\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"Prometheus\",
\"definition\": \"label_values(redis_instance_info{cluster=~\\\"$cluster\\\",role=~\\\"$role\\\"},instance)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"instance\",
\"multi\": true,
\"name\": \"instance\",
\"options\": [],
\"query\": \"label_values(redis_instance_info{cluster=~\\\"$cluster\\\",role=~\\\"$role\\\"},instance)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
}
]
},
\"time\": {
\"from\": \"now-5m\",
\"to\": \"now\"
},
\"timepicker\": {
\"refresh_intervals\": [
\"5s\",
\"10s\",
\"30s\",
\"1m\",
\"5m\",
\"15m\",
\"30m\",
\"1h\",
\"2h\",
\"1d\"
]
},
\"timezone\": \"\",
\"title\": \"Redis_Cluster_V1.35\",
\"uid\": \"5FfBHG3Zz\",
\"variables\": {
\"list\": []
},
\"version\": 9
}
5.2 使用老版本的exporter：
prometheus.yml
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.132:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
static_configs:
- targets: [\'192.168.163.132:9128\']
配置完成之后，可以直接到监控主机上启动redis_exporter：
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:6380,192.168.163.133:6380,192.168.163.134:6380 -redis.alias test2,test3,test4 -redis.password cba,cba,cba -web.listen-address :9128
最后配置Grafana，效果：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200419023159779-2106595841.png\")
JSON Model：
{
\"annotations\": {
\"list\": [
{
\"builtIn\": 1,
\"datasource\": \"-- Grafana --\",
\"enable\": true,
\"hide\": true,
\"iconColor\": \"rgba(0, 211, 255, 1)\",
\"name\": \"Annotations & Alerts\",
\"type\": \"dashboard\"
}
]
},
\"editable\": true,
\"gnetId\": null,
\"graphTooltip\": 0,
\"id\": 13,
\"iteration\": 1587234344797,
\"links\": [],
\"panels\": [
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": \"MySQL\",
\"description\": \"集群个数\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 0,
\"y\": 0
},
\"id\": 8,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"format\": \"table\",
\"group\": [],
\"metricColumn\": \"none\",
\"rawQuery\": true,
\"rawSql\": \"select count(distinct cluster_name) from cluster_info where cluster_type = \'Redis_Cluster\'\",
\"refId\": \"A\",
\"select\": [
[
{
\"params\": [
\"id\"
],
\"type\": \"column\"
}
]
],
\"table\": \"cluster_info\",
\"timeColumn\": \"create_time\",
\"timeColumnType\": \"timestamp\",
\"where\": [
{
\"name\": \"$__timeFilter\",
\"params\": [],
\"type\": \"macro\"
}
]
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群个数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 5,
\"y\": 0
},
\"id\": 4,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{alias=~\\\"$all_host\\\"})\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"集群活跃节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 4,
\"x\": 10,
\"y\": 0
},
\"id\": 6,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
\"ymin\": null
},
\"tableColumn\": \"\",
\"targets\": [
{
\"expr\": \"count(redis_up{alias=~\\\"$all_host\\\"}>0)\",
\"interval\": \"\",
\"legendFormat\": \"\",
\"refId\": \"A\"
}
],
\"thresholds\": \"\",
\"timeFrom\": null,
\"timeShift\": null,
\"title\": \"集群活跃节点数\",
\"type\": \"singlestat\",
\"valueFontSize\": \"100%\",
\"valueMaps\": [
{
\"op\": \"=\",
\"text\": \"N/A\",
\"value\": \"null\"
}
],
\"valueName\": \"current\"
},
{
\"cacheTimeout\": null,
\"colorBackground\": false,
\"colorPrefix\": false,
\"colorValue\": true,
\"colors\": [
\"#299c46\",
\"rgba(237, 129, 40, 0.89)\",
\"#d44a3a\"
],
\"datasource\": null,
\"description\": \"主节点数量\",
\"format\": \"none\",
\"gauge\": {
\"maxValue\": 100,
\"minValue\": 0,
\"show\": false,
\"thresholdLabels\": false,
\"thresholdMarkers\": true
},
\"gridPos\": {
\"h\": 3,
\"w\": 5,
\"x\": 14,
\"y\": 0
},
\"id\": 10,
\"interval\": null,
\"links\": [],
\"mappingType\": 1,
\"mappingTypes\": [
{
\"name\": \"value to text\",
\"value\": 1
},
{
\"name\": \"range to text\",
\"value\": 2
}
],
\"maxDataPoints\": 100,
\"nullPointMode\": \"connected\",
\"nullText\": null,
\"postfix\": \"\",
\"postfixFontSize\": \"50%\",
\"prefix\": \"\",
\"prefixFontSize\": \"50%\",
\"rangeMaps\": [
{
\"from\": \"null\",
\"text\": \"N/A\",
\"to\": \"null\"
}
],
\"sparkline\": {
\"fillColor\": \"rgba(31, 118, 189, 0.18)\",
\"full\": false,
\"lineColor\": \"rgb(31, 120, 193)\",
\"show\": false,
\"ymax\": null,
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\"label\": \"interval\",
\"name\": \"interval\",
\"options\": [
{
\"selected\": false,
\"text\": \"auto\",
\"value\": \"$__auto_interval_interval\"
},
{
\"selected\": true,
\"text\": \"5s\",
\"value\": \"5s\"
},
{
\"selected\": false,
\"text\": \"30s\",
\"value\": \"30s\"
},
{
\"selected\": false,
\"text\": \"1m\",
\"value\": \"1m\"
},
{
\"selected\": false,
\"text\": \"10m\",
\"value\": \"10m\"
},
{
\"selected\": false,
\"text\": \"30m\",
\"value\": \"30m\"
},
{
\"selected\": false,
\"text\": \"1h\",
\"value\": \"1h\"
},
{
\"selected\": false,
\"text\": \"6h\",
\"value\": \"6h\"
},
{
\"selected\": false,
\"text\": \"12h\",
\"value\": \"12h\"
},
{
\"selected\": false,
\"text\": \"1d\",
\"value\": \"1d\"
}
],
\"query\": \"5s,30s,1m,10m,30m,1h,6h,12h,1d\",
\"refresh\": 2,
\"skipUrlSync\": false,
\"type\": \"interval\"
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select cluster_name from cluster_info where cluster_type = \\\"Redis_Cluster\\\"\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Cluster\",
\"multi\": true,
\"name\": \"cluster\",
\"options\": [],
\"query\": \"select cluster_name from cluster_info where cluster_type = \\\"Redis_Cluster\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select role from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"hide\": 0,
\"includeAll\": true,
\"index\": -1,
\"label\": \"Role\",
\"multi\": true,
\"name\": \"role\",
\"options\": [],
\"query\": \"select role from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role in ($role)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"host\",
\"multi\": true,
\"name\": \"host\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role in ($role)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"master\\\"\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"master\",
\"multi\": true,
\"name\": \"master\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"master\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"slave\\\"\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"slave\",
\"multi\": true,
\"name\": \"slave\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster) and role=\\\"slave\\\"\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
},
{
\"allValue\": null,
\"current\": {
\"text\": \"All\",
\"value\": [
\"$__all\"
]
},
\"datasource\": \"MySQL\",
\"definition\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"hide\": 2,
\"includeAll\": true,
\"index\": -1,
\"label\": \"all_host\",
\"multi\": true,
\"name\": \"all_host\",
\"options\": [],
\"query\": \"select hostname from cluster_info where cluster_type = \\\"Redis_Cluster\\\" and cluster_name in ($cluster)\",
\"refresh\": 1,
\"regex\": \"\",
\"skipUrlSync\": false,
\"sort\": 0,
\"tagValuesQuery\": \"\",
\"tags\": [],
\"tagsQuery\": \"\",
\"type\": \"query\",
\"useTags\": false
}
]
},
\"time\": {
\"from\": \"now-5m\",
\"to\": \"now\"
},
\"timepicker\": {
\"refresh_intervals\": [
\"5s\",
\"10s\",
\"30s\",
\"1m\",
\"5m\",
\"15m\",
\"30m\",
\"1h\",
\"2h\",
\"1d\"
]
},
\"timezone\": \"\",
\"title\": \"Redis_Cluster_V1.35\",
\"uid\": \"5FfBHG3Zz\",
\"variables\": {
\"list\": []
},
\"version\": 14
}
从上面的图中看到，其中OPS的Legend展示的是表达式，按照老版本的的redis_exporter，不能自定义label，虽然监控不同密码多实例比较方便，但作图的时候不好看。目前想到二种方法：
1. 使用推荐的一个实例一个exporter。
2. 在老版本redis_exporter基础上，对指标进行重新定义和打label，此时需要自己编写一个exporter来对指标进行重写。
如：老版本的redis_exporter部署在137这台机器上，并且端口为9128：使用python的prometheus_client模块编写一个服务（5000）来抓取数据进行label修改：
#!/bin/env python
# -*- encoding: utf-8 -*-
import requests
import re
import json
import MySQLdb
import prometheus_client
from prometheus_client import Gauge,Counter
from flask import Response, Flask
app = Flask(__name__)
def redis_cluster_metadata():
conn = MySQLdb.connect(host=\"192.168.163.133\", port=3306, user=\"dba\", passwd=\"dba\", db=\'test\', charset=\'utf8\')
query = \'\'\'
SELECT
concat( host_ip, \':\', PORT ) ip,
cluster_name
FROM
cluster_info
WHERE
cluster_type = \'Redis_Cluster\'
\'\'\'
cursor = conn.cursor()
cursor.execute(query)
conn.commit()
result = cursor.fetchall()
cursor.close()
return result
def gauge_init(pair):
result = {}
for k, v in pair.items():
name = v
documentation = v
label = (\"alias\", \"addr\", \"cluster\")
gauge = Gauge(name, documentation, label)
result[v] = gauge
return result
def redis_cluster_metric(pair):
url = \"http://192.168.163.137:9128/metrics\"
pat = re.compile(r\'addr=\"(.*)\",alias=\"(.*)\"\')
request_data = requests.get(url, timeout=3)
metrics_info = request_data.text
metrics_dict = {}
for metrics in metrics_info.split(\'\\n\'):
for metric in pair:
if metrics.find(metric) == 0:
value = metrics.split(\' \')[1]
pat_info = pat.search(metrics)
ip = pat_info.group(1)
alias = pat_info.group(2)
metrics_dict.setdefault(ip, {})
metrics_dict[ip][\'alias\'] = alias
metrics_dict[ip][metrics_pair[metric]] = value
return metrics_dict
@app.route(\"/metrics\")
def prometheus_for_redis():
redis_cluster_info = redis_cluster_metadata()
metadata_dict = {}
for redis_cluster_item in redis_cluster_info:
ip,clustername = redis_cluster_item
metadata_dict[ip] = clustername
metrics_dict = redis_cluster_metric(metrics_pair)
for k,v in metrics_dict.items():
for _k,_v in metadata_dict.items():
if k == _k:
metrics_dict[k][\'cluster\'] = _v
print metadata_dict
print metrics_dict
result = \'\'
for metric_name, gauge in gauge_dict.items():
for k, v in metrics_dict.items():
if k in metadata_dict.keys():
gauge.labels(alias=v[\'alias\'], addr=k, cluster=v[\'cluster\']).set(v[metric_name])
result = result + prometheus_client.generate_latest(gauge).decode()
return Response(result, mimetype=\"text/plain\")
if __name__ == \"__main__\":
metrics_pair = {\'redis_commands_processed_total\': \'cluster_redis_commands_processed_total\',\'redis_cluster_size\':\'cluster_redis_cluster_size\'}
gauge_dict = gauge_init(metrics_pair)
app.run(host=\"0.0.0.0\")
大致的思想是：对原始的redis_exporter的指标进行过滤，拿出需要的指标进行label指定，最后作为一个导出器服务启动（5000），并配置到prometheus.yml里：
global:
scrape_interval: 5s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 5s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - \"first_rules.yml\"
# - \"second_rules.yml\"
scrape_configs:
- job_name: \'prometheus\'
static_configs:
- targets: [\'192.168.163.137:9099\']
- job_name: \'node_exporter\'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: [\'__address__\']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: \'redis_exporter\'
scrape_interval: 1s
static_configs:
- targets: [\'192.168.163.137:9128\']
- job_name: \'redisx_exporter\'
metrics_path: /redisx_cluster/metrics
scrape_interval: 1s
static_configs:
- targets: [\'192.168.163.137:5000\']
/Users/jinyizhou [18:51:25] ~$ curl http://0.0.0.0:5000/metrics
# HELP cluster_redis_commands_processed_total cluster_redis_commands_processed_total
# TYPE cluster_redis_commands_processed_total gauge
cluster_redis_commands_processed_total{addr=\"192.168.163.137:6380\",alias=\"test2\",cluster=\"testX\"} 1796512.0
cluster_redis_commands_processed_total{addr=\"192.168.163.133:6380\",alias=\"test3\",cluster=\"testX\"} 1592838.0
cluster_redis_commands_processed_total{addr=\"192.168.163.134:6380\",alias=\"test4\",cluster=\"testX\"} 1592053.0
最后OPS的Legend显示为：
![\"\"](\"https://img2020.cnblogs.com/blog/163084/202004/163084-20200423201741861-888290651.png\")
小结：
上面的给出的这些参考指标以及监控项可以按照需要自行进行调整，如果需要做类似redis_exporter的导出器，可以连接Redis各个节点进行采样。具体的一些方法可以参考client_python。