{"id":1478,"date":"2020-06-04T19:20:51","date_gmt":"2020-06-04T11:20:51","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1478"},"modified":"2020-06-04T19:20:51","modified_gmt":"2020-06-04T11:20:51","slug":"tidb%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1478","title":{"rendered":"TiDB\u4ecb\u7ecd"},"content":{"rendered":"<div>\n<h1>TiDB \u7b80\u4ecb<\/h1>\n<p>TiDB \u662f PingCAP \u516c\u53f8\u8bbe\u8ba1\u7684\u5f00\u6e90\u5206\u5e03\u5f0f HTAP (Hybrid Transactional and Analytical Processing) \u6570\u636e\u5e93\uff0c\u7ed3\u5408\u4e86\u4f20\u7edf\u7684 RDBMS \u548c NoSQL \u7684\u6700\u4f73\u7279\u6027\u3002TiDB \u517c\u5bb9 MySQL\uff0c\u652f\u6301\u65e0\u9650\u7684\u6c34\u5e73\u6269\u5c55\uff0c\u5177\u5907\u5f3a\u4e00\u81f4\u6027\u548c\u9ad8\u53ef\u7528\u6027\u3002TiDB \u7684\u76ee\u6807\u662f\u4e3a OLTP (Online Transactional Processing) \u548c OLAP (Online Analytical Processing) \u573a\u666f\u63d0\u4f9b\u4e00\u7ad9\u5f0f\u7684\u89e3\u51b3\u65b9\u6848\u3002<br \/>\nTiDB \u5177\u5907\u5982\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\u9ad8\u5ea6\u517c\u5bb9 MySQL<\/li>\n<\/ul>\n<p>\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u65e0\u9700\u4fee\u6539\u4ee3\u7801\u5373\u53ef\u4ece MySQL \u8f7b\u677e\u8fc1\u79fb\u81f3 TiDB\uff0c\u5206\u5e93\u5206\u8868\u540e\u7684 MySQL \u96c6\u7fa4\u4ea6\u53ef\u901a\u8fc7 TiDB \u5de5\u5177\u8fdb\u884c\u5b9e\u65f6\u8fc1\u79fb\u3002<\/p>\n<ul>\n<li>\u6c34\u5e73\u5f39\u6027\u6269\u5c55<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u7b80\u5355\u5730\u589e\u52a0\u65b0\u8282\u70b9\u5373\u53ef\u5b9e\u73b0 TiDB \u7684\u6c34\u5e73\u6269\u5c55\uff0c\u6309\u9700\u6269\u5c55\u541e\u5410\u6216\u5b58\u50a8\uff0c\u8f7b\u677e\u5e94\u5bf9\u9ad8\u5e76\u53d1\u3001\u6d77\u91cf\u6570\u636e\u573a\u666f\u3002<\/p>\n<ul>\n<li>\u5206\u5e03\u5f0f\u4e8b\u52a1<\/li>\n<\/ul>\n<p>TiDB 100% \u652f\u6301\u6807\u51c6\u7684 ACID \u4e8b\u52a1\u3002<\/p>\n<ul>\n<li>\u771f\u6b63\u91d1\u878d\u7ea7\u9ad8\u53ef\u7528<\/li>\n<\/ul>\n<p>\u76f8\u6bd4\u4e8e\u4f20\u7edf\u4e3b\u4ece (M-S) \u590d\u5236\u65b9\u6848\uff0c\u57fa\u4e8e Raft \u7684\u591a\u6570\u6d3e\u9009\u4e3e\u534f\u8bae\u53ef\u4ee5\u63d0\u4f9b\u91d1\u878d\u7ea7\u7684 100% \u6570\u636e\u5f3a\u4e00\u81f4\u6027\u4fdd\u8bc1\uff0c\u4e14\u5728\u4e0d\u4e22\u5931\u5927\u591a\u6570\u526f\u672c\u7684\u524d\u63d0\u4e0b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6545\u969c\u7684\u81ea\u52a8\u6062\u590d (auto-failover)\uff0c\u65e0\u9700\u4eba\u5de5\u4ecb\u5165\u3002<\/p>\n<ul>\n<li>\u4e00\u7ad9\u5f0f HTAP \u89e3\u51b3\u65b9\u6848<\/li>\n<\/ul>\n<p>TiDB \u4f5c\u4e3a\u5178\u578b\u7684 OLTP \u884c\u5b58\u6570\u636e\u5e93\uff0c\u540c\u65f6\u517c\u5177\u5f3a\u5927\u7684 OLAP \u6027\u80fd\uff0c\u914d\u5408 TiSpark\uff0c\u53ef\u63d0\u4f9b\u4e00\u7ad9\u5f0f HTAP \u89e3\u51b3\u65b9\u6848\uff0c\u4e00\u4efd\u5b58\u50a8\u540c\u65f6\u5904\u7406 OLTP &amp; OLAP\uff0c\u65e0\u9700\u4f20\u7edf\u7e41\u7410\u7684 ETL \u8fc7\u7a0b\u3002<\/p>\n<ul>\n<li>\u4e91\u539f\u751f SQL \u6570\u636e\u5e93<\/li>\n<\/ul>\n<p>TiDB \u662f\u4e3a\u4e91\u800c\u8bbe\u8ba1\u7684\u6570\u636e\u5e93\uff0c\u652f\u6301\u516c\u6709\u4e91\u3001\u79c1\u6709\u4e91\u548c\u6df7\u5408\u4e91\uff0c\u4f7f\u90e8\u7f72\u3001\u914d\u7f6e\u548c\u7ef4\u62a4\u53d8\u5f97\u5341\u5206\u7b80\u5355\u3002<br \/>\nTiDB \u7684\u8bbe\u8ba1\u76ee\u6807\u662f 100% \u7684 OLTP \u573a\u666f\u548c 80% \u7684 OLAP \u573a\u666f\uff0c\u66f4\u590d\u6742\u7684 OLAP \u5206\u6790\u53ef\u4ee5\u901a\u8fc7\u00a0<a href=\\\"https:\/\/github.com\/pingcap\/docs-cn\/blob\/master\/tispark\/tispark-user-guide.md\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">TiSpark \u9879\u76ee<\/a>\u6765\u5b8c\u6210\u3002<br \/>\nTiDB \u5bf9\u4e1a\u52a1\u6ca1\u6709\u4efb\u4f55\u4fb5\u5165\u6027\uff0c\u80fd\u4f18\u96c5\u7684\u66ff\u6362\u4f20\u7edf\u7684\u6570\u636e\u5e93\u4e2d\u95f4\u4ef6\u3001\u6570\u636e\u5e93\u5206\u5e93\u5206\u8868\u7b49 Sharding \u65b9\u6848\u3002\u540c\u65f6\u5b83\u4e5f\u8ba9\u5f00\u53d1\u8fd0\u7ef4\u4eba\u5458\u4e0d\u7528\u5173\u6ce8\u6570\u636e\u5e93 Scale \u7684\u7ec6\u8282\u95ee\u9898\uff0c\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u5f00\u53d1\uff0c\u6781\u5927\u7684\u63d0\u5347\u7814\u53d1\u7684\u751f\u4ea7\u529b\u3002<br \/>\n\u4e09\u7bc7\u6587\u7ae0\u4e86\u89e3 TiDB \u6280\u672f\u5185\u5e55\uff1a<br \/>\n<a href=\\\"https:\/\/pingcap.com\/blog-cn\/tidb-internal-1\/\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u8bf4\u5b58\u50a8<\/a><br \/>\n<a href=\\\"https:\/\/pingcap.com\/blog-cn\/tidb-internal-2\/\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u8bf4\u8ba1\u7b97<\/a><br \/>\n<a href=\\\"https:\/\/pingcap.com\/blog-cn\/tidb-internal-3\/\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u8c08\u8c03\u5ea6<\/a><\/p>\n<h1>TiDB \u6574\u4f53\u67b6\u6784<\/h1>\n<p>\u8981\u6df1\u5165\u4e86\u89e3 TiDB \u7684\u6c34\u5e73\u6269\u5c55\u548c\u9ad8\u53ef\u7528\u7279\u70b9\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3 TiDB \u7684\u6574\u4f53\u67b6\u6784\u3002TiDB \u96c6\u7fa4\u4e3b\u8981\u5305\u62ec\u4e09\u4e2a\u6838\u5fc3\u7ec4\u4ef6\uff1aTiDB Server\uff0cPD Server \u548c TiKV Server\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u7528\u4e8e\u89e3\u51b3\u7528\u6237\u590d\u6742 OLAP \u9700\u6c42\u7684\u00a0<a href=\\\"https:\/\/github.com\/pingcap\/tispark\/\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">TiSpark<\/a>\u00a0\u7ec4\u4ef6\u3002<\/p>\n<div class=\\\"image-package\\\">\n<div class=\\\"image-container\\\">\n<div class=\\\"image-container-fill\\\"><\/div>\n<div class=\\\"image-view\\\" data-width=\\\"1996\\\" data-height=\\\"1112\\\"><img class=\\\"\\\" src=\\\"\/\/upload-images.jianshu.io\/upload_images\/10508279-ef392266c201c4ed.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/1200\/format\/webp\\\" data-original-src=\\\"\/\/upload-images.jianshu.io\/upload_images\/10508279-ef392266c201c4ed.png\\\" data-original-width=\\\"1996\\\" data-original-height=\\\"1112\\\" data-original-format=\\\"image\/png\\\" data-original-filesize=\\\"202756\\\" data-image-index=\\\"0\\\" \/><\/div>\n<\/div>\n<div class=\\\"image-caption\\\"><\/div>\n<\/div>\n<ul>\n<li>TiDB Server<\/li>\n<\/ul>\n<p>TiDB Server \u8d1f\u8d23\u63a5\u6536 SQL \u8bf7\u6c42\uff0c\u5904\u7406 SQL \u76f8\u5173\u7684\u903b\u8f91\uff0c\u5e76\u901a\u8fc7 PD \u627e\u5230\u5b58\u50a8\u8ba1\u7b97\u6240\u9700\u6570\u636e\u7684 TiKV \u5730\u5740\uff0c\u4e0e TiKV \u4ea4\u4e92\u83b7\u53d6\u6570\u636e\uff0c\u6700\u7ec8\u8fd4\u56de\u7ed3\u679c\u3002TiDB Server \u662f\u65e0\u72b6\u6001\u7684\uff0c\u5176\u672c\u8eab\u5e76\u4e0d\u5b58\u50a8\u6570\u636e\uff0c\u53ea\u8d1f\u8d23\u8ba1\u7b97\uff0c\u53ef\u4ee5\u65e0\u9650\u6c34\u5e73\u6269\u5c55\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d1f\u8f7d\u5747\u8861\u7ec4\u4ef6\uff08\u5982LVS\u3001HAProxy \u6216 F5\uff09\u5bf9\u5916\u63d0\u4f9b\u7edf\u4e00\u7684\u63a5\u5165\u5730\u5740\u3002<\/p>\n<ul>\n<li>PD Server<\/li>\n<\/ul>\n<p>Placement Driver (\u7b80\u79f0 PD) \u662f\u6574\u4e2a\u96c6\u7fa4\u7684\u7ba1\u7406\u6a21\u5757\uff0c\u5176\u4e3b\u8981\u5de5\u4f5c\u6709\u4e09\u4e2a\uff1a\u4e00\u662f\u5b58\u50a8\u96c6\u7fa4\u7684\u5143\u4fe1\u606f\uff08\u67d0\u4e2a Key \u5b58\u50a8\u5728\u54ea\u4e2a TiKV \u8282\u70b9\uff09\uff1b\u4e8c\u662f\u5bf9 TiKV \u96c6\u7fa4\u8fdb\u884c\u8c03\u5ea6\u548c\u8d1f\u8f7d\u5747\u8861\uff08\u5982\u6570\u636e\u7684\u8fc1\u79fb\u3001Raft group leader \u7684\u8fc1\u79fb\u7b49\uff09\uff1b\u4e09\u662f\u5206\u914d\u5168\u5c40\u552f\u4e00\u4e14\u9012\u589e\u7684\u4e8b\u52a1 ID\u3002<br \/>\nPD \u662f\u4e00\u4e2a\u96c6\u7fa4\uff0c\u9700\u8981\u90e8\u7f72\u5947\u6570\u4e2a\u8282\u70b9\uff0c\u4e00\u822c\u7ebf\u4e0a\u63a8\u8350\u81f3\u5c11\u90e8\u7f72 3 \u4e2a\u8282\u70b9\u3002<\/p>\n<ul>\n<li>TiKV Server<\/li>\n<\/ul>\n<p>TiKV Server \u8d1f\u8d23\u5b58\u50a8\u6570\u636e\uff0c\u4ece\u5916\u90e8\u770b TiKV \u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\u63d0\u4f9b\u4e8b\u52a1\u7684 Key-Value \u5b58\u50a8\u5f15\u64ce\u3002\u5b58\u50a8\u6570\u636e\u7684\u57fa\u672c\u5355\u4f4d\u662f Region\uff0c\u6bcf\u4e2a Region \u8d1f\u8d23\u5b58\u50a8\u4e00\u4e2a Key Range\uff08\u4ece StartKey \u5230 EndKey \u7684\u5de6\u95ed\u53f3\u5f00\u533a\u95f4\uff09\u7684\u6570\u636e\uff0c\u6bcf\u4e2a TiKV \u8282\u70b9\u4f1a\u8d1f\u8d23\u591a\u4e2a Region\u3002TiKV \u4f7f\u7528 Raft \u534f\u8bae\u505a\u590d\u5236\uff0c\u4fdd\u6301\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5bb9\u707e\u3002\u526f\u672c\u4ee5 Region \u4e3a\u5355\u4f4d\u8fdb\u884c\u7ba1\u7406\uff0c\u4e0d\u540c\u8282\u70b9\u4e0a\u7684\u591a\u4e2a Region \u6784\u6210\u4e00\u4e2a Raft Group\uff0c\u4e92\u4e3a\u526f\u672c\u3002\u6570\u636e\u5728\u591a\u4e2a TiKV \u4e4b\u95f4\u7684\u8d1f\u8f7d\u5747\u8861\u7531 PD \u8c03\u5ea6\uff0c\u8fd9\u91cc\u4e5f\u662f\u4ee5 Region \u4e3a\u5355\u4f4d\u8fdb\u884c\u8c03\u5ea6\u3002<\/p>\n<ul>\n<li>TiSpark<\/li>\n<\/ul>\n<p>TiSpark \u4f5c\u4e3a TiDB \u4e2d\u89e3\u51b3\u7528\u6237\u590d\u6742 OLAP \u9700\u6c42\u7684\u4e3b\u8981\u7ec4\u4ef6\uff0c\u5c06 Spark SQL \u76f4\u63a5\u8fd0\u884c\u5728 TiDB \u5b58\u50a8\u5c42\u4e0a\uff0c\u540c\u65f6\u878d\u5408 TiKV \u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u4f18\u52bf\uff0c\u5e76\u878d\u5165\u5927\u6570\u636e\u793e\u533a\u751f\u6001\u3002\u81f3\u6b64\uff0cTiDB \u53ef\u4ee5\u901a\u8fc7\u4e00\u5957\u7cfb\u7edf\uff0c\u540c\u65f6\u652f\u6301 OLTP \u4e0e OLAP\uff0c\u514d\u9664\u7528\u6237\u6570\u636e\u540c\u6b65\u7684\u70e6\u607c\u3002<\/p>\n<h1>TiDB \u6838\u5fc3\u7279\u6027<\/h1>\n<p>\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd TiDB \u7684\u4e24\u5927\u6838\u5fc3\u7279\u6027\uff1a\u6c34\u5e73\u6269\u5c55\u4e0e\u9ad8\u53ef\u7528\u3002<\/p>\n<ul>\n<li>\u6c34\u5e73\u6269\u5c55<\/li>\n<\/ul>\n<p>\u65e0\u9650\u6c34\u5e73\u6269\u5c55\u662f TiDB \u7684\u4e00\u5927\u7279\u70b9\uff0c\u8fd9\u91cc\u8bf4\u7684\u6c34\u5e73\u6269\u5c55\u5305\u62ec\u4e24\u65b9\u9762\uff1a\u8ba1\u7b97\u80fd\u529b\u548c\u5b58\u50a8\u80fd\u529b\u3002TiDB Server \u8d1f\u8d23\u5904\u7406 SQL \u8bf7\u6c42\uff0c\u968f\u7740\u4e1a\u52a1\u7684\u589e\u957f\uff0c\u53ef\u4ee5\u7b80\u5355\u7684\u6dfb\u52a0 TiDB Server \u8282\u70b9\uff0c\u63d0\u9ad8\u6574\u4f53\u7684\u5904\u7406\u80fd\u529b\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7684\u541e\u5410\u3002TiKV \u8d1f\u8d23\u5b58\u50a8\u6570\u636e\uff0c\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u957f\uff0c\u53ef\u4ee5\u90e8\u7f72\u66f4\u591a\u7684 TiKV Server \u8282\u70b9\u89e3\u51b3\u6570\u636e Scale \u7684\u95ee\u9898\u3002PD \u4f1a\u5728 TiKV \u8282\u70b9\u4e4b\u95f4\u4ee5 Region \u4e3a\u5355\u4f4d\u505a\u8c03\u5ea6\uff0c\u5c06\u90e8\u5206\u6570\u636e\u8fc1\u79fb\u5230\u65b0\u52a0\u7684\u8282\u70b9\u4e0a\u3002\u6240\u4ee5\u5728\u4e1a\u52a1\u7684\u65e9\u671f\uff0c\u53ef\u4ee5\u53ea\u90e8\u7f72\u5c11\u91cf\u7684\u670d\u52a1\u5b9e\u4f8b\uff08\u63a8\u8350\u81f3\u5c11\u90e8\u7f72 3 \u4e2a TiKV\uff0c 3 \u4e2a PD\uff0c2 \u4e2a TiDB\uff09\uff0c\u968f\u7740\u4e1a\u52a1\u91cf\u7684\u589e\u957f\uff0c\u6309\u7167\u9700\u6c42\u6dfb\u52a0 TiKV \u6216\u8005 TiDB \u5b9e\u4f8b\u3002<\/p>\n<ul>\n<li>\u9ad8\u53ef\u7528<\/li>\n<\/ul>\n<p>\u9ad8\u53ef\u7528\u662f TiDB \u7684\u53e6\u4e00\u5927\u7279\u70b9\uff0cTiDB\/TiKV\/PD \u8fd9\u4e09\u4e2a\u7ec4\u4ef6\u90fd\u80fd\u5bb9\u5fcd\u90e8\u5206\u5b9e\u4f8b\u5931\u6548\uff0c\u4e0d\u5f71\u54cd\u6574\u4e2a\u96c6\u7fa4\u7684\u53ef\u7528\u6027\u3002\u4e0b\u9762\u5206\u522b\u8bf4\u660e\u8fd9\u4e09\u4e2a\u7ec4\u4ef6\u7684\u53ef\u7528\u6027\u3001\u5355\u4e2a\u5b9e\u4f8b\u5931\u6548\u540e\u7684\u540e\u679c\u4ee5\u53ca\u5982\u4f55\u6062\u590d\u3002<\/p>\n<ul>\n<li>TiDB<\/li>\n<\/ul>\n<p>TiDB \u662f\u65e0\u72b6\u6001\u7684\uff0c\u63a8\u8350\u81f3\u5c11\u90e8\u7f72\u4e24\u4e2a\u5b9e\u4f8b\uff0c\u524d\u7aef\u901a\u8fc7\u8d1f\u8f7d\u5747\u8861\u7ec4\u4ef6\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002\u5f53\u5355\u4e2a\u5b9e\u4f8b\u5931\u6548\u65f6\uff0c\u4f1a\u5f71\u54cd\u6b63\u5728\u8fd9\u4e2a\u5b9e\u4f8b\u4e0a\u8fdb\u884c\u7684 Session\uff0c\u4ece\u5e94\u7528\u7684\u89d2\u5ea6\u770b\uff0c\u4f1a\u51fa\u73b0\u5355\u6b21\u8bf7\u6c42\u5931\u8d25\u7684\u60c5\u51b5\uff0c\u91cd\u65b0\u8fde\u63a5\u540e\u5373\u53ef\u7ee7\u7eed\u83b7\u5f97\u670d\u52a1\u3002\u5355\u4e2a\u5b9e\u4f8b\u5931\u6548\u540e\uff0c\u53ef\u4ee5\u91cd\u542f\u8fd9\u4e2a\u5b9e\u4f8b\u6216\u8005\u90e8\u7f72\u4e00\u4e2a\u65b0\u7684\u5b9e\u4f8b\u3002<\/p>\n<ul>\n<li>PD<\/li>\n<\/ul>\n<p>PD \u662f\u4e00\u4e2a\u96c6\u7fa4\uff0c\u901a\u8fc7 Raft \u534f\u8bae\u4fdd\u6301\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u5355\u4e2a\u5b9e\u4f8b\u5931\u6548\u65f6\uff0c\u5982\u679c\u8fd9\u4e2a\u5b9e\u4f8b\u4e0d\u662f Raft \u7684 leader\uff0c\u90a3\u4e48\u670d\u52a1\u5b8c\u5168\u4e0d\u53d7\u5f71\u54cd\uff1b\u5982\u679c\u8fd9\u4e2a\u5b9e\u4f8b\u662f Raft \u7684 leader\uff0c\u4f1a\u91cd\u65b0\u9009\u51fa\u65b0\u7684 Raft leader\uff0c\u81ea\u52a8\u6062\u590d\u670d\u52a1\u3002PD \u5728\u9009\u4e3e\u7684\u8fc7\u7a0b\u4e2d\u65e0\u6cd5\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u8fd9\u4e2a\u65f6\u95f4\u5927\u7ea6\u662f3\u79d2\u949f\u3002\u63a8\u8350\u81f3\u5c11\u90e8\u7f72\u4e09\u4e2a PD \u5b9e\u4f8b\uff0c\u5355\u4e2a\u5b9e\u4f8b\u5931\u6548\u540e\uff0c\u91cd\u542f\u8fd9\u4e2a\u5b9e\u4f8b\u6216\u8005\u6dfb\u52a0\u65b0\u7684\u5b9e\u4f8b\u3002<\/p>\n<ul>\n<li>TiKV<\/li>\n<\/ul>\n<p>TiKV \u662f\u4e00\u4e2a\u96c6\u7fa4\uff0c\u901a\u8fc7 Raft \u534f\u8bae\u4fdd\u6301\u6570\u636e\u7684\u4e00\u81f4\u6027\uff08\u526f\u672c\u6570\u91cf\u53ef\u914d\u7f6e\uff0c\u9ed8\u8ba4\u4fdd\u5b58\u4e09\u526f\u672c\uff09\uff0c\u5e76\u901a\u8fc7 PD \u505a\u8d1f\u8f7d\u5747\u8861\u8c03\u5ea6\u3002\u5355\u4e2a\u8282\u70b9\u5931\u6548\u65f6\uff0c\u4f1a\u5f71\u54cd\u8fd9\u4e2a\u8282\u70b9\u4e0a\u5b58\u50a8\u7684\u6240\u6709 Region\u3002\u5bf9\u4e8e Region \u4e2d\u7684 Leader \u7ed3\u70b9\uff0c\u4f1a\u4e2d\u65ad\u670d\u52a1\uff0c\u7b49\u5f85\u91cd\u65b0\u9009\u4e3e\uff1b\u5bf9\u4e8e Region \u4e2d\u7684 Follower \u8282\u70b9\uff0c\u4e0d\u4f1a\u5f71\u54cd\u670d\u52a1\u3002\u5f53\u67d0\u4e2a TiKV \u8282\u70b9\u5931\u6548\uff0c\u5e76\u4e14\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff08\u9ed8\u8ba4 30 \u5206\u949f\uff09\u65e0\u6cd5\u6062\u590d\uff0cPD \u4f1a\u5c06\u5176\u4e0a\u7684\u6570\u636e\u8fc1\u79fb\u5230\u5176\u4ed6\u7684 TiKV \u8282\u70b9\u4e0a\u3002\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>TiDB \u7b80\u4ecb TiDB \u662f PingCAP \u516c\u53f8\u8bbe\u8ba1\u7684\u5f00\u6e90\u5206\u5e03\u5f0f HTAP (Hybrid Transact &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1478\"> <span class=\"screen-reader-text\">TiDB\u4ecb\u7ecd<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[90],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"TiDB \u7b80\u4ecb TiDB \u662f PingCAP \u516c\u53f8\u8bbe\u8ba1\u7684\u5f00\u6e90\u5206\u5e03\u5f0f HTAP (Hybrid Transact&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1478"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1478"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1478\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1478"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}