{"id":1379,"date":"2020-05-25T01:41:19","date_gmt":"2020-05-24T17:41:19","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1379"},"modified":"2022-03-19T02:04:26","modified_gmt":"2022-03-18T18:04:26","slug":"apache-hudi%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1379","title":{"rendered":"Apache Hudi\u4ecb\u7ecd"},"content":{"rendered":"<header>\n<h2 id=\\\"page-title\\\" class=\\\"page__title\\\">Apache Hudi\u4ecb\u7ecd<\/h2>\n<\/header>\n<section class=\\\"page__content\\\">Apache Hudi(\u53d1\u97f3\u4e3a\u201cHudi\u201d)\u5728DFS\u7684\u6570\u636e\u96c6\u4e0a\u63d0\u4f9b\u4ee5\u4e0b\u6d41\u539f\u8bed\n<ul>\n<li>\u63d2\u5165\u66f4\u65b0 (\u5982\u4f55\u6539\u53d8\u6570\u636e\u96c6)<\/li>\n<li>\u589e\u91cf\u62c9\u53d6 (\u5982\u4f55\u83b7\u53d6\u53d8\u66f4\u7684\u6570\u636e)<\/li>\n<\/ul>\n<h2 id=\\\"\u65f6\u95f4\u8f74\\\" class=\\\"\\\">\u65f6\u95f4\u8f74<span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/h2>\n<p>\u5728\u5b83\u7684\u6838\u5fc3\uff0cHudi\u7ef4\u62a4\u4e00\u6761\u5305\u542b\u5728\u4e0d\u540c\u7684<code class=\\\"highlighter-rouge\\\">\u5373\u65f6<\/code>\u65f6\u95f4\u6240\u6709\u5bf9\u6570\u636e\u96c6\u64cd\u4f5c\u7684<code class=\\\"highlighter-rouge\\\">\u65f6\u95f4\u8f74<\/code>\uff0c\u4ece\u800c\u63d0\u4f9b\uff0c\u4ece\u4e0d\u540c\u65f6\u95f4\u70b9\u51fa\u53d1\u5f97\u5230\u4e0d\u540c\u7684\u89c6\u56fe\u4e0b\u7684\u6570\u636e\u96c6\u3002Hudi\u5373\u65f6\u5305\u542b\u4ee5\u4e0b\u7ec4\u4ef6<\/p>\n<ul>\n<li>\u64cd\u4f5c\u7c7b\u578b\u00a0: \u5bf9\u6570\u636e\u96c6\u6267\u884c\u7684\u64cd\u4f5c\u7c7b\u578b<\/li>\n<li>\u5373\u65f6\u65f6\u95f4\u00a0: \u5373\u65f6\u65f6\u95f4\u901a\u5e38\u662f\u4e00\u4e2a\u65f6\u95f4\u6233(\u4f8b\u5982\uff1a20190117010349)\uff0c\u8be5\u65f6\u95f4\u6233\u6309\u64cd\u4f5c\u5f00\u59cb\u65f6\u95f4\u7684\u987a\u5e8f\u5355\u8c03\u589e\u52a0\u3002<\/li>\n<li>\u72b6\u6001\u00a0: \u5373\u65f6\u7684\u72b6\u6001<\/li>\n<\/ul>\n<p>Hudi\u4fdd\u8bc1\u5728\u65f6\u95f4\u8f74\u4e0a\u6267\u884c\u7684\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u548c\u57fa\u4e8e\u5373\u65f6\u65f6\u95f4\u7684\u65f6\u95f4\u8f74\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u6267\u884c\u7684\u5173\u952e\u64cd\u4f5c\u5305\u62ec<\/p>\n<ul>\n<li>COMMITS\u00a0&#8211; \u4e00\u6b21\u63d0\u4ea4\u8868\u793a\u5c06\u4e00\u7ec4\u8bb0\u5f55\u539f\u5b50\u5199\u5165\u5230\u6570\u636e\u96c6\u4e2d\u3002<\/li>\n<li>CLEANS\u00a0&#8211; \u5220\u9664\u6570\u636e\u96c6\u4e2d\u4e0d\u518d\u9700\u8981\u7684\u65e7\u6587\u4ef6\u7248\u672c\u7684\u540e\u53f0\u6d3b\u52a8\u3002<\/li>\n<li>DELTA_COMMIT\u00a0&#8211; \u589e\u91cf\u63d0\u4ea4\u662f\u6307\u5c06\u4e00\u6279\u8bb0\u5f55\u539f\u5b50\u5199\u5165\u5230MergeOnRead\u5b58\u50a8\u7c7b\u578b\u7684\u6570\u636e\u96c6\u4e2d\uff0c\u5176\u4e2d\u4e00\u4e9b\/\u6240\u6709\u6570\u636e\u90fd\u53ef\u4ee5\u53ea\u5199\u5230\u589e\u91cf\u65e5\u5fd7\u4e2d\u3002<\/li>\n<li>COMPACTION\u00a0&#8211; \u534f\u8c03Hudi\u4e2d\u5dee\u5f02\u6570\u636e\u7ed3\u6784\u7684\u540e\u53f0\u6d3b\u52a8\uff0c\u4f8b\u5982\uff1a\u5c06\u66f4\u65b0\u4ece\u57fa\u4e8e\u884c\u7684\u65e5\u5fd7\u6587\u4ef6\u53d8\u6210\u5217\u683c\u5f0f\u3002\u5728\u5185\u90e8\uff0c\u538b\u7f29\u8868\u73b0\u4e3a\u65f6\u95f4\u8f74\u4e0a\u7684\u7279\u6b8a\u63d0\u4ea4\u3002<\/li>\n<li>ROLLBACK\u00a0&#8211; \u8868\u793a\u63d0\u4ea4\/\u589e\u91cf\u63d0\u4ea4\u4e0d\u6210\u529f\u4e14\u5df2\u56de\u6eda\uff0c\u5220\u9664\u5728\u5199\u5165\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u6240\u6709\u90e8\u5206\u6587\u4ef6\u3002<\/li>\n<li>SAVEPOINT\u00a0&#8211; \u5c06\u67d0\u4e9b\u6587\u4ef6\u7ec4\u6807\u8bb0\u4e3a\u201d\u5df2\u4fdd\u5b58\u201d\uff0c\u4ee5\u4fbf\u6e05\u7406\u7a0b\u5e8f\u4e0d\u4f1a\u5c06\u5176\u5220\u9664\u3002\u5728\u53d1\u751f\u707e\u96be\/\u6570\u636e\u6062\u590d\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u6709\u52a9\u4e8e\u5c06\u6570\u636e\u96c6\u8fd8\u539f\u5230\u65f6\u95f4\u8f74\u4e0a\u7684\u67d0\u4e2a\u70b9\u3002<\/li>\n<\/ul>\n<p>\u4efb\u4f55\u7ed9\u5b9a\u7684\u5373\u65f6\u90fd\u53ef\u4ee5\u5904\u4e8e\u4ee5\u4e0b\u72b6\u6001\u4e4b\u4e00<\/p>\n<ul>\n<li>REQUESTED\u00a0&#8211; \u8868\u793a\u5df2\u8c03\u5ea6\u4f46\u5c1a\u672a\u542f\u52a8\u7684\u64cd\u4f5c\u3002<\/li>\n<li>INFLIGHT\u00a0&#8211; \u8868\u793a\u5f53\u524d\u6b63\u5728\u6267\u884c\u8be5\u64cd\u4f5c\u3002<\/li>\n<li>COMPLETED\u00a0&#8211; \u8868\u793a\u5728\u65f6\u95f4\u8f74\u4e0a\u5b8c\u6210\u4e86\u8be5\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<figure><img class=\\\"docimage\\\" src=\\\"https:\/\/hudi.apache.org\/assets\/images\/hudi_timeline.png\\\" alt=\\\"hudi_timeline.png\\\" \/><\/figure>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u663e\u793a\u4e86\u5728Hudi\u6570\u636e\u96c6\u4e0a\u5927\u7ea610:00\u523010:20\u4e4b\u95f4\u53d1\u751f\u7684\u66f4\u65b0\u4e8b\u4ef6\uff0c\u5927\u7ea6\u6bcf5\u5206\u949f\u4e00\u6b21\uff0c\u5c06\u63d0\u4ea4\u5143\u6570\u636e\u4ee5\u53ca\u5176\u4ed6\u540e\u53f0\u6e05\u7406\/\u538b\u7f29\u4fdd\u7559\u5728Hudi\u65f6\u95f4\u8f74\u4e0a\u3002 \u89c2\u5bdf\u7684\u5173\u952e\u70b9\u662f\uff1a\u63d0\u4ea4\u65f6\u95f4\u6307\u793a\u6570\u636e\u7684\u5230\u8fbe\u65f6\u95f4\uff08\u4e0a\u534810:20\uff09\uff0c\u800c\u5b9e\u9645\u6570\u636e\u7ec4\u7ec7\u5219\u53cd\u6620\u4e86\u5b9e\u9645\u65f6\u95f4\u6216\u4e8b\u4ef6\u65f6\u95f4\uff0c\u5373\u6570\u636e\u6240\u53cd\u6620\u7684\uff08\u4ece07:00\u5f00\u59cb\u7684\u6bcf\u5c0f\u65f6\u65f6\u6bb5\uff09\u3002\u5728\u6743\u8861\u6570\u636e\u5ef6\u8fdf\u548c\u5b8c\u6574\u6027\u65f6\uff0c\u8fd9\u662f\u4e24\u4e2a\u5173\u952e\u6982\u5ff5\u3002<\/p>\n<p>\u5982\u679c\u6709\u5ef6\u8fdf\u5230\u8fbe\u7684\u6570\u636e\uff08\u4e8b\u4ef6\u65f6\u95f4\u4e3a9:00\u7684\u6570\u636e\u572810:20\u8fbe\u5230\uff0c\u5ef6\u8fdf &gt;1 \u5c0f\u65f6\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230upsert\u5c06\u65b0\u6570\u636e\u751f\u6210\u5230\u66f4\u65e7\u7684\u65f6\u95f4\u6bb5\/\u6587\u4ef6\u5939\u4e2d\u3002 \u5728\u65f6\u95f4\u8f74\u7684\u5e2e\u52a9\u4e0b\uff0c\u589e\u91cf\u67e5\u8be2\u53ef\u4ee5\u53ea\u63d0\u53d610:00\u4ee5\u540e\u6210\u529f\u63d0\u4ea4\u7684\u65b0\u6570\u636e\uff0c\u5e76\u975e\u5e38\u9ad8\u6548\u5730\u53ea\u6d88\u8d39\u66f4\u6539\u8fc7\u7684\u6587\u4ef6\uff0c\u4e14\u65e0\u9700\u626b\u63cf\u66f4\u5927\u7684\u6587\u4ef6\u8303\u56f4\uff0c\u4f8b\u598207:00\u540e\u7684\u6240\u6709\u65f6\u95f4\u6bb5\u3002<\/p>\n<h2 id=\\\"\u6587\u4ef6\u7ec4\u7ec7\\\" class=\\\"\\\">\u6587\u4ef6\u7ec4\u7ec7<a class=\\\"header-link\\\" title=\\\"Permalink\\\" href=\\\"https:\/\/hudi.apache.org\/cn\/docs\/concepts.html#%E6%96%87%E4%BB%B6%E7%BB%84%E7%BB%87\\\">Permalink<i class=\\\"fa fa-link\\\"><\/i><\/a><\/h2>\n<p>Hudi\u5c06DFS\u4e0a\u7684\u6570\u636e\u96c6\u7ec4\u7ec7\u5230\u57fa\u672c\u8def\u5f84\u4e0b\u7684\u76ee\u5f55\u7ed3\u6784\u4e2d\u3002\u6570\u636e\u96c6\u5206\u4e3a\u591a\u4e2a\u5206\u533a\uff0c\u8fd9\u4e9b\u5206\u533a\u662f\u5305\u542b\u8be5\u5206\u533a\u7684\u6570\u636e\u6587\u4ef6\u7684\u6587\u4ef6\u5939\uff0c\u8fd9\u4e0eHive\u8868\u975e\u5e38\u76f8\u4f3c\u3002 \u6bcf\u4e2a\u5206\u533a\u88ab\u76f8\u5bf9\u4e8e\u57fa\u672c\u8def\u5f84\u7684\u7279\u5b9a\u5206\u533a\u8def\u5f84\u533a\u5206\u5f00\u6765\u3002<\/p>\n<p>\u5728\u6bcf\u4e2a\u5206\u533a\u5185\uff0c\u6587\u4ef6\u88ab\u7ec4\u7ec7\u4e3a\u6587\u4ef6\u7ec4\uff0c\u7531\u6587\u4ef6id\u552f\u4e00\u6807\u8bc6\u3002 \u6bcf\u4e2a\u6587\u4ef6\u7ec4\u5305\u542b\u591a\u4e2a\u6587\u4ef6\u5207\u7247\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5207\u7247\u5305\u542b\u5728\u67d0\u4e2a\u63d0\u4ea4\/\u538b\u7f29\u5373\u65f6\u65f6\u95f4\u751f\u6210\u7684\u57fa\u672c\u5217\u6587\u4ef6\uff08*.parquet\uff09\u4ee5\u53ca\u4e00\u7ec4\u65e5\u5fd7\u6587\u4ef6\uff08*.log*\uff09\uff0c\u8be5\u6587\u4ef6\u5305\u542b\u81ea\u751f\u6210\u57fa\u672c\u6587\u4ef6\u4ee5\u6765\u5bf9\u57fa\u672c\u6587\u4ef6\u7684\u63d2\u5165\/\u66f4\u65b0\u3002 Hudi\u91c7\u7528MVCC\u8bbe\u8ba1\uff0c\u5176\u4e2d\u538b\u7f29\u64cd\u4f5c\u5c06\u65e5\u5fd7\u548c\u57fa\u672c\u6587\u4ef6\u5408\u5e76\u4ee5\u4ea7\u751f\u65b0\u7684\u6587\u4ef6\u7247\uff0c\u800c\u6e05\u7406\u64cd\u4f5c\u5219\u5c06\u672a\u4f7f\u7528\u7684\/\u8f83\u65e7\u7684\u6587\u4ef6\u7247\u5220\u9664\u4ee5\u56de\u6536DFS\u4e0a\u7684\u7a7a\u95f4\u3002<\/p>\n<p>Hudi\u901a\u8fc7\u7d22\u5f15\u673a\u5236\u5c06\u7ed9\u5b9a\u7684hoodie\u952e\uff08\u8bb0\u5f55\u952e+\u5206\u533a\u8def\u5f84\uff09\u6620\u5c04\u5230\u6587\u4ef6\u7ec4\uff0c\u4ece\u800c\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684Upsert\u3002 \u4e00\u65e6\u5c06\u8bb0\u5f55\u7684\u7b2c\u4e00\u4e2a\u7248\u672c\u5199\u5165\u6587\u4ef6\uff0c\u8bb0\u5f55\u952e\u548c\u6587\u4ef6\u7ec4\/\u6587\u4ef6id\u4e4b\u95f4\u7684\u6620\u5c04\u5c31\u6c38\u8fdc\u4e0d\u4f1a\u6539\u53d8\u3002 \u7b80\u800c\u8a00\u4e4b\uff0c\u6620\u5c04\u7684\u6587\u4ef6\u7ec4\u5305\u542b\u4e00\u7ec4\u8bb0\u5f55\u7684\u6240\u6709\u7248\u672c\u3002<\/p>\n<h2 id=\\\"\u5b58\u50a8\u7c7b\u578b\u548c\u89c6\u56fe\\\" class=\\\"\\\">\u5b58\u50a8\u7c7b\u578b\u548c\u89c6\u56fe<a class=\\\"header-link\\\" title=\\\"Permalink\\\" href=\\\"https:\/\/hudi.apache.org\/cn\/docs\/concepts.html#%E5%AD%98%E5%82%A8%E7%B1%BB%E5%9E%8B%E5%92%8C%E8%A7%86%E5%9B%BE\\\"><span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/a><\/h2>\n<p>Hudi\u5b58\u50a8\u7c7b\u578b\u5b9a\u4e49\u4e86\u5982\u4f55\u5728DFS\u4e0a\u5bf9\u6570\u636e\u8fdb\u884c\u7d22\u5f15\u548c\u5e03\u5c40\u4ee5\u53ca\u5982\u4f55\u5728\u8fd9\u79cd\u7ec4\u7ec7\u4e4b\u4e0a\u5b9e\u73b0\u4e0a\u8ff0\u539f\u8bed\u548c\u65f6\u95f4\u8f74\u6d3b\u52a8\uff08\u5373\u5982\u4f55\u5199\u5165\u6570\u636e\uff09\u3002 \u53cd\u8fc7\u6765\uff0c\u89c6\u56fe\u5b9a\u4e49\u4e86\u57fa\u7840\u6570\u636e\u5982\u4f55\u66b4\u9732\u7ed9\u67e5\u8be2\uff08\u5373\u5982\u4f55\u8bfb\u53d6\u6570\u636e\uff09\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b58\u50a8\u7c7b\u578b<\/th>\n<th>\u652f\u6301\u7684\u89c6\u56fe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5199\u65f6\u590d\u5236<\/td>\n<td>\u8bfb\u4f18\u5316 + \u589e\u91cf<\/td>\n<\/tr>\n<tr>\n<td>\u8bfb\u65f6\u5408\u5e76<\/td>\n<td>\u8bfb\u4f18\u5316 + \u589e\u91cf + \u8fd1\u5b9e\u65f6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 id=\\\"\u5b58\u50a8\u7c7b\u578b\\\" class=\\\"\\\">\u5b58\u50a8\u7c7b\u578b<a class=\\\"header-link\\\" title=\\\"Permalink\\\" href=\\\"https:\/\/hudi.apache.org\/cn\/docs\/concepts.html#%E5%AD%98%E5%82%A8%E7%B1%BB%E5%9E%8B\\\"><span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/a><\/h3>\n<p>Hudi\u652f\u6301\u4ee5\u4e0b\u5b58\u50a8\u7c7b\u578b\u3002<\/p>\n<ul>\n<li>\u5199\u65f6\u590d\u5236\u00a0: \u4ec5\u4f7f\u7528\u5217\u6587\u4ef6\u683c\u5f0f\uff08\u4f8b\u5982parquet\uff09\u5b58\u50a8\u6570\u636e\u3002\u901a\u8fc7\u5728\u5199\u5165\u8fc7\u7a0b\u4e2d\u6267\u884c\u540c\u6b65\u5408\u5e76\u4ee5\u66f4\u65b0\u7248\u672c\u5e76\u91cd\u5199\u6587\u4ef6\u3002<\/li>\n<li>\u8bfb\u65f6\u5408\u5e76\u00a0: \u4f7f\u7528\u5217\u5f0f\uff08\u4f8b\u5982parquet\uff09+ \u57fa\u4e8e\u884c\uff08\u4f8b\u5982avro\uff09\u7684\u6587\u4ef6\u683c\u5f0f\u7ec4\u5408\u6765\u5b58\u50a8\u6570\u636e\u3002 \u66f4\u65b0\u8bb0\u5f55\u5230\u589e\u91cf\u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u8fdb\u884c\u540c\u6b65\u6216\u5f02\u6b65\u538b\u7f29\u4ee5\u751f\u6210\u5217\u6587\u4ef6\u7684\u65b0\u7248\u672c\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u8868\u603b\u7ed3\u4e86\u8fd9\u4e24\u79cd\u5b58\u50a8\u7c7b\u578b\u4e4b\u95f4\u7684\u6743\u8861<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6743\u8861<\/th>\n<th>\u5199\u65f6\u590d\u5236<\/th>\n<th>\u8bfb\u65f6\u5408\u5e76<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6570\u636e\u5ef6\u8fdf<\/td>\n<td>\u66f4\u9ad8<\/td>\n<td>\u66f4\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u66f4\u65b0\u4ee3\u4ef7(I\/O)<\/td>\n<td>\u66f4\u9ad8\uff08\u91cd\u5199\u6574\u4e2aparquet\u6587\u4ef6\uff09<\/td>\n<td>\u66f4\u4f4e\uff08\u8ffd\u52a0\u5230\u589e\u91cf\u65e5\u5fd7\uff09<\/td>\n<\/tr>\n<tr>\n<td>Parquet\u6587\u4ef6\u5927\u5c0f<\/td>\n<td>\u66f4\u5c0f\uff08\u9ad8\u66f4\u65b0\u4ee3\u4ef7\uff08I\/o\uff09\uff09<\/td>\n<td>\u66f4\u5927\uff08\u4f4e\u66f4\u65b0\u4ee3\u4ef7\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5199\u653e\u5927<\/td>\n<td>\u66f4\u9ad8<\/td>\n<td>\u66f4\u4f4e\uff08\u53d6\u51b3\u4e8e\u538b\u7f29\u7b56\u7565\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 id=\\\"\u89c6\u56fe\\\" class=\\\"\\\">\u89c6\u56fe<span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/h3>\n<p>Hudi\u652f\u6301\u4ee5\u4e0b\u5b58\u50a8\u6570\u636e\u7684\u89c6\u56fe<\/p>\n<ul>\n<li>\u8bfb\u4f18\u5316\u89c6\u56fe\u00a0: \u5728\u6b64\u89c6\u56fe\u4e0a\u7684\u67e5\u8be2\u5c06\u67e5\u770b\u7ed9\u5b9a\u63d0\u4ea4\u6216\u538b\u7f29\u64cd\u4f5c\u4e2d\u6570\u636e\u96c6\u7684\u6700\u65b0\u5feb\u7167\u3002 \u8be5\u89c6\u56fe\u4ec5\u5c06\u6700\u65b0\u6587\u4ef6\u5207\u7247\u4e2d\u7684\u57fa\u672c\/\u5217\u6587\u4ef6\u66b4\u9732\u7ed9\u67e5\u8be2\uff0c\u5e76\u4fdd\u8bc1\u4e0e\u975eHudi\u5217\u5f0f\u6570\u636e\u96c6\u76f8\u6bd4\uff0c\u5177\u6709\u76f8\u540c\u7684\u5217\u5f0f\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<li>\u589e\u91cf\u89c6\u56fe\u00a0: \u5bf9\u8be5\u89c6\u56fe\u7684\u67e5\u8be2\u53ea\u80fd\u770b\u5230\u4ece\u67d0\u4e2a\u63d0\u4ea4\/\u538b\u7f29\u540e\u5199\u5165\u6570\u636e\u96c6\u7684\u65b0\u6570\u636e\u3002\u8be5\u89c6\u56fe\u6709\u6548\u5730\u63d0\u4f9b\u4e86\u66f4\u6539\u6d41\uff0c\u6765\u652f\u6301\u589e\u91cf\u6570\u636e\u7ba1\u9053\u3002<\/li>\n<li>\u5b9e\u65f6\u89c6\u56fe\u00a0: \u5728\u6b64\u89c6\u56fe\u4e0a\u7684\u67e5\u8be2\u5c06\u67e5\u770b\u67d0\u4e2a\u589e\u91cf\u63d0\u4ea4\u64cd\u4f5c\u4e2d\u6570\u636e\u96c6\u7684\u6700\u65b0\u5feb\u7167\u3002\u8be5\u89c6\u56fe\u901a\u8fc7\u52a8\u6001\u5408\u5e76\u6700\u65b0\u7684\u57fa\u672c\u6587\u4ef6(\u4f8b\u5982parquet)\u548c\u589e\u91cf\u6587\u4ef6(\u4f8b\u5982avro)\u6765\u63d0\u4f9b\u8fd1\u5b9e\u65f6\u6570\u636e\u96c6\uff08\u51e0\u5206\u949f\u7684\u5ef6\u8fdf\uff09\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u8868\u603b\u7ed3\u4e86\u4e0d\u540c\u89c6\u56fe\u4e4b\u95f4\u7684\u6743\u8861\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6743\u8861<\/th>\n<th>\u8bfb\u4f18\u5316<\/th>\n<th>\u5b9e\u65f6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6570\u636e\u5ef6\u8fdf<\/td>\n<td>\u66f4\u9ad8<\/td>\n<td>\u66f4\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u67e5\u8be2\u5ef6\u8fdf<\/td>\n<td>\u66f4\u4f4e\uff08\u539f\u59cb\u5217\u5f0f\u6027\u80fd\uff09<\/td>\n<td>\u66f4\u9ad8\uff08\u5408\u5e76\u5217\u5f0f + \u57fa\u4e8e\u884c\u7684\u589e\u91cf\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\\\"copy-on-write-storage\\\" class=\\\"\\\">\u5199\u65f6\u590d\u5236\u5b58\u50a8<span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/h2>\n<p>\u5199\u65f6\u590d\u5236\u5b58\u50a8\u4e2d\u7684\u6587\u4ef6\u7247\u4ec5\u5305\u542b\u57fa\u672c\/\u5217\u6587\u4ef6\uff0c\u5e76\u4e14\u6bcf\u6b21\u63d0\u4ea4\u90fd\u4f1a\u751f\u6210\u65b0\u7248\u672c\u7684\u57fa\u672c\u6587\u4ef6\u3002 \u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u4eec\u538b\u7f29\u6bcf\u4e2a\u63d0\u4ea4\uff0c\u4ece\u800c\u6240\u6709\u7684\u6570\u636e\u90fd\u662f\u4ee5\u5217\u6570\u636e\u7684\u5f62\u5f0f\u50a8\u5b58\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5199\u5165\u6570\u636e\u975e\u5e38\u6602\u8d35\uff08\u6211\u4eec\u9700\u8981\u91cd\u5199\u6574\u4e2a\u5217\u6570\u636e\u6587\u4ef6\uff0c\u5373\u4f7f\u53ea\u6709\u4e00\u4e2a\u5b57\u8282\u7684\u65b0\u6570\u636e\u88ab\u63d0\u4ea4\uff09\uff0c\u800c\u8bfb\u53d6\u6570\u636e\u7684\u6210\u672c\u5219\u6ca1\u6709\u589e\u52a0\u3002 \u8fd9\u79cd\u89c6\u56fe\u6709\u5229\u4e8e\u8bfb\u53d6\u7e41\u91cd\u7684\u5206\u6790\u5de5\u4f5c\u3002<\/p>\n<p>\u4ee5\u4e0b\u5185\u5bb9\u8bf4\u660e\u4e86\u5c06\u6570\u636e\u5199\u5165\u5199\u65f6\u590d\u5236\u5b58\u50a8\u5e76\u5728\u5176\u4e0a\u8fd0\u884c\u4e24\u4e2a\u67e5\u8be2\u65f6\uff0c\u5b83\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u3002<\/p>\n<figure><img class=\\\"docimage\\\" src=\\\"https:\/\/hudi.apache.org\/assets\/images\/hudi_cow.png\\\" alt=\\\"hudi_cow.png\\\" \/><\/figure>\n<p>\u968f\u7740\u6570\u636e\u7684\u5199\u5165\uff0c\u5bf9\u73b0\u6709\u6587\u4ef6\u7ec4\u7684\u66f4\u65b0\u5c06\u4e3a\u8be5\u6587\u4ef6\u7ec4\u751f\u6210\u4e00\u4e2a\u5e26\u6709\u63d0\u4ea4\u5373\u65f6\u65f6\u95f4\u6807\u8bb0\u7684\u65b0\u5207\u7247\uff0c\u800c\u63d2\u5165\u5206\u914d\u4e00\u4e2a\u65b0\u6587\u4ef6\u7ec4\u5e76\u5199\u5165\u8be5\u6587\u4ef6\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5207\u7247\u3002 \u8fd9\u4e9b\u6587\u4ef6\u5207\u7247\u53ca\u5176\u63d0\u4ea4\u5373\u65f6\u65f6\u95f4\u5728\u4e0a\u9762\u7528\u989c\u8272\u7f16\u7801\u3002 \u9488\u5bf9\u8fd9\u6837\u7684\u6570\u636e\u96c6\u8fd0\u884cSQL\u67e5\u8be2\uff08\u4f8b\u5982\uff1aselect count(*)\u7edf\u8ba1\u8be5\u5206\u533a\u4e2d\u7684\u8bb0\u5f55\u6570\u76ee\uff09\uff0c\u9996\u5148\u68c0\u67e5\u65f6\u95f4\u8f74\u4e0a\u7684\u6700\u65b0\u63d0\u4ea4\u5e76\u8fc7\u6ee4\u6bcf\u4e2a\u6587\u4ef6\u7ec4\u4e2d\u9664\u6700\u65b0\u6587\u4ef6\u7247\u4ee5\u5916\u7684\u6240\u6709\u6587\u4ef6\u7247\u3002 \u5982\u60a8\u6240\u89c1\uff0c\u65e7\u67e5\u8be2\u4e0d\u4f1a\u770b\u5230\u4ee5\u7c89\u7ea2\u8272\u6807\u8bb0\u7684\u5f53\u524d\u8fdb\u884c\u4e2d\u7684\u63d0\u4ea4\u7684\u6587\u4ef6\uff0c\u4f46\u662f\u5728\u8be5\u63d0\u4ea4\u540e\u7684\u65b0\u67e5\u8be2\u4f1a\u83b7\u53d6\u65b0\u6570\u636e\u3002\u56e0\u6b64\uff0c\u67e5\u8be2\u4e0d\u53d7\u4efb\u4f55\u5199\u5165\u5931\u8d25\/\u90e8\u5206\u5199\u5165\u7684\u5f71\u54cd\uff0c\u4ec5\u8fd0\u884c\u5728\u5df2\u63d0\u4ea4\u6570\u636e\u4e0a\u3002<\/p>\n<p>\u5199\u65f6\u590d\u5236\u5b58\u50a8\u7684\u76ee\u7684\u662f\u4ece\u6839\u672c\u4e0a\u6539\u5584\u5f53\u524d\u7ba1\u7406\u6570\u636e\u96c6\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u6765\u5b9e\u73b0<\/p>\n<ul>\n<li>\u4f18\u5148\u652f\u6301\u5728\u6587\u4ef6\u7ea7\u539f\u5b50\u66f4\u65b0\u6570\u636e\uff0c\u800c\u65e0\u9700\u91cd\u5199\u6574\u4e2a\u8868\/\u5206\u533a<\/li>\n<li>\u80fd\u591f\u53ea\u8bfb\u53d6\u66f4\u65b0\u7684\u90e8\u5206\uff0c\u800c\u4e0d\u662f\u8fdb\u884c\u4f4e\u6548\u7684\u626b\u63cf\u6216\u641c\u7d22<\/li>\n<li>\u4e25\u683c\u63a7\u5236\u6587\u4ef6\u5927\u5c0f\u6765\u4fdd\u6301\u51fa\u8272\u7684\u67e5\u8be2\u6027\u80fd\uff08\u5c0f\u7684\u6587\u4ef6\u4f1a\u4e25\u91cd\u635f\u5bb3\u67e5\u8be2\u6027\u80fd\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\\\"merge-on-read-storage\\\" class=\\\"active\\\">\u8bfb\u65f6\u5408\u5e76\u5b58\u50a8<a class=\\\"header-link\\\" title=\\\"Permalink\\\" href=\\\"https:\/\/hudi.apache.org\/cn\/docs\/concepts.html#merge-on-read-storage\\\"><span class=\\\"sr-only\\\">Permalink<\/span><i class=\\\"fa fa-link\\\"><\/i><\/a><\/h2>\n<p>\u8bfb\u65f6\u5408\u5e76\u5b58\u50a8\u662f\u5199\u65f6\u590d\u5236\u7684\u5347\u7ea7\u7248\uff0c\u4ece\u67d0\u79cd\u610f\u4e49\u4e0a\u8bf4\uff0c\u5b83\u4ecd\u7136\u53ef\u4ee5\u901a\u8fc7\u8bfb\u4f18\u5316\u8868\u63d0\u4f9b\u6570\u636e\u96c6\u7684\u8bfb\u53d6\u4f18\u5316\u89c6\u56fe\uff08\u5199\u65f6\u590d\u5236\u7684\u529f\u80fd\uff09\u3002 \u6b64\u5916\uff0c\u5b83\u5c06\u6bcf\u4e2a\u6587\u4ef6\u7ec4\u7684\u66f4\u65b0\u63d2\u5165\u5b58\u50a8\u5230\u57fa\u4e8e\u884c\u7684\u589e\u91cf\u65e5\u5fd7\u4e2d\uff0c\u901a\u8fc7\u6587\u4ef6id\uff0c\u5c06\u589e\u91cf\u65e5\u5fd7\u548c\u6700\u65b0\u7248\u672c\u7684\u57fa\u672c\u6587\u4ef6\u8fdb\u884c\u5408\u5e76\uff0c\u4ece\u800c\u63d0\u4f9b\u8fd1\u5b9e\u65f6\u7684\u6570\u636e\u67e5\u8be2\u3002\u56e0\u6b64\uff0c\u6b64\u5b58\u50a8\u7c7b\u578b\u667a\u80fd\u5730\u5e73\u8861\u4e86\u8bfb\u548c\u5199\u7684\u6210\u672c\uff0c\u4ee5\u63d0\u4f9b\u8fd1\u4e4e\u5b9e\u65f6\u7684\u67e5\u8be2\u3002 \u8fd9\u91cc\u6700\u91cd\u8981\u7684\u4e00\u70b9\u662f\u538b\u7f29\u5668\uff0c\u5b83\u73b0\u5728\u53ef\u4ee5\u4ed4\u7ec6\u6311\u9009\u9700\u8981\u538b\u7f29\u5230\u5176\u5217\u5f0f\u57fa\u7840\u6587\u4ef6\u4e2d\u7684\u589e\u91cf\u65e5\u5fd7\uff08\u6839\u636e\u589e\u91cf\u65e5\u5fd7\u7684\u6587\u4ef6\u5927\u5c0f\uff09\uff0c\u4ee5\u4fdd\u6301\u67e5\u8be2\u6027\u80fd\uff08\u8f83\u5927\u7684\u589e\u91cf\u65e5\u5fd7\u5c06\u4f1a\u63d0\u5347\u8fd1\u5b9e\u65f6\u7684\u67e5\u8be2\u65f6\u95f4\uff0c\u5e76\u540c\u65f6\u9700\u8981\u66f4\u957f\u7684\u5408\u5e76\u65f6\u95f4\uff09\u3002<\/p>\n<p>\u4ee5\u4e0b\u5185\u5bb9\u8bf4\u660e\u4e86\u5b58\u50a8\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u5e76\u663e\u793a\u4e86\u5bf9\u8fd1\u5b9e\u65f6\u8868\u548c\u8bfb\u4f18\u5316\u8868\u7684\u67e5\u8be2\u3002<\/p>\n<figure><img class=\\\"docimage\\\" src=\\\"https:\/\/hudi.apache.org\/assets\/images\/hudi_mor.png\\\" alt=\\\"hudi_mor.png\\\" 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&raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","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":[116],"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":"Apache 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