{"id":154744,"date":"2020-09-15T14:13:53","date_gmt":"2020-09-15T06:13:53","guid":{"rendered":"http:\/\/4563.org\/?p=154744"},"modified":"2020-09-15T14:13:53","modified_gmt":"2020-09-15T06:13:53","slug":"%e6%b5%85%e8%b0%88flink%e7%9a%84checkpoint%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=154744","title":{"rendered":"\u6d45\u8c08Flink\u7684checkPoint\u673a\u5236"},"content":{"rendered":"<h2><a href=\"https:\/\/www.studytime.xin\/article\/#checkPoint\u57fa\u672c\u6982\u5ff5\" title=\"checkPoint\u57fa\u672c\u6982\u5ff5\"><\/a>checkPoint\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u4e3a\u4e86\u4fdd\u8bc1state\u7684\u5bb9\u9519\u6027\uff0cFlink\u9700\u8981\u5bf9state\u8fdb\u7a0bcheckPoint\u3002<br \/>Checkpoint\u662fFlink\u5b9e\u73b0\u5bb9\u9519\u673a\u5236\u6700\u6838\u5fc3\u7684\u529f\u80fd\uff0c\u5b83\u80fd\u591f\u6839\u636e\u914d\u7f6e\u5468\u671f\u6027\u5730\u57fa\u4e8eStream\u4e2d\u5404\u4e2aOperator\/task\u7684\u72b6\u6001\u6765\u751f\u6210\u5feb\u7167\uff0c\u4ece\u800c\u5c06\u8fd9\u4e9b\u72b6\u6001\u6570\u636e\u5b9a\u671f\u6301\u4e45\u5316\u5b58\u50a8\u4e0b\u6765\uff0c\u5f53Flink\u7a0b\u5e8f\u4e00\u65e6\u610f\u5916\u5d29\u6e83\u65f6\uff0c\u91cd\u65b0\u8fd0\u884c\u7a0b\u5e8f\u65f6\u53ef\u4ee5\u6709\u9009\u62e9\u5730\u4ece\u8fd9\u4e9b\u5feb\u7167\u8fdb\u884c\u6062\u590d\uff0c\u4ece\u800c\u4fee\u6b63\u56e0\u4e3a\u6545\u969c\u5e26\u6765\u7684\u7a0b\u5e8f\u6570\u636e\u5f02\u5e38\u3002<\/p>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#checkPoint\u6b65\u9aa4\" title=\"checkPoint\u6b65\u9aa4\"><\/a>checkPoint\u6b65\u9aa4<\/h3>\n<ul>\n<li>\u6682\u505c\u65b0\u6570\u636e\u7684\u8f93\u5165<\/li>\n<li>\u7b49\u5f85\u6d41\u4e2don-the-fly\u7684\u6570\u636e\u88ab\u5904\u7406\u5e72\u51c0\uff0c\u6b64\u65f6\u5f97\u5230flink graph\u7684\u4e00\u4e2asnapshot<\/li>\n<li>\u5c06\u6240\u6709Task\u4e2d\u7684State\u62f7\u8d1d\u5230State Backend\u4e2d\uff0c\u5982HDFS\u3002\u6b64\u52a8\u4f5c\u7531\u5404\u4e2aTask Manager\u5b8c\u6210<\/li>\n<li>\u5404\u4e2aTask Manager\u5c06Task State\u7684\u4f4d\u7f6e\u4e0a\u62a5\u7ed9Job Manager\uff0c\u5b8c\u6210checkpoint<\/li>\n<li>\u6062\u590d\u6570\u636e\u7684\u8f93\u5165<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#\u5982\u4f55\u8bbe\u7f6e\u914d\u7f6echeckPoint\" title=\"\u5982\u4f55\u8bbe\u7f6e\u914d\u7f6echeckPoint\"><\/a>\u5982\u4f55\u8bbe\u7f6e\u914d\u7f6echeckPoint<\/h3>\n<p>\u9ed8\u8ba4checkpoint\u529f\u80fd\u662fdisabled\u7684\uff0c\u60f3\u8981\u4f7f\u7528\u7684\u65f6\u5019\u9700\u8981\u5148\u542f\u7528\u3002<br \/>checkpoint\u5f00\u542f\u4e4b\u540e\uff0c\u9ed8\u8ba4\u7684checkPointMode\u662fExactly-once<br \/>checkpoint\u7684checkPointMode\u6709\u4e24\u79cd\uff1a<\/p>\n<ul>\n<li>Exactly-once: \u6570\u636e\u5904\u7406\u4e14\u53ea\u88ab\u5904\u7406\u4e00\u6b21<\/li>\n<li>At-least-once\uff1a\u6570\u636e\u81f3\u5c11\u88ab\u5904\u7406\u4e00\u6b21<br \/>Exactly-once\u5bf9\u4e8e\u5927\u591a\u6570\u5e94\u7528\u6765\u8bf4\u662f\u6700\u5408\u9002\u7684\u3002At-least-once\u53ef\u80fd\u7528\u5728\u67d0\u4e9b\u5ef6\u8fdf\u8d85\u4f4e\u7684\u5e94\u7528\u7a0b\u5e8f\uff08\u59cb\u7ec8\u5ef6\u8fdf\u4e3a\u51e0\u6beb\u79d2\uff09<\/li>\n<\/ul>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><span>8<\/span><br><span>9<\/span><br><span>10<\/span><br><span>11<\/span><br><span>12<\/span><br><span>13<\/span><br><span>14<\/span><br><span>15<\/span><br><span>16<\/span><br><span>17<\/span><br><span>18<\/span><br><span>19<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span><span>\/\/ \u6bcf\u96941000 ms\u8fdb\u884c\u542f\u52a8\u4e00\u4e2a\u68c0\u67e5\u70b9\u3010\u8bbe\u7f6echeckpoint\u7684\u5468\u671f\u3011<\/span><\/span><br><span>environment.enableCheckpointing(<span>1000<\/span>);<\/span><br><span><\/span><br><span><span>\/\/ \u9ad8\u7ea7\u9009\u9879\uff1a<\/span><\/span><br><span><span>\/\/ \u8bbe\u7f6e\u6a21\u5f0f\u4e3aexactly-once \uff08\u8fd9\u662f\u9ed8\u8ba4\u503c\uff09<\/span><\/span><br><span>environment.getCheckpointConfig.setCheckpointingMode(<span>CheckpointingMode<\/span>.<span>EXACTLY_ONCE<\/span>);<\/span><br><span><span>\/\/ \u786e\u4fdd\u68c0\u67e5\u70b9\u4e4b\u95f4\u6709\u81f3\u5c11500 ms\u7684\u95f4\u9694\u3010checkpoint\u6700\u5c0f\u95f4\u9694\u3011<\/span><\/span><br><span>environment.getCheckpointConfig.setMinPauseBetweenCheckpoints(<span>500<\/span>);<\/span><br><span><span>\/\/ \u68c0\u67e5\u70b9\u5fc5\u987b\u5728\u4e00\u5206\u949f\u5185\u5b8c\u6210\uff0c\u6216\u8005\u88ab\u4e22\u5f03\u3010checkpoint\u7684\u8d85\u65f6\u65f6\u95f4\u3011<\/span><\/span><br><span>environment.getCheckpointConfig.setCheckpointTimeout(<span>60000<\/span>);<\/span><br><span><span>\/\/ \u540c\u4e00\u65f6\u95f4\u53ea\u5141\u8bb8\u8fdb\u884c\u4e00\u4e2a\u68c0\u67e5\u70b9<\/span><\/span><br><span>environment.getCheckpointConfig.setMaxConcurrentCheckpoints(<span>1<\/span>);<\/span><br><span><span>\/\/ \u8868\u793a\u4e00\u65e6Flink\u5904\u7406\u7a0b\u5e8f\u88abcancel\u540e\uff0c\u4f1a\u4fdd\u7559Checkpoint\u6570\u636e\uff0c\u4ee5\u4fbf\u6839\u636e\u5b9e\u9645\u9700\u8981\u6062\u590d\u5230\u6307\u5b9a\u7684Checkpoint\u3010\u8be6\u7ec6\u89e3\u91ca\u89c1\u5907\u6ce8\u3011<\/span><\/span><br><span><\/span><br><span><span>\/**<\/span><\/span><br><span><span>  * ExternalizedCheckpointCleanup.RETAIN_ON_CANCELLATION:\u8868\u793a\u4e00\u65e6Flink\u5904\u7406\u7a0b\u5e8f\u88abcancel\u540e\uff0c\u4f1a\u4fdd\u7559Checkpoint\u6570\u636e\uff0c\u4ee5\u4fbf\u6839\u636e\u5b9e\u9645\u9700\u8981\u6062\u590d\u5230\u6307\u5b9a\u7684Checkpoint<\/span><\/span><br><span><span>  * ExternalizedCheckpointCleanup.DELETE_ON_CANCELLATION: \u8868\u793a\u4e00\u65e6Flink\u5904\u7406\u7a0b\u5e8f\u88abcancel\u540e\uff0c\u4f1a\u5220\u9664Checkpoint\u6570\u636e\uff0c\u53ea\u6709job\u6267\u884c\u5931\u8d25\u7684\u65f6\u5019\u624d\u4f1a\u4fdd\u5b58checkpoint<\/span><\/span><br><span><span>  *\/<\/span><\/span><br><span>environment.getCheckpointConfig.enableExternalizedCheckpoints(<span>ExternalizedCheckpointCleanup<\/span>.<span>RETAIN_ON_CANCELLATION<\/span>);<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#Flink\u91cd\u542f\u7b56\u7565\u6982\u8ff0\" title=\"Flink\u91cd\u542f\u7b56\u7565\u6982\u8ff0\"><\/a>Flink\u91cd\u542f\u7b56\u7565\u6982\u8ff0<\/h3>\n<p>Flink\u652f\u6301\u4e0d\u540c\u7684\u91cd\u542f\u7b56\u7565\uff0c\u4ee5\u5728\u6545\u969c\u53d1\u751f\u65f6\u63a7\u5236\u4f5c\u4e1a\u5982\u4f55\u91cd\u542f\uff0c\u96c6\u7fa4\u5728\u542f\u52a8\u65f6\u4f1a\u4f34\u968f\u4e00\u4e2a\u9ed8\u8ba4\u7684\u91cd\u542f\u7b56\u7565\uff0c\u5728\u6ca1\u6709\u5b9a\u4e49\u5177\u4f53\u91cd\u542f\u7b56\u7565\u65f6\u4f1a\u4f7f\u7528\u8be5\u9ed8\u8ba4\u7b56\u7565\u3002<\/p>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#Flink-\u91cd\u542f\u7b56\u7565\u5b9e\u73b0\" title=\"Flink \u91cd\u542f\u7b56\u7565\u5b9e\u73b0\"><\/a>Flink \u91cd\u542f\u7b56\u7565\u5b9e\u73b0<\/h3>\n<p>\u5982\u679c\u5728\u5de5\u4f5c\u63d0\u4ea4\u65f6\u6307\u5b9a\u4e86\u4e00\u4e2a\u91cd\u542f\u7b56\u7565\uff0c\u8be5\u7b56\u7565\u4f1a\u8986\u76d6\u96c6\u7fa4\u7684\u9ed8\u8ba4\u7b56\u7565\uff0c\u9ed8\u8ba4\u7684\u91cd\u542f\u7b56\u7565\u53ef\u4ee5\u901a\u8fc7 Flink \u7684\u914d\u7f6e\u6587\u4ef6 flink-conf.yaml \u6307\u5b9a\u3002\u914d\u7f6e\u53c2\u6570 restart-strategy \u5b9a\u4e49\u4e86\u54ea\u4e2a\u7b56\u7565\u88ab\u4f7f\u7528\u3002<\/p>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u5e38\u7528\u7684\u91cd\u542f\u7b56\u7565\" title=\"\u5e38\u7528\u7684\u91cd\u542f\u7b56\u7565\"><\/a>\u5e38\u7528\u7684\u91cd\u542f\u7b56\u7565<\/h4>\n<ul>\n<li>\uff081\uff09\u56fa\u5b9a\u95f4\u9694 (Fixed delay)<\/li>\n<li>\uff082\uff09\u5931\u8d25\u7387 (Failure rate)<\/li>\n<li>\uff083\uff09\u65e0\u91cd\u542f (No restart)<br \/>\u5982\u679c\u6ca1\u6709\u542f\u7528 checkpointing\uff0c\u5219\u4f7f\u7528\u65e0\u91cd\u542f (no restart) \u7b56\u7565\u3002<br \/>\u5982\u679c\u542f\u7528\u4e86 checkpointing\uff0c\u91cd\u542f\u7b56\u7565\u53ef\u4ee5\u5728<code>flink-conf.yaml<\/code>\u4e2d\u914d\u7f6e\uff0c\u8868\u793a\u5168\u5c40\u7684\u914d\u7f6e\u3002\u4e5f\u53ef\u4ee5\u5728\u5e94\u7528\u4ee3\u7801\u4e2d\u52a8\u6001\u6307\u5b9a\uff0c\u4f1a\u8986\u76d6\u5168\u5c40\u914d\u7f6e<br \/>\u4f46\u6ca1\u6709\u914d\u7f6e\u91cd\u542f\u7b56\u7565\uff0c\u5219\u4f7f\u7528\u56fa\u5b9a\u95f4\u9694 (fixed-delay) \u7b56\u7565\uff0c \u5c1d\u8bd5\u91cd\u542f\u6b21\u6570\u9ed8\u8ba4\u503c\u662f\uff1aInteger.MAX_VALUE\u3002<\/li>\n<\/ul>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u56fa\u5b9a\u95f4\u9694-Fixed-delay\" title=\"\u56fa\u5b9a\u95f4\u9694 (Fixed delay)\"><\/a>\u56fa\u5b9a\u95f4\u9694 (Fixed delay)<\/h4>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>\u7b2c\u4e00\u79cd\uff1a\u5168\u5c40\u914d\u7f6e flink-conf.yaml<\/span><br><span>restart-strategy: fixed-delay<\/span><br><span>restart-strategy.fixed-delay.attempts: 3<\/span><br><span>restart-strategy.fixed-delay.delay: 10 s<\/span><br><span><\/span><br><span>\u7b2c\u4e8c\u79cd\uff1a\u5e94\u7528\u4ee3\u7801\u8bbe\u7f6e,\u91cd\u542f\u6b21\u6570\u3001\u91cd\u542f\u65f6\u95f4\u95f4\u9694<\/span><br><span>environment.setRestartStrategy(RestartStrategies.fixedDelayRestart(5,10000))<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u5931\u8d25\u7387-Failure-rate\" title=\"\u5931\u8d25\u7387 (Failure rate)\"><\/a>\u5931\u8d25\u7387 (Failure rate)<\/h4>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><span>8<\/span><br><span>9<\/span><br><span>10<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>\u7b2c\u4e00\u79cd\uff1a\u5168\u5c40\u914d\u7f6e flink-conf.yaml<\/span><br><span>&#x2F;&#x2F;5\u5206\u949f\u5185\u82e5\u5931\u8d25\u4e863\u6b21\u5219\u8ba4\u4e3a\u8be5job\u5931\u8d25\uff0c\u91cd\u8bd5\u95f4\u9694\u4e3a10s<\/span><br><span>restart-strategy: failure-rate<\/span><br><span>restart-strategy.failure-rate.max-failures-per-interval: 3<\/span><br><span>restart-strategy.failure-rate.failure-rate-interval: 5 min<\/span><br><span>restart-strategy.failure-rate.delay: 10 s<\/span><br><span><\/span><br><span><\/span><br><span>\u7b2c\u4e8c\u79cd\uff1a\u5e94\u7528\u4ee3\u7801\u8bbe\u7f6e<\/span><br><span>environment.setRestartStrategy(RestartStrategies.failureRateRestart(20, org.apache.flink.api.common.time.Time.seconds(100), org.apache.flink.api.common.time.Time.seconds(10)))<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u65e0\u91cd\u542f-No-restart\" title=\"\u65e0\u91cd\u542f (No restart)\"><\/a>\u65e0\u91cd\u542f (No restart)<\/h4>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>\u7b2c\u4e00\u79cd\uff1a\u5168\u5c40\u914d\u7f6e flink-conf.yaml<\/span><br><span>restart-strategy: none<\/span><br><span><\/span><br><span>\u7b2c\u4e8c\u79cd\uff1a\u5e94\u7528\u4ee3\u7801\u8bbe\u7f6e<\/span><br><span>environment.setRestartStrategy(RestartStrategies.noRestart())<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#checkPoint\u4fdd\u5b58\u591a\u4e2a\u5386\u53f2\u7248\u672c\uff0c\u6062\u590d\u591a\u4e2a\u7248\u672c\" title=\"checkPoint\u4fdd\u5b58\u591a\u4e2a\u5386\u53f2\u7248\u672c\uff0c\u6062\u590d\u591a\u4e2a\u7248\u672c\"><\/a>checkPoint\u4fdd\u5b58\u591a\u4e2a\u5386\u53f2\u7248\u672c\uff0c\u6062\u590d\u591a\u4e2a\u7248\u672c<\/h3>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u8bbe\u7f6e\u4e86Checkpoint\u9009\u9879\uff0c\u5219Flink\u53ea\u4fdd\u7559\u6700\u8fd1\u6210\u529f\u751f\u6210\u76841\u4e2aCheckpoint\uff0c\u800c\u5f53Flink\u7a0b\u5e8f\u5931\u8d25\u65f6\uff0c\u53ef\u4ee5\u4ece\u6700\u8fd1\u7684\u8fd9\u4e2aCheckpoint\u6765\u8fdb\u884c\u6062\u590d\u3002<br \/>\u5982\u679c\u6211\u4eec\u5e0c\u671b\u4fdd\u7559\u591a\u4e2aCheckpoint\uff0c\u5e76\u80fd\u591f\u6839\u636e\u5b9e\u9645\u9700\u8981==\u9009\u62e9\u5176\u4e2d\u4e00\u4e2a\u8fdb\u884c\u6062\u590d==\uff0c\u8fd9\u6837\u4f1a\u66f4\u52a0\u7075\u6d3b\uff0c\u6bd4\u5982\uff0c\u6211\u4eec\u53d1\u73b0\u6700\u8fd14\u4e2a\u5c0f\u65f6\u6570\u636e\u8bb0\u5f55\u5904\u7406\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5c06\u6574\u4e2a\u72b6\u6001\u8fd8\u539f\u52304\u5c0f\u65f6\u4e4b\u524d\u3002<br \/>Flink\u53ef\u4ee5\u652f\u6301\u4fdd\u7559\u591a\u4e2aCheckpoint\uff0c\u9700\u8981\u5728Flink\u7684\u914d\u7f6e\u6587\u4ef6==conf\/flink-conf.yaml==\u4e2d\uff0c\u6dfb\u52a0\u5982\u4e0b\u914d\u7f6e\uff0c\u6307\u5b9a\u6700\u591a\u9700\u8981\u4fdd\u5b58Checkpoint\u7684\u4e2a\u6570\u3002<br \/>\u5982\u679c\u5e0c\u671b\u56de\u9000\u5230\u67d0\u4e2aCheckpoint\u70b9\uff0c\u53ea\u9700\u8981\u6307\u5b9a\u5bf9\u5e94\u7684\u67d0\u4e2aCheckpoint\u8def\u5f84\u5373\u53ef\u5b9e\u73b0<\/p>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>state.checkpoints.num-retained: 20<\/span><br><span><\/span><br><span>\u8fd9\u6837\u8bbe\u7f6e\u4ee5\u540e\u5c31\u67e5\u770b\u5bf9\u5e94\u7684Checkpoint\u5728HDFS\u4e0a\u5b58\u50a8\u7684\u6587\u4ef6\u76ee\u5f55<\/span><br><span>hdfs dfs -ls hdfs:&#x2F;&#x2F;node01:8020&#x2F;flink&#x2F;checkpoints<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#checkPoiny-\u6062\u590d\u5386\u53f2\u67d0\u4e2a\u7248\u672c\" title=\"checkPoiny \u6062\u590d\u5386\u53f2\u67d0\u4e2a\u7248\u672c\"><\/a>checkPoiny \u6062\u590d\u5386\u53f2\u67d0\u4e2a\u7248\u672c<\/h3>\n<p>\u5982\u679cFlink\u7a0b\u5e8f\u5f02\u5e38\u5931\u8d25\uff0c\u6216\u8005\u6700\u8fd1\u4e00\u6bb5\u65f6\u95f4\u5185\u6570\u636e\u5904\u7406\u9519\u8bef\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7a0b\u5e8f\u4ece\u67d0\u4e00\u4e2aCheckpoint\u70b9\u8fdb\u884c\u6062\u590d\u3002<br \/>flink run -m yarn-cluster -yn 2 -yjm 1024 -ytm 1024 -s hdfs:\/\/node01:8020\/fsStateBackend\/971ae7ac4d5f20e704747ea7c549b356\/chk-50\/_metadata -c com.kaikeba.checkpoint.TestCheckPoint original-flink_study-1.0-SNAPSHOT.jar<\/p>\n<h2><a href=\"https:\/\/www.studytime.xin\/article\/#savePoint-\u57fa\u672c\u6982\u5ff5\" title=\"savePoint \u57fa\u672c\u6982\u5ff5\"><\/a>savePoint \u57fa\u672c\u6982\u5ff5<\/h2>\n<p>savePoint\u662f\u68c0\u67e5\u70b9\u4e00\u79cd\u7279\u6b8a\u5b9e\u73b0\uff0c\u5e95\u5c42\u5176\u5b9e\u4e5f\u662f\u4f7f\u7528Checkpoints\u7684\u673a\u5236\u3002<br \/>savePoint\u662f\u7528\u6237\u4ee5\u624b\u5de5\u547d\u4ee4\u7684\u65b9\u5f0f\u89e6\u53d1checkpoint\uff0c\u5e76\u5c06\u7ed3\u679c\u6301\u4e45\u5316\u5230\u6307\u5b9a\u7684\u5b58\u50a8\u76ee\u5f55\u4e2d\u3002<\/p>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#savePoint-\u4f7f\u7528\u573a\u666f\" title=\"savePoint \u4f7f\u7528\u573a\u666f\"><\/a>savePoint \u4f7f\u7528\u573a\u666f<\/h3>\n<ul>\n<li>1\u3001\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u5347\u7ea7\n<ul>\n<li>\u901a\u8fc7\u89e6\u53d1\u4fdd\u5b58\u70b9\u5e76\u4ece\u8be5\u4fdd\u5b58\u70b9\u5904\u8fd0\u884c\u65b0\u7248\u672c\uff0c\u4e0b\u6e38\u7684\u5e94\u7528\u7a0b\u5e8f\u5e76\u4e0d\u4f1a\u5bdf\u89c9\u5230\u4e0d\u540c<\/li>\n<\/ul>\n<\/li>\n<li>2\u3001Flink\u7248\u672c\u66f4\u65b0\n<ul>\n<li>Flink \u81ea\u8eab\u7684\u66f4\u65b0\u4e5f\u53d8\u5f97\u7b80\u5355\uff0c\u56e0\u4e3a\u53ef\u4ee5\u9488\u5bf9\u6b63\u5728\u8fd0\u884c\u7684\u4efb\u52a1\u89e6\u53d1\u4fdd\u5b58\u70b9\uff0c\u5e76\u4ece\u4fdd\u5b58\u70b9\u5904\u7528\u65b0\u7248\u672c\u7684 Flink \u91cd\u542f\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>3\u3001\u7ef4\u62a4\u548c\u8fc1\u79fb\n<ul>\n<li>\u4f7f\u7528\u4fdd\u5b58\u70b9\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u201c\u6682\u505c\u548c\u6062\u590d\u201d\u5e94\u7528\u7a0b\u5e8f   <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#savePoint\u7684\u4f7f\u7528\" title=\"savePoint\u7684\u4f7f\u7528\"><\/a>savePoint\u7684\u4f7f\u7528<\/h3>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u5728flink-conf-yaml\u4e2d\u914d\u7f6eSavepoint\u5b58\u50a8\u4f4d\u7f6e\" title=\"\u5728flink-conf.yaml\u4e2d\u914d\u7f6eSavepoint\u5b58\u50a8\u4f4d\u7f6e\"><\/a>\u5728flink-conf.yaml\u4e2d\u914d\u7f6eSavepoint\u5b58\u50a8\u4f4d\u7f6e<\/h4>\n<p>\u4e0d\u662f\u5fc5\u987b\u8bbe\u7f6e\uff0c\u4f46\u662f\u8bbe\u7f6e\u540e\uff0c\u540e\u9762\u521b\u5efa\u6307\u5b9aJob\u7684Savepoint\u65f6\uff0c\u53ef\u4ee5\u4e0d\u7528\u5728\u624b\u52a8\u6267\u884c\u547d\u4ee4\u65f6\u6307\u5b9aSavepoint\u7684\u4f4d\u7f6e<\/p>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>state.savepoints.dir: hdfs:&#x2F;&#x2F;node01:8020&#x2F;flink&#x2F;savepoints<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h4><a href=\"https:\/\/www.studytime.xin\/article\/#\u89e6\u53d1\u4e00\u4e2asavepoint\" title=\"\u89e6\u53d1\u4e00\u4e2asavepoint\"><\/a>\u89e6\u53d1\u4e00\u4e2asavepoint<\/h4>\n<h5><a href=\"https:\/\/www.studytime.xin\/article\/#\u624b\u52a8\u89e6\u53d1savepoint\" title=\"\u624b\u52a8\u89e6\u53d1savepoint\"><\/a>\u624b\u52a8\u89e6\u53d1savepoint<\/h5>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><span>8<\/span><br><span>9<\/span><br><span>10<\/span><br><span>11<\/span><br><span>12<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>#\u3010\u9488\u5bf9on standAlone\u6a21\u5f0f\u3011<\/span><br><span>bin&#x2F;flink savepoint jobId [targetDirectory] <\/span><br><span><\/span><br><span>#\u3010\u9488\u5bf9on yarn\u6a21\u5f0f\u9700\u8981\u6307\u5b9a-yid\u53c2\u6570\u3011<\/span><br><span>bin&#x2F;flink savepoint jobId [targetDirectory] [-yid yarnAppId]<\/span><br><span><\/span><br><span>#jobId \t\t\t\t\u9700\u8981\u89e6\u53d1savepoint\u7684jobId\u7f16\u53f7<\/span><br><span>#targetDirectory     \u6307\u5b9asavepoint\u5b58\u50a8\u6570\u636e\u76ee\u5f55<\/span><br><span>#-yid                \u6307\u5b9ayarnAppId <\/span><br><span><\/span><br><span>##\u4f8b\u5982\uff1a<\/span><br><span>flink savepoint 8d1bb7f88a486815f9b9cf97c304885b  -yid application_1594807273214_0004<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h5><a href=\"https:\/\/www.studytime.xin\/article\/#\u53d6\u6d88\u4efb\u52a1\u5e76\u624b\u52a8\u89e6\u53d1savepoint\" title=\"\u53d6\u6d88\u4efb\u52a1\u5e76\u624b\u52a8\u89e6\u53d1savepoint\"><\/a>\u53d6\u6d88\u4efb\u52a1\u5e76\u624b\u52a8\u89e6\u53d1savepoint<\/h5>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><span>8<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>##\u3010\u9488\u5bf9on standAlone\u6a21\u5f0f\u3011<\/span><br><span>bin&#x2F;flink cancel -s [targetDirectory] jobId <\/span><br><span><\/span><br><span>##\u3010\u9488\u5bf9on yarn\u6a21\u5f0f\u9700\u8981\u6307\u5b9a-yid\u53c2\u6570\u3011<\/span><br><span>bin&#x2F;flink cancel -s [targetDirectory] jobId [-yid yarnAppId]<\/span><br><span><\/span><br><span>##\u4f8b\u5982\uff1a<\/span><br><span>flink cancel 8d1bb7f88a486815f9b9cf97c304885b -yid application_1594807273214_0004<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h5><a href=\"https:\/\/www.studytime.xin\/article\/#\u4ece\u6307\u5b9a\u7684savepoint\u542f\u52a8job\" title=\"\u4ece\u6307\u5b9a\u7684savepoint\u542f\u52a8job\"><\/a>\u4ece\u6307\u5b9a\u7684savepoint\u542f\u52a8job<\/h5>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>bin&#x2F;flink run -s savepointPath [runArgs]<\/span><br><span><\/span><br><span>##\u4f8b\u5982\uff1a<\/span><br><span>flink run -m yarn-cluster -yn 2 -yjm 1024 -ytm 1024 -s hdfs:&#x2F;&#x2F;node01:8020&#x2F;flink&#x2F;savepoints&#x2F;savepoint-8d1bb7-c9187993ca94 -c com.kaikeba.checkpoint.TestCheckPoint original-flink_study-1.0-SNAPSHOT.jar<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<h5><a href=\"https:\/\/www.studytime.xin\/article\/#\u6e05\u9664savepoint\u6570\u636e\" title=\"\u6e05\u9664savepoint\u6570\u636e\"><\/a>\u6e05\u9664savepoint\u6570\u636e<\/h5>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>bin&#x2F;flink savepoint -d savepointPath<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>checkPoint\u57fa\u672c\u6982\u5ff5 \u4e3a\u4e86&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/154744"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=154744"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/154744\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=154744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=154744"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=154744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}