{"id":38681,"date":"2025-05-21T07:21:01","date_gmt":"2025-05-20T23:21:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38681.html"},"modified":"2025-05-21T07:21:01","modified_gmt":"2025-05-20T23:21:01","slug":"java%e5%88%86%e5%b8%83%e5%bc%8f%e4%bb%bb%e5%8a%a1%e8%b0%83%e5%ba%a6%e4%ba%a4%e5%93%8d%e4%b9%90%ef%bc%9a%e7%94%a8%e4%bb%a3%e7%a0%81%e6%8c%87%e6%8c%a5%e5%8d%83%e5%8f%b0%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38681.html","title":{"rendered":"Java\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\u4ea4\u54cd\u4e50\uff1a\u7528\u4ee3\u7801\u6307\u6325\u5343\u53f0\u670d\u52a1\u5668\u8df3\u8d77\u7cbe\u51c6\u7684\u534e\u5c14\u5179"},"content":{"rendered":"<h4>\u4e00\u3001\u67b6\u6784\u8bbe\u8ba1&#xff1a;\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\u7684\u6307\u6325\u7cfb\u7edf<\/h4>\n<h5>1.1 \u67b6\u6784\u56fe&#xff08;\u7528\u6587\u5b57\u6784\u5efa\u4f60\u7684\u60f3\u8c61&#xff09;<\/h5>\n<p> [\u8c03\u5ea6\u4e2d\u5fc3] \u2192 [\u4efb\u52a1\u8def\u7531] \u2192 [\u6267\u884c\u5668\u96c6\u7fa4]<br \/>\n         \u2191          \u2193<br \/>\n         \u2502          \u2502<br \/>\n         \u251c\u2500\u6570\u636e\u5e93\u5b58\u50a8\u2500\u2524<br \/>\n         \u2502          \u2502<br \/>\n         \u2514\u2500\u76d1\u63a7\u544a\u8b66\u2500\u2518  <\/p>\n<p>\u5173\u952e\u7ec4\u4ef6&#xff1a;<\/p>\n<ul>\n<li>\u8c03\u5ea6\u4e2d\u5fc3&#xff1a;\u4efb\u52a1\u7684&#034;\u603b\u6307\u6325&#034;&#xff0c;\u8d1f\u8d23\u4efb\u52a1\u6ce8\u518c\u3001\u8c03\u5ea6\u3001\u72b6\u6001\u76d1\u63a7<\/li>\n<li>\u6267\u884c\u5668\u96c6\u7fa4&#xff1a;\u4efb\u52a1\u7684&#034;\u821e\u56e2&#034;&#xff0c;\u6bcf\u4e2a\u8282\u70b9\u90fd\u662f\u6f5c\u5728\u7684\u8868\u6f14\u8005<\/li>\n<li>\u4efb\u52a1\u8def\u7531&#xff1a;\u52a8\u6001\u5206\u914d\u4efb\u52a1\u7684&#034;\u4ea4\u901a\u8c03\u5ea6\u7cfb\u7edf&#034;<\/li>\n<li>\u6570\u636e\u5e93\u5b58\u50a8&#xff1a;\u4efb\u52a1\u5143\u6570\u636e\u7684&#034;\u8bb0\u5206\u724c&#034;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e8c\u3001\u6838\u5fc3\u6280\u672f\u5b9e\u73b0&#xff1a;\u5206\u5e03\u5f0f\u8c03\u5ea6\u7684\u9b54\u6cd5\u9635<\/h4>\n<h5>2.1 XXL-JOB&#xff1a;\u4f01\u4e1a\u7ea7\u8c03\u5ea6\u6846\u67b6\u7684\u5178\u8303<\/h5>\n<p><span class=\"token comment\">\/\/ XXL-JOB\u6267\u884c\u5668\u914d\u7f6e&#xff08;application.yml&#xff09;  <\/span><br \/>\nxxl<span class=\"token operator\">:<\/span><br \/>\n  job<span class=\"token operator\">:<\/span><br \/>\n    admin<span class=\"token operator\">:<\/span><br \/>\n      addresses<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;http:\/\/localhost:8888\/xxl-job-admin&#034;<\/span> # \u8c03\u5ea6\u4e2d\u5fc3\u5730\u5740<br \/>\n    executor<span class=\"token operator\">:<\/span><br \/>\n      appname<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;video-transcode-executor&#034;<\/span> # \u6267\u884c\u5668\u540d\u79f0<br \/>\n      ip<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;&#034;<\/span> # \u81ea\u52a8\u83b7\u53d6<br \/>\n      port<span class=\"token operator\">:<\/span> <span class=\"token number\">9999<\/span> # \u6267\u884c\u5668\u670d\u52a1\u7aef\u53e3<br \/>\n      logpath<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;\/data\/applogs\/xxl-job\/jobhandler&#034;<\/span> # \u65e5\u5fd7\u8def\u5f84<br \/>\n      logretentiondays<span class=\"token operator\">:<\/span> <span class=\"token number\">30<\/span> # \u65e5\u5fd7\u4fdd\u7559\u5929\u6570  <\/p>\n<p>\u6ce8\u91ca\u54f2\u5b66&#xff1a;<\/p>\n<ul>\n<li>appname&#xff1a;\u6267\u884c\u5668\u5728\u8c03\u5ea6\u4e2d\u5fc3\u7684\u552f\u4e00\u8eab\u4efd\u8bc1<\/li>\n<li>logretentiondays&#xff1a;\u65e5\u5fd7\u6e05\u7406\u7b56\u7565&#xff0c;\u9632\u6b62\u78c1\u76d8\u7206\u70b8<\/li>\n<\/ul>\n<hr \/>\n<h5>2.2 PowerJob&#xff1a;\u65b0\u4e00\u4ee3\u5206\u5e03\u5f0f\u8c03\u5ea6\u7684\u625b\u9f0e\u4e4b\u4f5c<\/h5>\n<p><span class=\"token comment\">\/\/ PowerJob\u914d\u7f6e&#xff08;application.yml&#xff09;  <\/span><br \/>\npowerjob<span class=\"token operator\">:<\/span><br \/>\n  server<span class=\"token operator\">:<\/span><br \/>\n    address<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;localhost:8080&#034;<\/span> # \u8c03\u5ea6\u4e2d\u5fc3\u5730\u5740<br \/>\n  worker<span class=\"token operator\">:<\/span><br \/>\n    name<span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;video-transcode-worker&#034;<\/span> # \u5de5\u4f5c\u8282\u70b9\u540d\u79f0<br \/>\n    processor<span class=\"token operator\">&#8211;<\/span>threads<span class=\"token operator\">:<\/span> <span class=\"token number\">20<\/span> # \u5904\u7406\u5668\u7ebf\u7a0b\u6570<br \/>\n    enable<span class=\"token operator\">&#8211;<\/span>dynamic<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span> # \u52a8\u6001\u5206\u7247\u652f\u6301  <\/p>\n<p>\u6280\u672f\u5f69\u86cb&#xff1a;<\/p>\n<ul>\n<li>enable-dynamic&#xff1a;\u5f00\u542f\u52a8\u6001\u5206\u7247&#xff0c;\u50cf\u53d8\u9b54\u672f\u822c\u8c03\u6574\u4efb\u52a1\u7c92\u5ea6<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e09\u3001\u4ee3\u7801\u5b9e\u6218&#xff1a;\u4ece\u4efb\u52a1\u5b9a\u4e49\u5230\u5206\u5e03\u5f0f\u6267\u884c<\/h4>\n<h5>3.1 Quartz\u96c6\u7fa4\u5316\u6539\u9020&#xff08;\u8ba9\u95f9\u949f\u53d8\u6210\u4ea4\u54cd\u4e50&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ Quartz\u96c6\u7fa4\u914d\u7f6e&#xff08;application.yml&#xff09;  <\/span><br \/>\nspring<span class=\"token operator\">:<\/span><br \/>\n  quartz<span class=\"token operator\">:<\/span><br \/>\n    properties<span class=\"token operator\">:<\/span><br \/>\n      org<span class=\"token punctuation\">.<\/span>quartz<span class=\"token operator\">:<\/span><br \/>\n        scheduler<span class=\"token operator\">:<\/span><br \/>\n          instanceName<span class=\"token operator\">:<\/span> <span class=\"token class-name\">MyClusterScheduler<\/span> # \u8c03\u5ea6\u5668\u540d\u79f0<br \/>\n          instanceId<span class=\"token operator\">:<\/span> AUTO # \u81ea\u52a8\u5206\u914dID<br \/>\n        jobStore<span class=\"token operator\">:<\/span><br \/>\n          <span class=\"token keyword\">class<\/span><span class=\"token operator\">:<\/span> <span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>quartz<span class=\"token punctuation\">.<\/span>impl<span class=\"token punctuation\">.<\/span>jdbcjobstore<span class=\"token punctuation\">.<\/span><\/span>JobStoreTX<\/span> # \u6570\u636e\u5e93\u5b58\u50a8<br \/>\n          driverDelegateClass<span class=\"token operator\">:<\/span> <span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>quartz<span class=\"token punctuation\">.<\/span>impl<span class=\"token punctuation\">.<\/span>jdbcjobstore<span class=\"token punctuation\">.<\/span><\/span>StdJDBCDelegate<\/span><br \/>\n          tablePrefix<span class=\"token operator\">:<\/span> QRTZ_ # \u8868\u524d\u7f00<br \/>\n        threadPool<span class=\"token operator\">:<\/span><br \/>\n          <span class=\"token keyword\">class<\/span><span class=\"token operator\">:<\/span> <span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>quartz<span class=\"token punctuation\">.<\/span>simpl<span class=\"token punctuation\">.<\/span><\/span>SimpleThreadPool<\/span><br \/>\n          threadCount<span class=\"token operator\">:<\/span> <span class=\"token number\">10<\/span> # \u7ebf\u7a0b\u6c60\u5927\u5c0f<br \/>\n          threadPriority<span class=\"token operator\">:<\/span> <span class=\"token number\">5<\/span><br \/>\n        dataSource<span class=\"token operator\">:<\/span><br \/>\n          myDS<span class=\"token operator\">:<\/span><br \/>\n            driver<span class=\"token operator\">:<\/span> <span class=\"token class-name\"><span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>mysql<span class=\"token punctuation\">.<\/span>cj<span class=\"token punctuation\">.<\/span>jdbc<span class=\"token punctuation\">.<\/span><\/span>Driver<\/span><br \/>\n            URL<span class=\"token operator\">:<\/span> jdbc<span class=\"token operator\">:<\/span>mysql<span class=\"token operator\">:<\/span><span class=\"token operator\">\/<\/span><span class=\"token operator\">\/<\/span>localhost<span class=\"token operator\">:<\/span><span class=\"token number\">3306<\/span><span class=\"token operator\">\/<\/span>quartz_db<br \/>\n            user<span class=\"token operator\">:<\/span> root<br \/>\n            password<span class=\"token operator\">:<\/span> root  <\/p>\n<p>\u96c6\u7fa4\u9b54\u6cd5&#xff1a;<\/p>\n<ul>\n<li>JobStoreTX&#xff1a;\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u5206\u5e03\u5f0f\u9501&#xff0c;\u4fdd\u8bc1\u4efb\u52a1\u552f\u4e00\u6027<\/li>\n<\/ul>\n<hr \/>\n<h5>3.2 XXL-JOB\u5206\u7247\u4efb\u52a1\u5b9e\u6218&#xff08;\u8ba9\u4efb\u52a1\u50cf\u62fc\u56fe\u4e00\u6837\u7075\u6d3b&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ VideoTranscodeJob.java&#xff1a;\u89c6\u9891\u8f6c\u7801\u4efb\u52a1  <\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;XxlJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;videoTranscodeJob&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ReturnT<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DispatchParam<\/span> dispatchParam<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> total <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u603b\u4efb\u52a1\u6570  <\/span><br \/>\n    <span class=\"token keyword\">int<\/span> shardIndex <span class=\"token operator\">&#061;<\/span> dispatchParam<span class=\"token punctuation\">.<\/span><span class=\"token function\">getShardIndex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f53\u524d\u5206\u7247\u7d22\u5f15  <\/span><br \/>\n    <span class=\"token keyword\">int<\/span> shardTotal <span class=\"token operator\">&#061;<\/span> dispatchParam<span class=\"token punctuation\">.<\/span><span class=\"token function\">getShardTotal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5206\u7247\u603b\u6570  <\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5206\u7247\u7b56\u7565&#xff1a;\u53d6\u6a21\u5206\u914d  <\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> shardIndex<span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> total<span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&#043;&#061;<\/span> shardTotal<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> videoId <span class=\"token operator\">&#061;<\/span> videoList<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8f6c\u7801\u903b\u8f91  <\/span><br \/>\n            <span class=\"token function\">transcode<\/span><span class=\"token punctuation\">(<\/span>videoId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">updateStatus<\/span><span class=\"token punctuation\">(<\/span>videoId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;SUCCESS&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">updateStatus<\/span><span class=\"token punctuation\">(<\/span>videoId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;FAILED&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">XxlJobLogger<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1&#034;<\/span> <span class=\"token operator\">&#043;<\/span> videoId <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\u6267\u884c\u5931\u8d25&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">getMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">ReturnT<\/span><span class=\"token punctuation\">.<\/span>SUCCESS<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u5206\u7247\u54f2\u5b66&#xff1a;<\/p>\n<ul>\n<li>shardIndex % shardTotal&#xff1a;\u50cf\u5206\u7cd6\u679c\u4e00\u6837\u5747\u5300\u5206\u914d\u4efb\u52a1<\/li>\n<\/ul>\n<hr \/>\n<h5>3.3 PowerJob DAG\u5de5\u4f5c\u6d41&#xff08;\u8ba9\u4efb\u52a1\u50cf\u4e50\u9ad8\u4e00\u6837\u62fc\u63a5&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ VideoWorkflow.java&#xff1a;\u89c6\u9891\u5904\u7406\u5de5\u4f5c\u6d41  <\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">VideoWorkflow<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Workflow<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">JobGraph<\/span> jobGraph<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b9a\u4e49\u4efb\u52a1\u8282\u70b9  <\/span><br \/>\n        <span class=\"token class-name\">JobNode<\/span> transcodeNode <span class=\"token operator\">&#061;<\/span> jobGraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">addJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;transcodeJob&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TranscodeProcessor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">JobNode<\/span> uploadNode <span class=\"token operator\">&#061;<\/span> jobGraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">addJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;uploadJob&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">UploadProcessor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">JobNode<\/span> notifyNode <span class=\"token operator\">&#061;<\/span> jobGraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">addJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;notifyJob&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">NotifyProcessor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <\/p>\n<p>        <span class=\"token comment\">\/\/ \u5b9a\u4e49\u4f9d\u8d56\u5173\u7cfb  <\/span><br \/>\n        jobGraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">addDependency<\/span><span class=\"token punctuation\">(<\/span>transcodeNode<span class=\"token punctuation\">,<\/span> uploadNode<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f6c\u7801\u540e\u4e0a\u4f20  <\/span><br \/>\n        jobGraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">addDependency<\/span><span class=\"token punctuation\">(<\/span>uploadNode<span class=\"token punctuation\">,<\/span> notifyNode<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ \u4e0a\u4f20\u540e\u901a\u77e5  <\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u91cd\u8bd5\u7b56\u7565  <\/span><br \/>\n        transcodeNode<span class=\"token punctuation\">.<\/span><span class=\"token function\">setRetryTimes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f6c\u7801\u5931\u8d25\u91cd\u8bd53\u6b21  <\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>DAG\u9b54\u6cd5&#xff1a;<\/p>\n<ul>\n<li>addDependency&#xff1a;\u50cf\u642d\u79ef\u6728\u4e00\u6837\u6784\u5efa\u4efb\u52a1\u4f9d\u8d56\u94fe<\/li>\n<\/ul>\n<hr \/>\n<h4>\u56db\u3001\u6027\u80fd\u4f18\u5316&#xff1a;\u8ba9\u4efb\u52a1\u8c03\u5ea6\u50cfF1\u8d5b\u8f66\u4e00\u6837\u98de\u9a70<\/h4>\n<h5>4.1 \u52a8\u6001\u5206\u7247\u7b56\u7565&#xff08;\u6839\u636e\u8d1f\u8f7d\u81ea\u52a8\u8c03\u6574\u4efb\u52a1\u7c92\u5ea6&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ DynamicShardStrategy.java&#xff1a;\u52a8\u6001\u5206\u7247\u7684&#034;\u667a\u80fd\u5927\u8111&#034;  <\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DynamicShardStrategy<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">ShardStrategy<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Shard<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">calculateShards<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> totalShards<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6839\u636e\u5f53\u524d\u96c6\u7fa4\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574\u5206\u7247  <\/span><br \/>\n        <span class=\"token keyword\">int<\/span> currentLoad <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">getClusterLoad<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>currentLoad <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            totalShards <span class=\"token operator\">*&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8d1f\u8f7d\u9ad8\u65f6\u589e\u52a0\u5206\u7247\u6570  <\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>currentLoad <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            totalShards <span class=\"token operator\">\/&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8d1f\u8f7d\u4f4e\u65f6\u51cf\u5c11\u5206\u7247\u6570  <\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">ShardUtil<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">split<\/span><span class=\"token punctuation\">(<\/span>totalShards<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u6027\u80fd\u79d8\u7c4d&#xff1a;<\/p>\n<ul>\n<li>getClusterLoad&#xff1a;\u901a\u8fc7Prometheus\u5b9e\u65f6\u83b7\u53d6\u96c6\u7fa4\u8d1f\u8f7d\u6570\u636e<\/li>\n<\/ul>\n<hr \/>\n<h5>4.2 \u4efb\u52a1\u91cd\u8bd5\u4e0e\u7194\u65ad&#xff08;\u50cf\u65ad\u8def\u5668\u4e00\u6837\u4fdd\u62a4\u7cfb\u7edf&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ RetryPolicy.java&#xff1a;\u4efb\u52a1\u91cd\u8bd5\u7684&#034;\u5b89\u5168\u7f51&#034;  <\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RetryPolicy<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> maxRetries <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">long<\/span> backoff <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6307\u6570\u9000\u907f\u65f6\u95f4  <\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">executeWithRetry<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Runnable<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> attempts <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>attempts <span class=\"token operator\">&lt;<\/span> maxRetries<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                task<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                attempts<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>attempts <span class=\"token operator\">&gt;&#061;<\/span> maxRetries<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">CircuitBreaker<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">open<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;videoTranscode&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u89e6\u53d1\u7194\u65ad  <\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span>backoff <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token class-name\">Math<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">pow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> attempts<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6307\u6570\u9000\u907f  <\/span><br \/>\n                <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> ex<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u7194\u65ad\u827a\u672f&#xff1a;<\/p>\n<ul>\n<li>CircuitBreaker&#xff1a;\u50cf\u7535\u8def\u4fdd\u9669\u4e1d\u822c\u4fdd\u62a4\u7cfb\u7edf\u4e0d\u88ab\u51fb\u7a7f<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e94\u3001\u76d1\u63a7\u4e0e\u544a\u8b66&#xff1a;\u5206\u5e03\u5f0f\u4efb\u52a1\u7684&#034;\u5065\u5eb7\u4f53\u68c0\u4e2d\u5fc3&#034;<\/h4>\n<h5>5.1 Prometheus\u6307\u6807\u91c7\u96c6&#xff08;\u4efb\u52a1\u7684&#034;\u751f\u547d\u4f53\u5f81\u76d1\u6d4b\u4eea&#034;&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ TaskMetrics.java&#xff1a;\u4efb\u52a1\u7684&#034;\u4f53\u68c0\u62a5\u544a&#034;  <\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TaskMetrics<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Counter<\/span> taskSuccessCount <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token class-name\">Counter<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;task_success_count&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">help<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6210\u529f\u4efb\u52a1\u8ba1\u6570&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">labelNames<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;task_name&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Histogram<\/span> taskDuration <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token class-name\">Histogram<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;task_duration_seconds&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">help<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u8017\u65f6&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">labelNames<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;task_name&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">buckets<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0.1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1.0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">recordSuccess<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> taskName<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        taskSuccessCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">labels<\/span><span class=\"token punctuation\">(<\/span>taskName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">inc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span>  <\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">recordDuration<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> taskName<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">long<\/span> durationMs<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        taskDuration<span class=\"token punctuation\">.<\/span><span class=\"token function\">labels<\/span><span class=\"token punctuation\">(<\/span>taskName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">observe<\/span><span class=\"token punctuation\">(<\/span>durationMs <span class=\"token operator\">\/<\/span> <span class=\"token number\">1000.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u76d1\u63a7\u54f2\u5b66&#xff1a;<\/p>\n<ul>\n<li>Histogram&#xff1a;\u7528\u76f4\u65b9\u56fe\u5206\u6790\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u5206\u5e03<\/li>\n<\/ul>\n<hr \/>\n<h5>5.2 \u81ea\u5b9a\u4e49\u544a\u8b66&#xff08;\u8ba9\u4efb\u52a1\u5931\u8d25\u65f6\u81ea\u52a8&#034;\u6253\u6025\u6551\u7535\u8bdd&#034;&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ AlertService.java&#xff1a;\u4efb\u52a1\u7684&#034;120\u6025\u6551\u4e2d\u5fc3&#034;  <\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AlertService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PrometheusClient<\/span> prometheusClient<span class=\"token punctuation\">;<\/span>  <\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">checkAlerts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u67e5\u8be2\u5931\u8d25\u4efb\u52a1\u6570  <\/span><br \/>\n        <span class=\"token keyword\">long<\/span> failedCount <span class=\"token operator\">&#061;<\/span> prometheusClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">query<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;task_failure_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>failedCount <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u5931\u8d25\u6570\u8d85\u8fc7\u9608\u503c&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span>  <\/p>\n<p>        <span class=\"token comment\">\/\/ \u67e5\u8be2\u8d85\u65f6\u4efb\u52a1  <\/span><br \/>\n        <span class=\"token keyword\">double<\/span> avgDuration <span class=\"token operator\">&#061;<\/span> prometheusClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">query<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg(task_duration_seconds)&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>avgDuration <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">120<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u8d85\u8fc72\u5206\u949f  <\/span><br \/>\n            <span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u8d85\u65f6&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span>  <\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53d1\u9001\u90ae\u4ef6\/\u9489\u9489\/\u77ed\u4fe1  <\/span><br \/>\n        <span class=\"token class-name\">DingTalkClient<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sendMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u544a\u8b66&#034;<\/span><span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u544a\u8b66\u827a\u672f&#xff1a;<\/p>\n<ul>\n<li>PrometheusClient&#xff1a;\u50cf\u533b\u751f\u8bfb\u5fc3\u7535\u56fe\u822c\u89e3\u8bfb\u6307\u6807\u6570\u636e<\/li>\n<\/ul>\n<hr \/>\n<h4>\u516d\u3001\u6545\u969c\u6062\u590d&#xff1a;\u5206\u5e03\u5f0f\u4efb\u52a1\u7684&#034;\u81ea\u6108\u7cfb\u7edf&#034;<\/h4>\n<h5>6.1 \u4efb\u52a1\u8865\u507f\u673a\u5236&#xff08;\u8ba9\u5931\u8d25\u4efb\u52a1&#034;\u8d77\u6b7b\u56de\u751f&#034;&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ CompensationJob.java&#xff1a;\u5931\u8d25\u4efb\u52a1\u7684&#034;\u590d\u6d3b\u8282&#034;  <\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;XxlJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compensationJob&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ReturnT<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">compensate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Task<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> failedTasks <span class=\"token operator\">&#061;<\/span> taskRepository<span class=\"token punctuation\">.<\/span><span class=\"token function\">findByStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;FAILED&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Task<\/span> task <span class=\"token operator\">:<\/span> failedTasks<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRetryCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            task<span class=\"token punctuation\">.<\/span><span class=\"token function\">setRetryCount<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRetryCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            task<span class=\"token punctuation\">.<\/span><span class=\"token function\">setStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;PENDING&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            taskRepository<span class=\"token punctuation\">.<\/span><span class=\"token function\">save<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">XxlJobLogger<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1&#034;<\/span> <span class=\"token operator\">&#043;<\/span> task<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\u8865\u507f\u6210\u529f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8d85\u8fc73\u6b21\u5931\u8d25&#xff0c;\u4eba\u5de5\u4ecb\u5165  <\/span><br \/>\n            <span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1&#034;<\/span> <span class=\"token operator\">&#043;<\/span> task<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\u9700\u8981\u4eba\u5de5\u5904\u7406&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">ReturnT<\/span><span class=\"token punctuation\">.<\/span>SUCCESS<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u8865\u507f\u54f2\u5b66&#xff1a;<\/p>\n<ul>\n<li>retryCount&#xff1a;\u7ed9\u4efb\u52a1\u4e09\u6b21&#034;\u590d\u6d3b\u673a\u4f1a&#034;<\/li>\n<\/ul>\n<hr \/>\n<h5>6.2 \u8282\u70b9\u6545\u969c\u8f6c\u79fb&#xff08;\u50cf\u5019\u8865\u821e\u8005\u822c\u65e0\u7f1d\u63a5\u66ff&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ NodeMonitor.java&#xff1a;\u6267\u884c\u5668\u7684&#034;\u5065\u5eb7\u68c0\u67e5\u5b98&#034;  <\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">NodeMonitor<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Scheduled<\/span><span class=\"token punctuation\">(<\/span>fixedRate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u6bcf30\u79d2\u68c0\u67e5  <\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">checkNodes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">ExecutorNode<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> nodes <span class=\"token operator\">&#061;<\/span> executorService<span class=\"token punctuation\">.<\/span><span class=\"token function\">getNodes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">ExecutorNode<\/span> node <span class=\"token operator\">:<\/span> nodes<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>node<span class=\"token punctuation\">.<\/span><span class=\"token function\">isHealthy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u8282\u70b9\u4e0d\u5065\u5eb7  <\/span><br \/>\n                <span class=\"token comment\">\/\/ \u5c06\u4efb\u52a1\u8f6c\u79fb\u81f3\u5176\u4ed6\u8282\u70b9  <\/span><br \/>\n                taskDispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">rebalanceTasks<\/span><span class=\"token punctuation\">(<\/span>node<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">XxlJobLogger<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8282\u70b9&#034;<\/span> <span class=\"token operator\">&#043;<\/span> node<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\u6545\u969c&#xff0c;\u4efb\u52a1\u5df2\u8f6c\u79fb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p>\u6545\u969c\u8f6c\u79fb\u827a\u672f&#xff1a;<\/p>\n<ul>\n<li>rebalanceTasks&#xff1a;\u50cf\u91cd\u65b0\u5206\u914d\u5ea7\u4f4d\u822c\u8f6c\u79fb\u4efb\u52a1<\/li>\n<\/ul>\n<hr \/>\n<h3>\u7ed3\u8bba<\/h3>\n<p>\u201c\u5f53Java\u9047\u4e0a\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6&#xff0c;\u5c31\u50cf\u7ed9\u4ee3\u7801\u4e16\u754c\u5e26\u6765\u4e86\u4e00\u573a\u5de5\u4e1a\u9769\u547d\u2014\u2014\u5b83\u4e0d\u518d\u53ea\u662f\u6267\u884c\u4efb\u52a1&#xff0c;\u800c\u662f\u8ba9\u4efb\u52a1\u81ea\u5df1\u4f1a\u2019\u601d\u8003\u2019\u3001\u4f1a\u2019\u8fdb\u5316\u2019\u3002\u201d<\/p>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u5b9e\u6218&#xff0c;\u6211\u4eec\u5b8c\u6210\u4e86\u4ece\u5355\u673a\u8c03\u5ea6\u5230\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5168\u6d41\u7a0b\u6539\u9020&#xff0c;\u638c\u63e1\u4e86&#xff1a;<\/p>\n<li>XXL-JOB\u7684\u5206\u7247\u7b56\u7565\u4e0e\u52a8\u6001\u8def\u7531<\/li>\n<li>PowerJob\u7684DAG\u5de5\u4f5c\u6d41\u7f16\u6392<\/li>\n<li>Quartz\u96c6\u7fa4\u5316\u6539\u9020\u4e0e\u6570\u636e\u5e93\u9501\u673a\u5236<\/li>\n<li>Prometheus&#043;Grafana\u7684\u5168\u6808\u76d1\u63a7\u4f53\u7cfb<\/li>\n<li>\u6545\u969c\u8865\u507f\u4e0e\u7194\u65ad\u964d\u7ea7\u7684\u81ea\u6108\u7cfb\u7edf<\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb851\u6b21\uff0c\u70b9\u8d5e27\u6b21\uff0c\u6536\u85cf31\u6b21\u3002\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\u7cfb\u7edf\u7684\u67b6\u6784\u8bbe\u8ba1\u4e0e\u6838\u5fc3\u6280\u672f\u5b9e\u73b0\u3002\u7cfb\u7edf\u67b6\u6784\u5305\u62ec\u8c03\u5ea6\u4e2d\u5fc3\u3001\u6267\u884c\u5668\u96c6\u7fa4\u3001\u4efb\u52a1\u8def\u7531\u3001\u6570\u636e\u5e93\u5b58\u50a8\u548c\u76d1\u63a7\u544a\u8b66\u7b49\u5173\u952e\u7ec4\u4ef6\uff0c\u786e\u4fdd\u4efb\u52a1\u7684\u9ad8\u6548\u8c03\u5ea6\u4e0e\u6267\u884c\u3002\u6838\u5fc3\u6280\u672f\u90e8\u5206\uff0c\u91cd\u70b9\u63a2\u8ba8\u4e86XXL-JOB\u548cPowerJob\u4e24\u5927\u8c03\u5ea6\u6846\u67b6\u7684\u914d\u7f6e\u4e0e\u4f7f\u7528\uff0c\u5c55\u793a\u4e86Quartz\u96c6\u7fa4\u5316\u6539\u9020\u3001XXL-JOB\u5206\u7247\u4efb\u52a1\u3001PowerJob DAG\u5de5\u4f5c\u6d41\u7b49\u5b9e\u6218\u6848\u4f8b\u3002\u6b64\u5916\uff0c\u6587\u7ae0\u8fd8\u63d0\u51fa\u4e86\u6027\u80fd\u4f18\u5316\u7b56\u7565\uff0c\u5982\u52a8\u6001\u5206\u7247\u3001\u4efb\u52a1\u91cd\u8bd5\u4e0e\u7194\u65ad\u673a\u5236\uff0c\u4ee5\u63d0\u5347\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6548\u7387\u3002\u901a\u8fc7\u8fd9\u4e9b\u6280\u672f\u624b\u6bb5\uff0c\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\u7cfb\u7edf\u80fd\u591f\u50cfF1\u8d5b\u8f66\u4e00\u6837\u9ad8\u6548\u8fd0\u884c\uff0c\u6ee1\u8db3\u590d\u6742\u4e1a\u52a1\u573a\u666f\u7684\u9700<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,3283,664,43],"topic":[],"class_list":{"0":"post-38681","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-java","9":"tag-664","10":"tag-43"},"yoast_head":"<!-- This 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