{"id":14697,"date":"2023-12-04T16:02:32","date_gmt":"2023-12-04T08:02:32","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14697"},"modified":"2023-12-13T14:54:36","modified_gmt":"2023-12-13T06:54:36","slug":"kafka-zhong-deisrar-you-dai-biao-shen-me-isr-de-sh","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/kafka-zhong-deisrar-you-dai-biao-shen-me-isr-de-sh\/","title":{"rendered":"Kafka\u4e2d\u7684ISR\u3001AR\u53c8\u4ee3\u8868\u4ec0\u4e48\uff1f ISR\u7684\u4f38\u7f29\u53c8\u6307\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p>\u5728 Kafka \u4e2d\uff0cISR \u548c AR \u5206\u522b\u4ee3\u8868\u4ee5\u4e0b\u6982\u5ff5\uff1a<\/p>\n<ol>\n<li>\n<strong>ISR\uff08In-Sync Replica\uff09\uff1a<\/strong> ISR \u6307\u7684\u662f\u201c\u540c\u6b65\u526f\u672c\u201d\u6216\u201c\u5728\u540c\u6b65\u4e2d\u7684\u526f\u672c\u201d\u3002\u5bf9\u4e8e\u6bcf\u4e2a\u5206\u533a\uff0cKafka \u7ef4\u62a4\u4e86\u4e00\u7ec4 ISR\uff0c\u8fd9\u662f\u4e0e\u9886\u5bfc\u8005\uff08Leader\uff09\u4fdd\u6301\u540c\u6b65\u7684\u526f\u672c\u96c6\u5408\u3002ISR \u4e2d\u7684\u526f\u672c\u662f\u5f53\u524d\u5904\u4e8e\u540c\u6b65\u72b6\u6001\u7684\uff0c\u5b83\u4eec\u53ef\u4ee5\u786e\u4fdd\u5728\u9886\u5bfc\u8005\u53d1\u751f\u6545\u969c\u65f6\u5feb\u901f\u5730\u9009\u4e3e\u65b0\u7684\u9886\u5bfc\u8005\uff0c\u4ee5\u7ef4\u6301\u5206\u533a\u7684\u53ef\u7528\u6027\u3002ISR \u4e2d\u7684\u526f\u672c\u4e5f\u662f\u53ef\u4ee5\u88ab\u7528\u4e8e\u8bfb\u64cd\u4f5c\u7684\u526f\u672c\u3002\n<\/li>\n<li>\n<strong>AR\uff08Assigned Replica\uff09\uff1a<\/strong> AR \u6307\u7684\u662f\u201c\u5206\u914d\u526f\u672c\u201d\u6216\u201c\u5206\u914d\u4e2d\u7684\u526f\u672c\u201d\u3002\u5bf9\u4e8e\u6bcf\u4e2a\u5206\u533a\uff0cKafka \u7ef4\u62a4\u4e86\u4e00\u7ec4 AR\uff0c\u8fd9\u662f\u88ab\u5206\u914d\u5230\u8be5\u5206\u533a\u4f46\u4e0d\u4e00\u5b9a\u4e0e\u9886\u5bfc\u8005\u4fdd\u6301\u540c\u6b65\u7684\u526f\u672c\u96c6\u5408\u3002AR \u5305\u62ec ISR \u4e2d\u7684\u526f\u672c\u4ee5\u53ca\u53ef\u80fd\u6b63\u5728\u8ffd\u8d76 Catching Up \u7684\u526f\u672c\u3002AR \u7684\u5b58\u5728\u662f\u4e3a\u4e86\u5728 ISR \u4e2d\u7684\u526f\u672c\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u80fd\u591f\u5feb\u901f\u9009\u62e9\u65b0\u7684\u540c\u6b65\u526f\u672c\u3002\n<\/li>\n<\/ol>\n<p>ISR \u7684\u4f38\u7f29\u662f\u6307 ISR \u4e2d\u7684\u526f\u672c\u6570\u91cf\u52a8\u6001\u8c03\u6574\u7684\u8fc7\u7a0b\u3002ISR \u4e2d\u7684\u526f\u672c\u6570\u91cf\u53ef\u4ee5\u6839\u636e\u96c6\u7fa4\u7684\u72b6\u6001\u548c\u526f\u672c\u7684\u540c\u6b65\u60c5\u51b5\u8fdb\u884c\u81ea\u52a8\u4f38\u7f29\u3002ISR \u7684\u4f38\u7f29\u673a\u5236\u6d89\u53ca\u5230\u4ee5\u4e0b\u4e24\u4e2a\u6982\u5ff5\uff1a<\/p>\n<ol>\n<li>\n<strong>Leader Epoch\uff1a<\/strong> \u6bcf\u4e2a\u5206\u533a\u7684\u9886\u5bfc\u8005\u90fd\u6709\u4e00\u4e2a\u9886\u5bfc\u8005\u65f6\u671f\u53f7\uff08Leader Epoch\uff09\u3002\u5f53 ISR \u4e2d\u7684\u526f\u672c\u6570\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u9886\u5bfc\u8005\u4f1a\u589e\u52a0\u5176\u9886\u5bfc\u8005\u65f6\u671f\u53f7\uff0c\u8fd9\u6709\u52a9\u4e8e\u8bc6\u522b\u526f\u672c\u662f\u5426\u4e0e\u5f53\u524d\u7684\u9886\u5bfc\u8005\u4fdd\u6301\u540c\u6b65\u3002\n<\/li>\n<li>\n<strong>High Watermark\uff1a<\/strong> \u9ad8\u6c34\u4f4d\u7ebf\uff08High Watermark\uff09\u662f\u5206\u533a\u4e2d\u6240\u6709\u526f\u672c\u5171\u4eab\u7684\u4e00\u4e2a\u6982\u5ff5\uff0c\u8868\u793a\u5206\u533a\u4e2d\u5df2\u7ecf\u6210\u529f\u590d\u5236\u5230\u6240\u6709\u526f\u672c\u7684\u6d88\u606f\u7684\u4f4d\u7f6e\u3002ISR \u4e2d\u7684\u526f\u672c\u5fc5\u987b\u8ffd\u8d76\u9ad8\u6c34\u4f4d\u7ebf\u4ee5\u4e0a\u7684\u6d88\u606f\u624d\u80fd\u52a0\u5165\u5230 ISR \u4e2d\u3002\n<\/li>\n<\/ol>\n<p>ISR \u7684\u4f38\u7f29\u8fc7\u7a0b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u5f53 ISR 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[&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122],"tags":[],"class_list":["post-14697","post","type-post","status-publish","format-standard","hentry","category-kafka"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=14697"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14697\/revisions"}],"predecessor-version":[{"id":48041,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14697\/revisions\/48041"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14697"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}