{"id":14775,"date":"2023-12-04T16:08:10","date_gmt":"2023-12-04T08:08:10","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14775"},"modified":"2023-12-13T16:23:26","modified_gmt":"2023-12-13T08:23:26","slug":"kafkaunclean-pei-zhi-dai-biao-shen-me-hui-duispark","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/kafkaunclean-pei-zhi-dai-biao-shen-me-hui-duispark\/","title":{"rendered":"KafkaUnclean\u914d\u7f6e\u4ee3\u8868\u4ec0\u4e48\uff1f\u4f1a\u5bf9spark streaming\u6d88\u8d39\u6709\u4ec0\u4e48\u5f71\u54cd\uff1f"},"content":{"rendered":"<p>\u5728 Kafka \u4e2d\uff0c<code>unclean.leader.election.enable<\/code> \u662f\u4e00\u4e2a\u914d\u7f6e\u9879\uff0c\u7528\u4e8e\u63a7\u5236\u662f\u5426\u5141\u8bb8 &quot;\u810f&quot;\uff08unclean\uff09\u7684 Leader \u9009\u4e3e\u3002\u5f53\u67d0\u4e2a\u5206\u533a\u7684 ISR\uff08In-Sync Replica\uff09\u4e2d\u7684\u526f\u672c\u5168\u90e8\u4e0d\u53ef\u7528\u65f6\uff0cKafka \u662f\u5426\u5141\u8bb8\u4ece\u672a\u540c\u6b65\u7684\u526f\u672c\u4e2d\u9009\u4e3e\u65b0\u7684 Leader\u3002<\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c<code>unclean.leader.election.enable<\/code> \u88ab\u8bbe\u7f6e\u4e3a <code>true<\/code>\uff0c\u5373\u5141\u8bb8\u810f Leader \u9009\u4e3e\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c ISR \u4e2d\u7684\u6240\u6709\u526f\u672c\u90fd\u4e0d\u53ef\u7528\uff0cKafka \u5c06\u5141\u8bb8\u4ece\u672a\u540c\u6b65\u7684\u526f\u672c\u4e2d\u9009\u4e3e\u65b0\u7684 Leader\u3002\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u5373\u4f7f ISR \u4e2d\u7684\u6240\u6709\u526f\u672c\u90fd\u65e0\u6cd5\u63d0\u4f9b\u670d\u52a1\uff0c\u5206\u533a\u4ecd\u7136\u80fd\u591f\u7ee7\u7eed\u5de5\u4f5c\uff0c\u4f46\u6709\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6d88\u606f\u7684\u4e22\u5931\u6216\u8005\u91cd\u590d\u3002<\/p>\n<p>\u5bf9\u4e8e Spark Streaming \u6216\u5176\u4ed6 Kafka \u6d88\u8d39\u8005\u6765\u8bf4\uff0c<code>unclean.leader.election.enable<\/code> \u7684\u914d\u7f6e\u4e3b\u8981\u5f71\u54cd\u4e86\u5206\u533a\u7684\u53ef\u7528\u6027\u548c\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u5982\u679c\u5728 ISR \u4e2d\u7684\u6240\u6709\u526f\u672c\u90fd\u4e0d\u53ef\u7528\uff0c\u810f Leader \u9009\u4e3e\u53ef\u4ee5\u4f7f\u5206\u533a\u7ee7\u7eed\u5de5\u4f5c\uff0c\u4f46\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e00\u4e9b\u6570\u636e\u4e0d\u4e00\u81f4\u3002<\/p>\n<p>\u5728\u5b9e\u65f6\u6570\u636e\u5904\u7406\u573a\u666f\u4e0b\uff0c\u901a\u5e38\u66f4\u503e\u5411\u4e8e\u5173\u95ed\u810f Leader \u9009\u4e3e\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u4e0d\u4e22\u5931\u3002\u53ef\u4ee5\u901a\u8fc7\u5c06 <code>unclean.leader.election.enable<\/code> \u8bbe\u7f6e\u4e3a <code>false<\/code> \u6765\u5173\u95ed\u810f Leader \u9009\u4e3e\u3002<\/p>\n<pre><code class=\"language-properties\">unclean.leader.election.enable=false\n<\/code><\/pre>\n<p>\u5173\u95ed\u810f Leader \u9009\u4e3e\u7684\u5f71\u54cd\u662f\uff0c\u5f53 ISR \u4e2d\u7684\u6240\u6709\u526f\u672c\u90fd\u4e0d\u53ef\u7528\u65f6\uff0c\u5206\u533a\u5c06\u8fdb\u5165\u4e0d\u53ef\u7528\u72b6\u6001\uff0c\u76f4\u5230\u81f3\u5c11\u6709\u4e00\u4e2a\u526f\u672c\u91cd\u65b0\u52a0\u5165 ISR\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u62a4\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u4f46\u53ef\u80fd\u5bfc\u81f4\u4e00\u4e9b\u5206\u533a\u5728\u67d0\u4e9b\u65f6\u523b\u4e0d\u53ef\u7528\u3002<\/p>\n<p>\u5728\u914d\u7f6e <code>unclean.leader.election.enable<\/code> \u65f6\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u4e1a\u52a1\u7684\u5bb9\u5fcd\u5ea6\u3001\u6570\u636e\u4e00\u81f4\u6027\u7684\u8981\u6c42\u4ee5\u53ca\u5206\u533a\u53ef\u7528\u6027\u7684\u6743\u8861\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Kafka \u4e2d\uff0cunclean.leader.election.enable \u662f\u4e00\u4e2a\u914d\u7f6e\u9879\uff0c\u7528\u4e8e\u63a7\u5236\u662f\u5426\u5141 [&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-14775","post","type-post","status-publish","format-standard","hentry","category-kafka"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14775","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=14775"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14775\/revisions"}],"predecessor-version":[{"id":48079,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14775\/revisions\/48079"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14775"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}