{"id":14759,"date":"2023-12-04T16:06:58","date_gmt":"2023-12-04T08:06:58","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14759"},"modified":"2023-12-13T16:14:37","modified_gmt":"2023-12-13T08:14:37","slug":"kafka-zhongleolsoarisrhw-dou-biao-shi-shen-me-han","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/kafka-zhongleolsoarisrhw-dou-biao-shi-shen-me-han\/","title":{"rendered":"Kafka\u4e2dLEO\u3001LSO\u3001AR\u3001ISR\u3001HW\u90fd\u8868\u793a\u4ec0\u4e48\u542b\u4e49\uff1f"},"content":{"rendered":"

\u5728 Apache Kafka \u4e2d\uff0cLEO\u3001LSO\u3001AR\u3001ISR\u3001HW \u662f\u4e00\u4e9b\u4e0e\u6d88\u606f\u590d\u5236\u548c\u6d88\u8d39\u8005\u8fdb\u5ea6\u7ba1\u7406\u76f8\u5173\u7684\u91cd\u8981\u6982\u5ff5\u3002\u4ee5\u4e0b\u662f\u5b83\u4eec\u7684\u542b\u4e49\uff1a<\/p>\n

    \n
  1. \nLEO\uff08Log End Offset\uff09\uff1a<\/strong><\/p>\n
      \n
    • LEO \u8868\u793a\u65e5\u5fd7\u7684\u672b\u5c3e\u504f\u79fb\u91cf\uff0c\u5373\u5728\u4e00\u4e2a\u5206\u533a\u4e2d\u6700\u65b0\u6d88\u606f\u7684\u504f\u79fb\u91cf\u3002LEO \u662f\u5f53\u524d\u5206\u533a\u4e2d\u6700\u540e\u4e00\u6761\u6d88\u606f\u7684\u504f\u79fb\u91cf\uff0c\u4e5f\u662f\u672a\u6765\u6d88\u606f\u7684\u504f\u79fb\u91cf\u4e0a\u9650\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \nLSO\uff08Log Start Offset\uff09\uff1a<\/strong><\/p>\n
        \n
      • LSO \u8868\u793a\u65e5\u5fd7\u7684\u8d77\u59cb\u504f\u79fb\u91cf\uff0c\u5373\u5728\u4e00\u4e2a\u5206\u533a\u4e2d\u7684\u6700\u65e9\u6d88\u606f\u7684\u504f\u79fb\u91cf\u3002LSO \u662f\u5f53\u524d\u5206\u533a\u4e2d\u7b2c\u4e00\u6761\u6d88\u606f\u7684\u504f\u79fb\u91cf\uff0c\u4e5f\u662f\u8fc7\u53bb\u6d88\u606f\u7684\u504f\u79fb\u91cf\u4e0b\u9650\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \nAR\uff08Replica Assignment\uff09\uff1a<\/strong><\/p>\n
          \n
        • AR \u8868\u793a\u5206\u533a\u7684\u526f\u672c\u5206\u914d\uff0c\u5373\u54ea\u4e9b Broker \u662f\u5206\u533a\u7684\u526f\u672c\u3002AR \u51b3\u5b9a\u4e86\u6d88\u606f\u5728 Kafka \u96c6\u7fa4\u4e2d\u7684\u590d\u5236\u548c\u5206\u53d1\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \nISR\uff08In-Sync Replica\uff09\uff1a<\/strong><\/p>\n
            \n
          • ISR \u8868\u793a\u4e0e\u9886\u5bfc\u526f\u672c\uff08Leader Replica\uff09\u4fdd\u6301\u540c\u6b65\u7684\u4e00\u7ec4\u526f\u672c\u3002ISR \u4e2d\u7684\u526f\u672c\u4f1a\u8ffd\u8d76\u9886\u5bfc\u526f\u672c\u7684\u8fdb\u5ea6\u3002ISR \u662f\u4e3a\u4e86\u786e\u4fdd\u5728\u67d0\u4e2a\u526f\u672c\u53d1\u751f\u6545\u969c\u65f6\uff0c\u4ecd\u6709\u8db3\u591f\u591a\u7684\u526f\u672c\u53ef\u7528\uff0c\u4ece\u800c\u4e0d\u5f71\u54cd\u751f\u4ea7\u548c\u6d88\u8d39\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \nHW\uff08High Watermark\uff09\uff1a<\/strong><\/p>\n
              \n
            • HW \u8868\u793a\u9ad8\u6c34\u4f4d\u7ebf\uff0c\u662f ISR \u4e2d\u6240\u6709\u526f\u672c\u7684\u6700\u5c0f\u504f\u79fb\u91cf\u3002HW \u662f Leader Replica \u8ba4\u4e3a\u5df2\u7ecf\u88ab\u6210\u529f\u590d\u5236\u5230\u6240\u6709 ISR \u4e2d\u7684\u6d88\u606f\u7684\u504f\u79fb\u91cf\u3002\u6d88\u8d39\u8005\u7684\u8fdb\u5ea6\u901a\u5e38\u4e0d\u4f1a\u8d85\u8fc7 HW\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

              \u8fd9\u4e9b\u6982\u5ff5\u4e00\u8d77\u534f\u540c\u5de5\u4f5c\uff0c\u786e\u4fdd Kafka \u4e2d\u7684\u6d88\u606f\u590d\u5236\u548c\u6d88\u8d39\u8005\u8fdb\u5ea6\u7ba1\u7406\u662f\u53ef\u9760\u548c\u4e00\u81f4\u7684\u3002LEO \u548c LSO \u5b9a\u4e49\u4e86\u4e00\u4e2a\u5206\u533a\u7684\u6d88\u606f\u8303\u56f4\uff0cAR \u51b3\u5b9a\u4e86\u526f\u672c\u7684\u5206\u5e03\uff0cISR \u548c HW \u7528\u4e8e\u4fdd\u969c\u53ef\u9760\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728\u5b9e\u9645\u64cd\u4f5c\u548c\u76d1\u63a7\u4e2d\uff0c\u4e86\u89e3\u8fd9\u4e9b\u6982\u5ff5\u7684\u542b\u4e49\u548c\u76f8\u4e92\u5173\u7cfb\u662f\u7ba1\u7406\u548c\u7ef4\u62a4 Kafka \u96c6\u7fa4\u7684\u5173\u952e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

              \u5728 Apache Kafka \u4e2d\uff0cLEO\u3001LSO\u3001AR\u3001ISR\u3001HW \u662f\u4e00\u4e9b\u4e0e\u6d88\u606f\u590d\u5236\u548c\u6d88\u8d39\u8005\u8fdb\u5ea6\u7ba1\u7406\u76f8\u5173\u7684\u91cd […]<\/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-14759","post","type-post","status-publish","format-standard","hentry","category-kafka"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14759","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=14759"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14759\/revisions"}],"predecessor-version":[{"id":48071,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14759\/revisions\/48071"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14759"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}