{"id":10466,"date":"2023-10-18T13:58:37","date_gmt":"2023-10-18T05:58:37","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=10466"},"modified":"2023-10-18T13:58:36","modified_gmt":"2023-10-18T05:58:36","slug":"zookeeper-zab%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=10466","title":{"rendered":"Zookeeper ZAB\u534f\u8bae"},"content":{"rendered":"

\u6982\u8981\u63cf\u8ff0<\/h3>\n

ZAB \u534f\u8bae\u7684\u5168\u79f0\u662f Zookeeper Atomic Broadcase\uff0c\u539f\u5b50\u5e7f\u64ad\u534f\u8bae\u3002
\nZAB\u662f\u4e3a\u4e86\u4fdd\u8bc1Zookeeper\u6570\u636e\u4e00\u81f4\u6027\u800c\u4ea7\u751f\u7684\u7b97\u6cd5\uff08\u6307\u7684\u662fZookeeper\u96c6\u7fa4\u6a21\u5f0f\uff09\u3002\u5b83\u4e0d\u4ec5\u80fd\u89e3\u51b3\u6b63\u5e38\u60c5\u51b5\u4e0b\u7684\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\uff0c\u8fd8\u53ef\u4ee5\u4fdd\u8bc1\u4e3b\u8282\u70b9\u53d1\u751f\u5b95\u673a\u540e\u7684\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002
\n\u901a\u8fc7\u8fd9\u4e2a ZAB \u534f\u8bae\u53ef\u4ee5\u8fdb\u884c\u96c6\u7fa4\u95f4\u4e3b\u5907\u8282\u70b9\u7684\u6570\u636e\u540c\u6b65\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n

\n

\u8be6\u7ec6\u8bf4\u660e<\/h3>\n

\u5728\u8bb2\u89e3 ZAB \u534f\u8bae\u4e4b\u524d\uff0c\u6211\u4eec\u5fc5\u987b\u8981\u4e86\u89e3 Zookeeper \u7684\u5404\u8282\u70b9\u7684\u89d2\u8272\u3002<\/p>\n

1.Zookeeper \u5404\u8282\u70b9\u7684\u89d2\u8272<\/h4>\n

Leader
\n\uf0b7\u8d1f\u8d23\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bfb\u3001\u5199\u4e8b\u52a1\u8bf7\u6c42
\n\u3002\u8fd9\u91cc\u7684\u4e8b\u52a1\u8bf7\u6c42\u53ef\u4ee5\u7406\u89e3\u8fd9\u4e2a\u8bf7\u6c42\u5177\u6709\u4e8b\u52a1\u7684 ACID \u7279\u6027\u3002
\n\uf0b7\u540c\u6b65\u5199\u4e8b\u52a1\u8bf7\u6c42
\n\u7ed9\u5176\u4ed6\u8282\u70b9\uff0c\u4e14\u9700\u8981\u4fdd\u8bc1\u4e8b\u52a1\u7684\u987a\u5e8f\u6027\u3002
\n\uf0b7\u72b6\u6001\u4e3a LEADING\u3002
\nFollower
\n\uf0b7\u8d1f\u8d23\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bfb\u8bf7\u6c42
\n\uf0b7\u8f6c\u53d1\u5199\u4e8b\u52a1\u8bf7\u6c42\u7ed9 Leader\u3002
\n\uf0b7\u53c2\u4e0e Leader \u7684\u9009\u4e3e\u3002
\n\uf0b7\u72b6\u6001\u4e3a FOLLOWING\u3002
\nFOLLOWING \u5df2\u7ecf\u5b58\u5728leader\uff0c\u5f53\u524d\u670d\u52a1\u5668\u4e3a\u8ddf\u968f\u8005
\nObserver
\n\u548c Follower \u4e00\u6837\uff0c\u552f\u4e00\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u53c2\u4e0e Leader \u7684\u9009\u4e3e\uff0c\u4e14\u72b6\u6001\u4e3a OBSERING\u3002
\n\u9664\u975ezookeeper\u96c6\u7fa4\u5f88\u5927\uff0c\u5426\u5219\u4e00\u822c\u6ca1\u6709observer<\/p>\n

\u8fd8\u6709\u4e00\u4e2a\u7279\u6b8a\u72b6\u6001LOOKING \uff1a\u5f53\u524d\u96c6\u7fa4\u6ca1\u6709leader\uff0c\u51c6\u5907\u9009\u4e3e<\/p>\n

2.\u6295\u7968\u7684\u4f9d\u636e<\/h4>\n

\u6295\u7968\u7684\u4f9d\u636e\u5c31\u662f\u4e0b\u9762\u7684\u4e24\u4e2aid\uff0c\u6295\u7968\u5373\u662f\u7ed9\u6240\u6709\u670d\u52a1\u5668\u53d1\u9001\u00a0(myid,zxid)\u00a0\u4fe1\u606f\u3002
\nmyid\uff1a\u7528\u6237\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u81ea\u5df1\u914d\u7f6e\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u8981\u914d\u7f6e\u7684\u4e00\u4e2a\u552f\u4e00\u503c\uff0c\u4ece1\u5f00\u59cb\u5f80\u540e\u7d2f\u52a0\u3002<\/p>\n

\"file\"<\/p>\n

\"file\"<\/p>\n

\"file\"<\/p>\n

zxid\uff1azxid\u670964\u4f4d\uff0c\u5206\u6210\u4e24\u90e8\u5206\uff1a
\n\u9ad832\u4f4d\u662fLeader\u7684epoch\uff1a\u9009\u4e3e\u65f6\u949f\uff0c\u6bcf\u6b21\u9009\u51fa\u65b0\u7684Leader\uff0cepoch\u7d2f\u52a01
\n\u4f4e32\u4f4d\u662f\u5728\u8fd9\u8f6eepoch\u5185\u7684\u4e8b\u52a1id\uff1a\u5bf9\u4e8e\u7528\u6237\u7684\u6bcf\u4e00\u6b21\u66f4\u65b0\u64cd\u4f5c\u96c6\u7fa4\u90fd\u4f1a\u7d2f\u52a01\u3002<\/p>\n

\"file\"<\/p>\n

\u9009\u4e3e\u4f18\u5148\u7ea7\uff1a>\u9009\u4e3e\u4f18\u5148\u7ea7\uff1a epoch > counter > myid<\/font><\/p>\n

Zxid\u67e5\u770b\u65b9\u6cd5\uff1aecho twzkstat | nc IP 2181<\/p>\n

\"file\"<\/p>\n

Zxid\uff08Transaction id\uff09\u7c7b\u4f3c\u4e8e RDBMS \u4e2d\u7684\u4e8b\u52a1 ID\uff0c\u7528\u4e8e\u6807\u8bc6\u4e00\u6b21\u66f4\u65b0\u64cd\u4f5c\u7684 Proposal\uff08\u63d0\u8bae\uff09ID\u3002\u4e3a\u4e86\u4fdd\u8bc1\u987a\u5e8f\u6027\uff0c\u8be5 zkid \u5fc5\u987b\u5355\u8c03\u9012\u589e\u3002
\n\u6ce8\u610f\uff1azk\u628aepoch\u548c\u4e8b\u52a1id\u5408\u5728\u4e00\u8d77\uff0c\u6bcf\u6b21epoch\u53d8\u5316\uff0c\u90fd\u5c06\u4f4e32\u4f4d\u7684\u5e8f\u53f7\u91cd\u7f6e\uff0c\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u65b9\u4fbf\u5bf9\u6bd4\u51fa\u6700\u65b0\u7684\u6570\u636e\uff0c\u4fdd\u8bc1\u4e86zxid\u7684\u5168\u5c40\u9012\u589e\u6027<\/p>\n

3.\u5173\u4e8e\u9009\u4e3e\u8f6e\u6b21
\n\u7531\u4e8e\u6240\u6709\u6709\u6548\u7684\u6295\u7968\u90fd\u5fc5\u987b\u5728\u540c\u4e00\u8f6e\u6b21\u4e2d\u3002\u6bcf\u5f00\u59cb\u65b0\u4e00\u8f6e\u6295\u7968\u81ea\u8eab\u7684logicClock\u81ea\u589e1\u3002
\n\u63a5\u6536\u5230\u7684logicClock\u5927\u4e8e\u81ea\u5df1\u7684\u3002\u8bf4\u660e\u81ea\u5df1\u843d\u540e\u4e86\uff0c\u66f4\u65b0logicClock\u540e\u6b63\u5e38\u3002 \u63a5\u6536\u5230\u7684logicClock\u5c0f\u4e8e\u81ea\u5df1\u7684\u3002\u5ffd\u7565\u8be5\u7968\u3002 \u63a5\u6536\u5230\u7684logickClock\u4e0e\u81ea\u5df1\u7684\u76f8\u7b49\uff0c\u6b63\u5e38\u5224\u65ad\u3002
\n4.\u5173\u4e8e\u9009\u7968\u5224\u65ad
\n\u5bf9\u6bd4\u81ea\u8eab\u7684\u548c\u63a5\u6536\u5230\u7684(myid,zxid)
\n\u9996\u5148\u5bf9\u6bd4zxid\u9ad832\u4f4d\u7684\u9009\u4e3e\u65f6\u949fepoch \u4e00\u81f4\u5219\u5bf9\u6bd4zxid\u4f4e32\u7684\u4e8b\u52a1id \u4ecd\u7136\u4e00\u81f4\u5219\u5bf9\u6bd4\u7528\u6237\u81ea\u5df1\u914d\u7f6e\u7684myid\u00a0
\n\u9009\u5b8c\u540e\u5e7f\u64ad\u9009\u51fa\u7684(myid,zxid)
\n5.\u5173\u4e8e\u9009\u4e3e\u7ed3\u675f
\n\u8fc7\u534a\u670d\u52a1\u5668\u9009\u4e86\u540c\u4e00\u4e2a\uff0c\u5219\u6295\u7968\u7ed3\u675f\uff0c\u6839\u636e\u6295\u7968\u7ed3\u679c\u66f4\u65b0\u81ea\u8eab\u72b6\u6001\u4e3aleader\u6216\u8005follower<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6982\u8981\u63cf\u8ff0 ZAB \u534f\u8bae\u7684\u5168\u79f0\u662f Zookeeper Atomic Broadcase\uff0c\u539f\u5b50\u5e7f\u64ad\u534f\u8bae\u3002 ZAB\u662f ..<\/p>\n

<\/div>\n

Read more<\/a><\/p>\n","protected":false},"author":70,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[240,121],"tags":[],"class_list":["post-10466","post","type-post","status-publish","format-standard","hentry","category-operation","category-121"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10466"}],"version-history":[{"count":1,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10466\/revisions"}],"predecessor-version":[{"id":10472,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10466\/revisions\/10472"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}