{"id":1063,"date":"2020-07-05T12:36:34","date_gmt":"2020-07-05T04:36:34","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=1063"},"modified":"2020-07-15T12:08:09","modified_gmt":"2020-07-15T04:08:09","slug":"zookeeper%e7%9a%84%e9%80%89%e4%b8%be%e5%92%8c%e6%8f%90%e4%ba%a4","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=1063","title":{"rendered":"zookeeper\u7684\u9009\u4e3e\u548c\u63d0\u4ea4"},"content":{"rendered":"\n<p>1.zookeeper leader\u9009\u4e3e\uff0c\u5982\u4f55\u4fdd\u8bc1\u9009\u51fa\u6765\u7684leader\u7684\u6570\u636e\u662f\u6700\u65b0\u7684\uff1f<\/p>\n\n\n\n<p>zxid\uff0czxid\u662f\u4e8b\u52a1\u63d0\u4ea4\u65f6\u5019\uff0c\u81ea\u589e\u7684\u4e00\u4e2aid\uff0c\u5305\u542bepoch\u548ccounter\uff0cepoch\u53ef\u4ee5\u7406\u89e3\u8868\u793a\u5f53\u524d\u662f\u54ea\u4e2aleader\u6765\u9886\u5bfc\uff0c\u662f\u54ea\u4e2a\u671d\u4ee3\uff1bcounter\u53ef\u4ee5\u7406\u89e3\u4e3a\u6d88\u606f\u7684offset\uff0c\u5f53\u524d\u63d0\u4ea4\u5230\u54ea\u4e86\u3002\u8fd9\u6837\u5b50\u5c31\u80fd\u9009\u51fa\uff0cepoch\u6700\u5927\u5e76\u4e14counter\u6700\u5927\u7684\u8282\u70b9\u4f5c\u4e3aleader\u3002\u8d85\u8fc7\u4e00\u534a\u90fd\u540c\u610f\u4e4b\u540e\uff0c\u8be5\u8282\u70b9\u5c31\u6210\u4e3aleader\u4e86\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"705\" height=\"991\" src=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-1.png\" alt=\"\" class=\"wp-image-1068\" srcset=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-1.png 705w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-1-213x300.png 213w\" sizes=\"(max-width: 705px) 100vw, 705px\" \/><\/figure>\n\n\n\n<p>2.zookeeper\u5e7f\u64ad\u63d0\u4ea4\u6570\u636e\u5982\u4f55\u4fdd\u8bc1\u5404\u4e2a\u8282\u70b9\u6570\u636e\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">a.<strong>\u53ef\u9760\u4f20\u9012:<\/strong>&nbsp;&nbsp;\u5982\u679c\u6d88\u606fm\u7531\u4e00\u53f0\u670d\u52a1\u5668\u4f20\u9012\uff0c\u90a3\u4e48\u5b83\u6700\u7ec8\u5c06\u7531\u6240\u6709\u670d\u52a1\u5668\u4f20\u9012\u3002<br>b.<strong>\u5168\u5c40\u6709\u5e8f:<\/strong>&nbsp;\u5982\u679c\u4e00\u4e2a\u6d88\u606fa\u5728\u6d88\u606fb\u4e4b\u524d\u88ab\u4e00\u53f0\u670d\u52a1\u5668\u4ea4\u4ed8\uff0c\u90a3\u4e48\u6240\u6709\u670d\u52a1\u5668\u90fd\u4ea4\u4ed8\u4e86a\u548cb\uff0c\u5e76\u4e14a\u5148\u4e8eb\u3002<br>c.<strong>\u56e0\u679c\u6709\u5e8f:<\/strong>&nbsp;\u5982\u679c\u6d88\u606fa\u5728\u56e0\u679c\u4e0a\u5148\u4e8e\u6d88\u606fb\u5e76\u4e14\u4e8c\u8005\u90fd\u88ab\u4ea4\u4ed8\uff0c\u90a3\u4e48a\u5fc5\u987b\u6392\u5728b\u4e4b\u524d\u3002<br><br>\u6709\u5e8f\u6027\u5982\u4f55\u4fdd\u8bc1\uff1a1.tcp\u534f\u8bae\uff0c\u4fdd\u8bc1\u7f51\u7edc\u4f20\u9012\u6709\u5e8f 2.\u8282\u70b9\u4e4b\u95f4\u6709FIFO\u7684\u6d88\u606f\u961f\u5217\uff0c\u4fdd\u8bc1\u5168\u5c40\u6709\u5e8f\u6027 3.\u901a\u8fc7\u5168\u5c40\u9012\u589e\u7684zxid\u4fdd\u8bc1\u56e0\u679c\u6709\u5e8f\u6027<br><br>\u4e0b\u56fe\u662f\u4e00\u4e2a\u4e8b\u52a1\u7684\u63d0\u4ea4\u8fc7\u7a0b\uff0c\u662f\u4e00\u4e2a\u7c7b\u4f3c\u4e8c\u9636\u6bb5\u63d0\u4ea4\u7684\u8fc7\u7a0b\uff0c\u8d85\u8fc7\u4e00\u534a\u7684\u8282\u70b9\u7ae5ack\u4e4b\u540e\uff0c\u53ef\u4ee5\u63d0\u4ea4\u6570\u636e\u3002\u5e76\u975e\u4e00\u4e2a\u5f3a\u4e00\u81f4\u7684\u6a21\u578b\u3002<\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"711\" height=\"560\" src=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-2.png\" alt=\"\" class=\"wp-image-1080\" srcset=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-2.png 711w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2020\/07\/image-2-300x236.png 300w\" sizes=\"(max-width: 711px) 100vw, 711px\" \/><\/figure>\n\n\n\n<ol><li>Leader\u6536\u5230\u5ba2\u6237\u7aef\u7684\u5199\u8bf7\u6c42\uff0c\u751f\u6210\u4e00\u4e2a\u4e8b\u52a1\uff08Proposal\uff09\uff0c\u5176\u4e2d\u5305\u542b\u4e86zxid\uff1b<\/li><li>Leader\u5f00\u59cb\u5e7f\u64ad\u8be5\u4e8b\u52a1\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\u6240\u6709\u8282\u70b9\u7684\u901a\u8baf\u90fd\u662f\u7531\u4e00\u4e2aFIFO\u7684\u961f\u5217\u7ef4\u62a4\u7684\uff1b<\/li><li>Follower\u63a5\u53d7\u5230\u4e8b\u52a1\u4e4b\u540e\uff0c\u5c06\u4e8b\u52a1\u5199\u5165\u672c\u5730\u78c1\u76d8\uff0c\u5199\u5165\u6210\u529f\u4e4b\u540e\u8fd4\u56deLeader\u4e00\u4e2aACK\uff1b<\/li><li>Leader\u6536\u5230\u8fc7\u534a\u7684ACK\u4e4b\u540e\uff0c\u5f00\u59cb\u63d0\u4ea4\u672c\u4e8b\u52a1\uff0c\u5e76\u5e7f\u64ad\u4e8b\u52a1\u63d0\u4ea4\u4fe1\u606f<\/li><li>\u4ece\u8282\u70b9\u5f00\u59cb\u63d0\u4ea4\u672c\u4e8b\u52a1\u3002<\/li><\/ol>\n\n\n\n<p>\u72b6\u6001\u6d41\u8f6c\u8fd9\u91cc\u4e0d\u5199\u4e86<\/p>\n\n\n\n<p>\u672c\u6587\u5185\u5bb9\u53c2\u8003\uff1a<a href=\"https:\/\/mp.weixin.qq.com\/s\/k0zAExTvMsrugCaNJxs7hQ\">https:\/\/mp.weixin.qq.com\/s\/k0zAExTvMsrugCaNJxs7hQ<\/a><\/p>\n\n\n\n<p>\u540e\u7eed\u53c2\u8003\uff1a<a href=\"https:\/\/www.jianshu.com\/p\/2bceacd60b8a\">https:\/\/www.jianshu.com\/p\/2bceacd60b8a<\/a> \u8fd9\u7bc7\u6587\u7ae0\u7684\u8bc4\u8bba\u53ef\u4ee5\u770b\u4e0b\uff0c\u6211\u731c\u60f3leader\u5728\u63d0\u4ea4\u81ea\u5df1\u7684\u4e8b\u52a1\u548c\u5e7f\u64ad\u64cd\u4f5c\u53ef\u80fd\u662f\u539f\u5b50\u7684\uff0c\u6ca1\u6709\u9a8c\u8bc1\u3002<\/p>\n\n\n\n<p>1\uff09Zab \u534f\u8bae\u9700\u8981\u786e\u4fdd\u90a3\u4e9b<strong>\u5df2\u7ecf\u5728 Leader \u670d\u52a1\u5668\u4e0a\u63d0\u4ea4\uff08Commit\uff09\u7684\u4e8b\u52a1\u6700\u7ec8\u88ab\u6240\u6709\u7684\u670d\u52a1\u5668\u63d0\u4ea4<\/strong>\u3002<br>2\uff09Zab \u534f\u8bae\u9700\u8981\u786e\u4fdd<strong>\u4e22\u5f03\u90a3\u4e9b\u53ea\u5728 Leader \u4e0a\u88ab\u63d0\u51fa\u800c\u6ca1\u6709\u88ab\u63d0\u4ea4\u7684\u4e8b\u52a1<\/strong>\u3002<br><\/p>\n\n\n\n<p>\u4e0a\u9762\u4eae\u70b9\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/p>\n\n\n\n<p>\u9009\u4e3e\u65f6\u5019\uff0c\u4e0d\u4f1a\u9009\u51fa\u5e26\u6709\u672a\u63d0\u4ea4Proposal\u7684\u8282\u70b9\u4f5c\u4e3aleader\uff0c\u5e76\u4e14\u53ea\u6709zxid\u6700\u5927\u7684\u53ef\u4ee5\u4f5c\u4e3aleader\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.zookeeper leader\u9009\u4e3e\uff0c\u5982\u4f55\u4fdd\u8bc1\u9009\u51fa\u6765\u7684leader\u7684\u6570\u636e\u662f\u6700\u65b0\u7684\uff1f zxid\uff0czxid\u662f\u4e8b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[53],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1063"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1063"}],"version-history":[{"count":34,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1063\/revisions"}],"predecessor-version":[{"id":1104,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1063\/revisions\/1104"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}