{"id":4400,"date":"2019-07-10T20:35:05","date_gmt":"2019-07-10T12:35:05","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=4400"},"modified":"2019-07-10T20:35:05","modified_gmt":"2019-07-10T12:35:05","slug":"%e4%b8%80%e6%96%87%e7%9c%8b%e6%87%82rocketmq%e7%9a%84%e9%a1%ba%e5%ba%8f%e6%b6%88%e6%81%af%e3%80%81%e9%87%8d%e5%a4%8d%e6%b6%88%e6%81%af%e3%80%81%e4%ba%8b%e5%8a%a1%e6%b6%88%e6%81%af%e5%92%8c%e6%b6%88","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4400","title":{"rendered":"\u4e00\u6587\u770b\u61c2RocketMQ\u7684\u987a\u5e8f\u6d88\u606f\u3001\u91cd\u590d\u6d88\u606f\u3001\u4e8b\u52a1\u6d88\u606f\u548c\u6d88\u606f\u5b58\u50a8"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728\u5206\u5e03\u5f0f\u5927\u8086\u6d41\u884c\u7684\u8d8b\u52bf\u4e0b\uff0cMQ \u4e5f\u6210\u4e86\u9762\u8bd5\u4e2d\u4e0d\u53ef\u7f3a\u5c11\u7684\u4e00\u90e8\u5206\u3002\u61c2 MQ\uff0c\u4f1a MQ \u5f80\u5f80\u80fd\u7ed9\u81ea\u5df1\u52a0\u5206\u3002\u76f8\u53cd\uff0c\u5219\u53ef\u80fd\u610f\u5916\u88ab\u6dd8\u6c70\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u5929\uff0c\u4e58\u7740\u96be\u5f97\u7684\u7a7a\u95f2\u673a\u4f1a\uff0c\u6211\u7ed9\u5927\u5bb6\u7b80\u5355\u603b\u7ed3\u4e00\u4e0b\uff0cRocketMQ\u7684\u987a\u5e8f\u6d88\u606f\u3001\u91cd\u590d\u6d88\u606f\u3001\u4e8b\u52a1\u6d88\u606f\u548c\u6d88\u606f\u5b58\u50a8\u3002\u5e0c\u671b\u80fd\u591f\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u987a\u5e8f\u6d88\u606f\uff1a\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u8981\u4fdd\u8bc1\u9700\u8981\u6309\u987a\u5e8f\u6d88\u8d39\u7684\u6d88\u606f\u96c6\u53d1\u9001\u5230\u540c\u4e00\u6d88\u606f\u961f\u5217\uff0c\u540c\u65f6\u6d88\u8d39\u6d88\u606f\u6210\u529f\u540e\u7ed9\u4e88\u56de\u6267\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d88\u606f\u751f\u4ea7\u7aef\u53d1\u9001\u6d88\u606f\u7684\u65f6\u5019\u5b9e\u73b0\u6307\u5b9a\u6d88\u606f\u961f\u5217\u65b9\u6cd5[\u628a\u8ba2\u5355\u53f7\u53d6\u4e86\u505a\u4e86\u4e00\u4e2a\u53d6\u6a21\u8fd0\u7b97\u518d\u4e22\u5230 selector \u4e2d\uff0cselector \u4fdd\u8bc1\u540c\u4e00\u4e2a\u6a21\u7684\u90fd\u4f1a\u6295\u9012\u5230\u540c\u4e00\u6761  queue\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4v0o22y5gj20k0079js3.jpg\" alt=\"\" \/><figcaption>RocketMQ\u7684\u987a\u5e8f\u6d88\u606f<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5373\uff1a\u76f8\u540c\u8ba2\u5355\u53f7\u7684 &#8211;&gt; \u6709\u76f8\u540c\u7684\u6a21 &#8211;&gt; \u6709\u76f8\u540c\u7684 queue\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4v0q16sumj20hs08kjs7.jpg\" alt=\"\" \/><figcaption>RocketMQ \u7684\u987a\u5e8f\u6d88\u606f<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u590d\u6d88\u606f\u4e3b\u8981\u9760\u4e1a\u52a1\u7aef\u5b9e\u73b0\u3002\u6d88\u8d39\u7aef\u5904\u7406\u6d88\u606f\u7684\u4e1a\u52a1\u903b\u8f91\u4fdd\u6301\u5e42\u7b49\u6027\uff0c\u4fdd\u8bc1\u6bcf\u6761\u6d88\u606f\u90fd\u6709\u552f\u4e00\u7f16\u53f7\u4e14\u4fdd\u8bc1\u6d88\u606f\u5904\u7406\u6210\u529f\u4e0e\u53bb\u91cd\u8868\u7684\u65e5\u5fd7\u540c\u65f6\u51fa\u73b0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1\u6d88\u606f\uff0c\u8981\u5206\u522b\u5728\u53d1\u9001\u7aef\u548c\u8ba2\u9605\u7aef\u914d\u5408\u5904\u7406\u3002\u53d1\u9001\u7aef\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7b2c\u4e00\u9636\u6bb5\u53d1\u9001Prepared\u6d88\u606f\u65f6\uff0c\u4f1a\u62ff\u5230\u6d88\u606f\u7684\u5730\u5740<\/li><li>\u7b2c\u4e8c\u9636\u6bb5\u6267\u884c\u672c\u5730\u4e8b\u7269<\/li><li>\u7b2c\u4e09\u9636\u6bb5\u901a\u8fc7\u7b2c\u4e00\u9636\u6bb5\u62ff\u5230\u7684\u5730\u5740\u53bb\u8bbf\u95ee\u6d88\u606f\uff0c\u5e76\u4fee\u6539\u6d88\u606f\u7684\u72b6\u6001\u3002\u5b9a\u671f\u626b\u63cf\u6d88\u606f\u96c6\u7fa4\u4e2d\u7684\u4e8b\u7269\u6d88\u606f\uff0c\u5904\u7406Prepared\u6d88\u606f\u5411\u53d1\u9001\u7aef\u786e\u8ba4\u5e76\u6839\u636e\u53d1\u9001\u7aef\u7b56\u7565\u5904\u7406\u6d88\u606f<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba2\u9605\u7aef\uff1a\u4e1a\u52a1\u5728\u4e8b\u52a1\u91cc\u5b9e\u73b0\u6d88\u606f\u5904\u7406\uff0c\u901a\u8fc7\u91cd\u8bd5\u89e3\u51b3\u5904\u7406\u5931\u8d25\u7684\u6d88\u606f\u95ee\u9898\uff0c\u4e00\u76f4\u5931\u8d25\u4eba\u5de5\u89e3\u51b3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RocketMQ \u7684\u6d88\u606f\u5b58\u50a8\u662f\u7531 consume queue \u548c commit log \u914d\u5408\u5b8c\u6210\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">consume queue \u662f\u6d88\u606f\u7684\u903b\u8f91\u961f\u5217\uff0c\u76f8\u5f53\u4e8e\u5b57\u5178\u7684\u76ee\u5f55\uff0c\u7528\u6765\u6307\u5b9a\u6d88\u606f\u5728\u7269\u7406\u6587\u4ef6 commit log \u4e0a\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e topic \u548c queueId \u6765\u7ec4\u7ec7\u6587\u4ef6\uff0c\u56fe\u4e2dTopicA\u6709\u4e24\u4e2a\u961f\u52170,1\uff0c\u90a3\u4e48TopicA\u548cQueueId=0\u7ec4\u6210\u4e00\u4e2aConsumeQueue\uff0cTopicA\u548cQueueId=1\u7ec4\u6210\u53e6\u4e00\u4e2aConsumeQueue\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ConsumeQueue \u5b58\u50a8\uff1aCommitLog Offset\u662f\u6307\u8fd9\u6761\u6d88\u606f\u5728 Commit Log \u6587\u4ef6\u4e2d\u7684\u5b9e\u9645\u504f\u79fb\u91cf\uff0cSize \u5b58\u50a8\u4e2d\u6d88\u606f\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Message Tag HashCode \u5b58\u50a8\u6d88\u606f\u7684 Tag \u7684\u54c8\u5e0c\u503c\uff1a\u4e3b\u8981\u7528\u4e8e\u8ba2\u9605\u65f6\u6d88\u606f\u8fc7\u6ee4\uff08\u8ba2\u9605\u65f6\u5982\u679c\u6307\u5b9a\u4e86 Tag\uff0c\u4f1a\u6839\u636e HashCode \u6765\u5feb\u901f\u67e5\u627e\u5230\u8ba2\u9605\u7684\u6d88\u606f\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6309\u7167\u6d88\u8d39\u7aef\u7684 GroupName \u6765\u5206\u7ec4\u91cd\u8bd5\u961f\u5217\uff0c\u5982\u679c\u6d88\u8d39\u7aef\u6d88\u8d39\u5931\u8d25\uff0c\u6d88\u606f\u5c06\u88ab\u53d1\u5f80\u91cd\u8bd5\u961f\u5217\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6309\u7167\u6d88\u8d39\u7aef\u7684 GroupName \u6765\u5206\u7ec4\u6b7b\u4fe1\u961f\u5217\uff0c\u5982\u679c\u6d88\u8d39\u7aef\u6d88\u8d39\u5931\u8d25\uff0c\u5e76\u91cd\u8bd5\u6307\u5b9a\u6b21\u6570\u540e\uff0c\u4ecd\u7136\u5931\u8d25\uff0c\u5219\u53d1\u5f80\u6b7b\u4fe1\u961f\u5217\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Commit Log\uff1a\u6d88\u606f\u5b58\u653e\u7684\u7269\u7406\u6587\u4ef6\uff0c\u6bcf\u53f0 broker \u4e0a\u7684 commit log \u88ab\u672c\u673a\u6240\u6709\u7684 queue \u5171\u4eab\uff0c\u4e0d\u505a\u4efb\u4f55\u533a\u5206\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MQ \u7684\u8bbe\u8ba1\u548c\u6e90\u7801\u8fd8\u662f\u5f88\u503c\u5f97\u6211\u4eec\u53bb\u6df1\u5165\u5b66\u4e60\u7684\u3002\u5305\u62ec\u5b83\u7684\u4e00\u4e9b\u7d22\u5f15\u7ed3\u6784\uff0c\u591a Master\uff0c\u96c6\u7fa4\u90e8\u7f72\uff0c\u8d1f\u8f7d\u5747\u8861\uff0c\u6d88\u606f\u8fc7\u6ee4\u7b49\u90fd\u5e94\u8be5\u662f\u6211\u4eec\u5b66\u4e60\u7684\u91cd\u70b9\uff0c\u8fd9\u5bf9\u6211\u4eec\u6bcf\u4e2a\u4eba\u7684\u6210\u957f\u90fd\u4f1a\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font 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[&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[140,1541,1093,1104,142],"class_list":["post-4400","post","type-post","status-publish","format-standard","hentry","category-java","tag-queue","tag-rocketmq","tag-1093","tag-1104","tag-142"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4400"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4400\/revisions"}],"predecessor-version":[{"id":4401,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4400\/revisions\/4401"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}