{"id":10475,"date":"2022-08-24T16:57:15","date_gmt":"2022-08-24T08:57:15","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=10475"},"modified":"2022-08-24T16:57:50","modified_gmt":"2022-08-24T08:57:50","slug":"gbase-8a%e8%bf%90%e7%bb%b4%e6%a1%88%e4%be%8b%ef%bc%9a%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e5%a4%a7%e9%87%8ftime_wati%e5%af%bc%e8%87%b4%e9%9b%86%e7%be%a4%e8%bf%9e%e6%8e%a5%e5%a4%b1%e8%b4%a5%e5%87%ba","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/10475","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u8fd0\u7ef4\u6848\u4f8b\uff1a\u64cd\u4f5c\u7cfb\u7edf\u5927\u91cfTIME_WAIT\u5bfc\u81f4\u96c6\u7fa4\u8fde\u63a5\u5931\u8d25\u51fa\u73b0\u72b6\u6001\u5f02\u5e38"},"content":{"rendered":"<p>GBase 8a\u8fd0\u7ef4\u6848\u4f8b\uff0cGBase 8a \u6570\u636e\u5e93\u67d0\u4e9b\u64cd\u4f5c\u65f6\uff0c\u8282\u70b9\u670d\u52a1\u5185\u90e8\u4f1a\u4e34\u65f6\u521b\u5efa\u8fde\u63a5\uff0c\u64cd\u4f5c\u5b8c\u6210\u540e\u5173\u95ed\uff0c\u5982\u679c\u5728\u67d0\u4e2a\u9636\u6bb5\u65f6\u64cd\u4f5c\u7cfb\u7edf\u6ca1\u6709\u53ef\u7528\u7684\u672c\u5730\u7aef\u53e3\uff0c\u5c06\u4f1a\u9020\u6210\u8fde\u63a5\u5931\u8d25\uff0c\u6d89\u53ca\u7684\u8868\u4e5f\u5c06\u65e0\u6cd5\u786e\u4fdd\u72b6\u6001\u6b63\u786e\uff0c\u4e8e\u662f\u8bbe\u7f6e\u4e86event\u6807\u8bb0\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2aea0bcb673\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2aea0bcb673\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E6%95%85%E9%9A%9C%E7%8E%B0%E8%B1%A1\" >\u6545\u969c\u73b0\u8c61<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E5%88%86%E6%9E%90%E6%8E%92%E6%9F%A5\" >\u5206\u6790\u6392\u67e5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E5%8E%9F%E5%9B%A0\" >\u539f\u56e0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E8%A7%A3%E5%86%B3%E5%BB%BA%E8%AE%AE\" >\u89e3\u51b3\u5efa\u8bae<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E8%BF%9E%E6%8E%A5%E9%87%8D%E7%94%A8\" >\u8fde\u63a5\u91cd\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E5%BF%AB%E9%80%9F%E5%9B%9E%E6%94%B6TIME_WAIT%E7%8A%B6%E6%80%81%E7%9A%84socket\" >\u5feb\u901f\u56de\u6536TIME_WAIT\u72b6\u6001\u7684socket<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E5%B0%86MSL%E5%80%BC%E7%BC%A9%E5%87%8F\" >\u5c06MSL\u503c\u7f29\u51cf<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gbase8.cn\/en\/10475\/#%E5%8F%82%E8%80%83\" >\u53c2\u8003<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%95%85%E9%9A%9C%E7%8E%B0%E8%B1%A1\"><\/span>\u6545\u969c\u73b0\u8c61<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8282\u70b9\u670d\u52a1\u51fa\u73b0event\u6807\u8bb0\uff0c\u4e14\u6709\u53ef\u80fd\u591a\u4e2a\u8282\u70b9\u540c\u65f6\u51fa\u73b0\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"597\" height=\"278\" src=\"https:\/\/www.gbase8.cn\/wp-content\/uploads\/2022\/08\/1661330260188.png\" alt=\"\" class=\"wp-image-10476\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%88%86%E6%9E%90%E6%8E%92%E6%9F%A5\"><\/span>\u5206\u6790\u6392\u67e5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u67e5\u770b\u8c03\u5ea6\u8282\u70b9gcluster\u7684express.log\u53d1\u73b0\u6bcf\u8fc7\u4e00\u6bb5\u65f6\u95f4\uff0c\u5c31\u51fa\u73b0\u5982\u4e0b\u7684\u62a5\u9519\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>2022-08-24 11:31:45.887 &#91;CPOOL2]&#91;WARN ]&#91;S:509107171]&#91;Q:1954774766]:Abnormal, failed in creating a connection to some node.\n2022-08-24 11:31:45.890 &#91;CPOOL2]&#91;WARN ]&#91;S:509107171]&#91;Q:1954774766]:Abnormal, can't create a connection. host:192.168.1.10,db:. Cause: Can't connect to GBase server on '192.168.1.10(cur_time:2022-08-24 11:31:45.890 used_time:0s)' (99)<\/code><\/pre>\n\n\n\n<p>\u770b\u9519\u8bef\uff0c\u662f\u65e0\u6cd5\u521b\u5efa\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>\u624b\u5de5\u8fd0\u884cgccli\uff0c\u80fd\u6b63\u786e\u767b\u5f55\uff0c\u786e\u8ba4\u4e0d\u662f\u957f\u65f6\u95f4\u5904\u4e8e\u95ee\u9898\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u67e5\u770b\u64cd\u4f5c\u7cfb\u7edf\u5f53\u524dTIME_WAIT\u8fde\u63a5\u6570\uff0c\u53d1\u73b0\u67092\u4e07\u591a\u4e2a<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;root@dsgbase1 gcluster]# netstat -anp|grep TIME_WAIT | wc -l\n22036<\/code><\/pre>\n\n\n\n<p>\u67e5\u770b\u64cd\u4f5c\u7cfb\u7edfsysctl\u53c2\u6570\uff0c\u53d1\u73b0\u672c\u5730\u7aef\u53e3\u53ef\u7528\u8303\u56f4\u662f2\u4e07\u4e2a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;root@dsgbase1 gcluster]# sysctl  -a | grep port\nnet.ipv4.ip_local_port_range = 30100    50000\n.....<\/code><\/pre>\n\n\n\n<p>\u95ee\u9898\u5b9a\u4f4d\u4e86\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8E%9F%E5%9B%A0\"><\/span>\u539f\u56e0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u64cd\u4f5c\u7cfb\u7edf\u5b58\u5728\u5927\u91cf\u7684tcp\u8fde\u63a5\uff0c\u6bcf\u4e2a\u8fde\u63a5\u90fd\u8981\u4e00\u4e2a\u672c\u5730\u7aef\u53e3\uff0c\u800c\u5f53\u672c\u5730\u7aef\u53e3\u90fd\u88ab\u5360\u7528\u540e\uff0c\u5c31\u4f1a\u51fa\u73b0\u65e0\u6cd5\u8fde\u63a5\u7684\u62a5\u9519\u3002<\/p>\n\n\n\n<p>\u800c\u64cd\u4f5c\u7cfb\u7edf\u672c\u8eab\uff0c\u5bf9\u8fde\u63a5\u662f\u6709\u5185\u90e8\u7684\u6dd8\u6c70\u673a\u5236\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E5%86%B3%E5%BB%BA%E8%AE%AE\"><\/span>\u89e3\u51b3\u5efa\u8bae<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u63d0\u9ad8\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u8fde\u63a5\u7684\u6dd8\u6c70\u7a0b\u5ea6\uff0c\u4e00\u822c\u5305\u542b\u5982\u4e0b\u51e0\u4e2asysctl\u7684\u53c2\u6570<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%BF%9E%E6%8E%A5%E9%87%8D%E7%94%A8\"><\/span>\u8fde\u63a5\u91cd\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5141\u8bb8\u5c06TIME_WAIT\u72b6\u6001\u7684socket\u91cd\u65b0\u7528\u4e8e\u65b0\u7684TCP\u8fde\u63a5<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>net.ipv4.tcp_tw_reuse = 1 #\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%BF%AB%E9%80%9F%E5%9B%9E%E6%94%B6TIME_WAIT%E7%8A%B6%E6%80%81%E7%9A%84socket\"><\/span>\u5feb\u901f\u56de\u6536TIME_WAIT\u72b6\u6001\u7684socket<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>net.ipv4.tcp_tw_recycle = 1#\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%B0%86MSL%E5%80%BC%E7%BC%A9%E5%87%8F\"><\/span>\u5c06MSL\u503c\u7f29\u51cf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>linux\u4e2dMSL\u7684\u503c\u9ed8\u8ba4\u4e3a60s\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7f29\u51cfMSL\u503c\u6765\u4f7f\u5f97\u4e3b\u52a8\u5173\u95ed\u8fde\u63a5\u4e00\u7aef\u7531TIME_WAIT\u72b6\u6001\u5230\u5173\u95ed\u72b6\u6001\u7684\u65f6\u95f4\u51cf\u5c11<\/p>\n\n\n\n<p>\u4f46\u662f\u8fd9\u6837\u505a\u4f1a\u5bfc\u81f4\u5ef6\u8fdf\u62a5\u6587\u65e0\u6cd5\u6e05\u9664\u4ee5\u53ca\u4e3b\u52a8\u5173\u95ed\u8fde\u63a5\u4e00\u7aef\u4e0d\u80fd\u6536\u5230\u91cd\u4f20\u6765\u7684FIN\u8bf7\u6c42\uff0c\u4e5f\u4f1a\u5f71\u54cd\u5f88\u591a\u57fa\u4e8eTCP\u7684\u5e94\u7528\u7684\u8fde\u63a5\u590d\u7528\u548c\u8c03\u4f18\u6240\u4ee5\u5728\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u9700\u8981\u8c28\u614e\u64cd\u4f5c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>net.ipv4.tcp_fin_timeout = 30<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.modb.pro\/db\/166108\">https:\/\/www.modb.pro\/db\/166108<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u8fd0\u7ef4\u6848\u4f8b\uff0cGBase 8a \u6570\u636e\u5e93\u67d0\u4e9b\u64cd\u4f5c\u65f6\uff0c\u8282\u70b9\u670d\u52a1\u5185\u90e8\u4f1a\u4e34\u65f6\u521b\u5efa\u8fde\u63a5\uff0c\u64cd\u4f5c\u5b8c\u6210\u540e\u5173\u95ed\uff0c\u5982\u679c\u5728\u67d0\u4e2a\u9636\u6bb5\u65f6\u64cd\u4f5c\u7cfb\u7edf\u6ca1\u6709\u53ef\u7528\u7684\u672c\u5730\u7aef\u53e3\uff0c\u5c06\u4f1a\u9020\u6210\u8fde\u63a5\u5931\u8d25\uff0c\u6d89\u53ca\u7684\u8868\u4e5f\u5c06\u65e0\u6cd5\u786e\u4fdd\u72b6\u6001\u6b63\u786e\uff0c\u4e8e\u662f\u8bbe\u7f6e\u4e86event\u6807\u8bb0\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-10475","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/10475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=10475"}],"version-history":[{"count":9,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/10475\/revisions"}],"predecessor-version":[{"id":10485,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/10475\/revisions\/10485"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=10475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=10475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=10475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}