{"id":1777,"date":"2020-07-09T22:48:24","date_gmt":"2020-07-09T13:48:24","guid":{"rendered":"https:\/\/obenkyolab.com\/?p=1777"},"modified":"2020-07-09T22:48:24","modified_gmt":"2020-07-09T13:48:24","slug":"centos7-out-of-memory-process-killed%e3%81%8c%e5%87%ba%e3%81%9f%e3%81%ae%e3%81%a7%e5%af%be%e5%87%a6","status":"publish","type":"post","link":"https:\/\/obenkyolab.com\/?p=1777","title":{"rendered":"CentOS7 Out Of Memory process killed\u304c\u51fa\u305f\u306e\u3067\u5bfe\u51e6"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/a><\/span><\/div>\n<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:\/\/obenkyolab.com\/?p=1777\/#%E3%82%A8%E3%83%A9%E3%83%BC\" >\u30a8\u30e9\u30fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/obenkyolab.com\/?p=1777\/#%E5%AF%BE%E5%87%A6\" >\u5bfe\u51e6<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%A8%E3%83%A9%E3%83%BC\"><\/span>\u30a8\u30e9\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3001\u77e5\u3089\u306a\u3044\u9593\u306bCentOS7\u4e0a\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u505c\u6b62\u3057\u3066\u3044\u305f\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\nout of memory kill process\n<\/pre><\/div>\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308dmysqld\u304ckill\u3055\u308c\u3066\u305f&#8230;<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n$ sudo cat \/var\/log\/messages | grep Killed\n\n kernel: Killed process 1241 (mysqld) total-vm:1675           012kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB\n kernel: Killed process 1645 (mysqld) total-vm:6585           04kB, anon-rss:18672kB, file-rss:568kB, shmem-rss:0kB\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AF%BE%E5%87%A6\"><\/span>\u5bfe\u51e6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3069\u3046\u3084\u3089\/proc\/PID\/oom_adj\u3092\u89e6\u308b\u3053\u3068\u3067\u3001Kill\u3055\u308c\u308b\u512a\u5148\u9806\u4f4d\u3092\u5909\u3048\u308c\u308b\u3089\u3057\u3044\u3002\u4eca\u56de\u306f\u53d6\u308a\u5408\u3048\u305a\u3001mysqld\u306e\u843d\u3061\u308b\u512a\u5148\u5ea6\u3092\u4e0b\u3052\u3066\u304a\u304f\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u30b5\u30fc\u30d0\u3092\u518d\u7acb\u3061\u4e0a\u3052\u3057\u3066\u3044\u305f\u306e\u3067\u3001ps aux\u3067mysql\u95a2\u9023\u306ePID\u3092\u78ba\u8a8d<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ ps aux\n...\nmysql      988  0.0  0.0   9692   652 ? \n...\nmysql     1243  0.1  2.8 1631236 29320 ?\n\n<\/pre><\/div>\n\n\n<p>\u3053\u306e\u4e8c\u3064\u306e\u512a\u5148\u5ea6\u3092-16(\u512a\u5148\u5ea6\u6700\u4f4e)\u306b\u5909\u66f4\u3057\u3066\u304a\u304d\u307e\u3059\u3002-17\u306b\u3059\u308b\u3068OOM killer\u306e\u5bfe\u8c61\u5916\u306b\u306a\u308b\u3089\u3057\u3044\u3067\u3059\u304c\u3001\u3055\u3059\u304c\u306b\u305d\u308c\u3082\u3084\u308a\u3059\u304e\u611f\u304c\u3042\u308b\u306e\u3067\u3001-16\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n$ echo -16 &gt; \/proc\/988\/oom_adj\n$ echo -16 &gt; \/proc\/1243\/oom_adj\n<\/pre><\/div>\n\n\n<p><\/p>\n\n\n\n<p>\u3068\u308a\u3042\u3048\u305a\u3001\u3057\u3070\u3089\u304f\u3053\u308c\u3067\u69d8\u5b50\u898b\u3057\u3066\u307f\u307e\u3059\u3002\u305f\u3060\u3001\u30e1\u30e2\u30ea\u304c\u67af\u6e07\u3057\u305f\u6839\u672c\u539f\u56e0\u306f\u5225\u306b\u3042\u308b\u3068\u601d\u3046\u306e\u3067\u3001\u3082\u3063\u3068\u8abf\u67fb\u3057\u305f\u307b\u3046\u304c\u826f\u3055\u305d\u3046\u3067\u3059\u304c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30a8\u30e9\u30fc \u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3001\u77e5\u3089\u306a\u3044\u9593\u306bCentOS7\u4e0a\u306e\u30b5\u30fc\u30d3\u30b9\u304c&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1779,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"ja","_original_post":"https:\/\/obenkyolab.com\/?p=1777","footnotes":""},"categories":[],"tags":[],"class_list":["post-1777","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","ja"],"_links":{"self":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/1777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1777"}],"version-history":[{"count":2,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/1777\/revisions"}],"predecessor-version":[{"id":1780,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/1777\/revisions\/1780"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/media\/1779"}],"wp:attachment":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}