{"id":1902,"date":"2017-10-16T11:11:35","date_gmt":"2017-10-16T03:11:35","guid":{"rendered":"http:\/\/tixbay.net\/?p=1902"},"modified":"2019-07-05T01:04:56","modified_gmt":"2019-07-04T17:04:56","slug":"oom_killer","status":"publish","type":"post","link":"https:\/\/tixbay.net\/?p=1902","title":{"rendered":"OOM_Killer"},"content":{"rendered":"<p><a href=\"https:\/\/tixbay.net\/?attachment_id=1903\" rel=\"attachment wp-att-1903\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-1903\" src=\"https:\/\/tixbay.net\/wp-content\/uploads\/2017\/10\/1508123288120.jpg\" alt=\"\" width=\"300\" height=\"54\"><\/a><\/p>\n<p>\u670d\u52a1\u5668\u4e0a\u8dd1\u4e00\u4e2ageth\uff0c\u4e00\u6bb5\u65f6\u95f4\u540e\u83ab\u540d\u88abKill\uff0c\u67e5\u8d44\u6599\u539f\u6765\u89e6\u53d1\u4e86\u5185\u5b58\u4fdd\u62a4\uff0c\u9632\u6b62\u5185\u5b58\u4e0d\u8db3\u5bfc\u81f4\u7cfb\u7edf\u5931\u53bb\u54cd\u5e94\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u7f51\u4e0a\u8d44\u6599\uff1a<br \/>\nOOM_killer\u662fLinux\u81ea\u6211\u4fdd\u62a4\u7684\u65b9\u5f0f\uff0c\u5f53\u5185\u5b58\u4e0d\u8db3\u65f6\u4e0d\u81f3\u4e8e\u51fa\u73b0\u592a\u4e25\u91cd\u95ee\u9898\uff0c\u6709\u70b9\u58ee\u58eb\u65ad\u8155\u7684\u610f\u5473<br \/>\n\u5728kernel 2.6\uff0c\u5185\u5b58\u4e0d\u8db3\u5c06\u5524\u9192oom_killer\uff0c\u6311\u51fa\/proc\/\/oom_score\u6700\u5927\u8005\u5e76\u5c06\u4e4bkill\u6389<\/p>\n<p>\u4e3a\u4e86\u4fdd\u62a4\u91cd\u8981\u8fdb\u7a0b\u4e0d\u88aboom-killer\u6389\uff0c\u6211\u4eec\u53ef\u4ee5\uff1aecho -17 &gt; \/proc\/\/oom_adj,-17\u8868\u793a\u7981\u7528OOM<br \/>\n\u6211\u4eec\u4e5f\u53ef\u4ee5\u5bf9\u628a\u6574\u4e2a\u7cfb\u7edf\u7684OOM\u7ed9\u7981\u7528\u6389\uff1a<br \/>\nsysctl -w vm.panic_on_oom=1 \uff08\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5f00\u542f\uff09<br \/>\nsysctl -p<\/p>\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u6709\u4e9b\u65f6\u5019 free -m \u65f6\u8fd8\u6709\u5269\u4f59\u5185\u5b58\uff0c\u4f46\u8fd8\u662f\u4f1a\u89e6\u53d1OOM-killer\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u8fdb\u7a0b\u5360\u7528\u4e86\u7279\u6b8a\u5185\u5b58\u5730\u5740<\/p>\n<p>\u5e73\u65f6\u6211\u4eec\u5e94\u8be5\u7559\u610f\u4e0b\u65b0\u8fdb\u6765\u7684\u8fdb\u7a0b\u5185\u5b58\u4f7f\u7528\u91cf\uff0c\u514d\u5f97\u7cfb\u7edf\u91cd\u8981\u7684\u4e1a\u52a1\u8fdb\u7a0b\u88ab\u65e0\u8f9c\u7275\u8fde<br \/>\n\u53ef\u7528 top M \u67e5\u770b\u6700\u6d88\u8017\u5185\u5b58\u7684\u8fdb\u7a0b\uff0c\u4f46\u4e5f\u4e0d\u662f\u8fdb\u7a0b\u4e00\u8d85\u8fc7\u5c31\u4f1a\u89e6\u53d1oom_killer<br \/>\n\u53c2\u6570\/proc\/sys\/vm\/overcommit_memory\u53ef\u4ee5\u63a7\u5236\u8fdb\u7a0b\u5bf9\u5185\u5b58\u8fc7\u91cf\u4f7f\u7528\u7684\u5e94\u5bf9\u7b56\u7565<br \/>\n\u5f53overcommit_memory=0 \u5141\u8bb8\u8fdb\u7a0b\u8f7b\u5fae\u8fc7\u91cf\u4f7f\u7528\u5185\u5b58\uff0c\u4f46\u5bf9\u4e8e\u5927\u91cf\u8fc7\u8f7d\u8bf7\u6c42\u5219\u4e0d\u5141\u8bb8(\u9ed8\u8ba4\uff09<br \/>\n\u5f53overcommit_memory=1 \u6c38\u8fdc\u5141\u8bb8\u8fdb\u7a0bovercommit<br \/>\n\u5f53overcommit_memory=2 \u6c38\u8fdc\u7981\u6b62overcommit<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u670d\u52a1\u5668\u4e0a\u8dd1\u4e00\u4e2ageth\uff0c\u4e00\u6bb5\u65f6\u95f4\u540e\u83ab\u540d\u88abKill\uff0c\u67e5\u8d44\u6599\u539f\u6765\u89e6\u53d1\u4e86\u5185\u5b58\u4fdd\u62a4\uff0c\u9632\u6b62 &hellip;<\/p>\n<p class=\"read-more\"><a href=\"https:\/\/tixbay.net\/?p=1902\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1902","post","type-post","status-publish","format-standard","hentry","category-moo"],"_links":{"self":[{"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/posts\/1902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tixbay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1902"}],"version-history":[{"count":4,"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/posts\/1902\/revisions"}],"predecessor-version":[{"id":2165,"href":"https:\/\/tixbay.net\/index.php?rest_route=\/wp\/v2\/posts\/1902\/revisions\/2165"}],"wp:attachment":[{"href":"https:\/\/tixbay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tixbay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tixbay.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}