{"id":208,"date":"2024-08-23T14:08:41","date_gmt":"2024-08-23T06:08:41","guid":{"rendered":"\/\/hqidi.com\/?p=208"},"modified":"2024-08-23T14:08:41","modified_gmt":"2024-08-23T06:08:41","slug":"%e9%98%bf%e9%87%8c%e4%ba%9199%e5%85%83%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%bb%ba%e8%ae%ae%e6%89%93%e5%bc%80%e8%99%9a%e6%8b%9f%e5%86%85%e5%ad%98","status":"publish","type":"post","link":"https:\/\/hqidi.com\/208.html","title":{"rendered":"\u963f\u91cc\u4e9199\u5143\u670d\u52a1\u5668\u5efa\u8bae\u6253\u5f00\u865a\u62df\u5185\u5b58"},"content":{"rendered":"<p><img decoding=\"async\" src=\"\/\/hqidi.com\/img\/208\/1.png\" alt=\"\" \/><\/p>\n<p>\u624b\u673a WIFI \u56fe\u6807\u8fb9\u4e0a\u7a81\u7136\u51fa\u73b0\u4e86\u4e2a\u53f9\u53f7\uff0c\u8fd9\u610f\u5473\u7740\uff0c\u6211\u535a\u5ba2\u5d29\u4e86\uff0c\u6253\u5f00\u6d4f\u89c8\u5668\u4e00\u770b\uff0c\u679c\u7136\u6253\u4e0d\u5f00\u535a\u5ba2\u4e3b\u9875\u3002<\/p>\n<p>\u5f53\u65f6\u6ca1\u7a7a\uff0c\u6ca1\u7ba1\uff0c\u95f2\u4e0b\u6765\u540e\uff0c\u767b\u5f55\u670d\u52a1\u5668 dmesg \u4e00\u770b<\/p>\n<pre class=\"prettyprint\" >\r\n[3456170.533426] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=aliyun.service,mems_allowed=0,global_oom,task_memcg=\/system.slice\/dnf-makecache.service,task=dnf,pid=1533659,uid=0\r\n[3456170.533440] Out of memory: Killed process 1533659 (dnf) total-vm:1016164kB, anon-rss:736388kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:1612kB oom_score_adj:0\r\n<\/pre>\n<p>\u539f\u6765\u662f dnf \u8fdb\u7a0b\u5360\u7528\u8fc7\u591a\u7684\u5185\u5b58\uff0c\u540e\u6765\u89e6\u53d1\u4e86 OOM Kill \uff0cdnf-makecache \u662f\u4e00\u4e2a\u670d\u52a1\uff0c\u5b83\u4f1a\u5b9a\u671f\u5237\u65b0\u8f6f\u4ef6\u5305\u7f13\u5b58\uff0c\u4ee5\u4fbf dnf \u67e5\u8be2\u66f4\u5feb\u3002\u8fd9\u4e2a\u8fdb\u7a0b\u901a\u5e38\u4f1a\u5728\u7cfb\u7edf\u7a7a\u95f2\u65f6\u81ea\u52a8\u8fd0\u884c\u3002\u5360\u7528\u8fc7\u591a\u5185\u5b58\u7684\u539f\u56e0\u53ef\u80fd\u662f\u6211\u8bbe\u7684\u4e00\u4e9b\u8f6f\u4ef6\u6e90\u7f51\u7edc\u4e0d\u53ef\u8fbe\u3002\u76f4\u63a5\u628a dnf-makecache.service \u5173\u6389\u5427\uff0c\u7528\u5904\u4e0d\u5927\u3002<br \/>\n\u53ef\u4ee5\u4f7f\u7528 --now \u9009\u9879\u6765\u540c\u65f6\u505c\u6b62\u548c\u7981\u7528\u670d\u52a1\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsystemctl disable --now dnf-makecache.timer\r\nsystemctl disable --now dnf-makecache.service\r\nsystemctl stop dnf-makecache.service\r\n<\/pre>\n<p>\u8fd8\u662f\u6253\u5f00\u865a\u62df\u5185\u5b58\u5427\uff0c\u867d\u7136\uff0c\u7528\u5230\u7684\u65f6\u5019\u4f1a\u6162\u4e00\u70b9\uff0c\u4e0d\u81f3\u4e8e\u7f51\u7ad9\u6574\u4e2a\u6253\u4e0d\u5f00\uff0c<br \/>\n\u4ee5\u4e0b\u662fRocky Linux release 9 \u7cfb\u7edf \u5f00\u542fswap\u6b65\u9aa4<\/p>\n<h3>\u521b\u5efa\u4e00\u4e2a Swap \u6587\u4ef6<\/h3>\n<p>\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u5927\u5c0f\uff08\u4f8b\u5982 2GB\uff09\u5e76\u521b\u5efa\u4e00\u4e2a swap \u6587\u4ef6\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsudo fallocate -l 2G \/swapfile\r\nfile \/swapfile \r\n<\/pre>\n<h3>\u8bbe\u7f6e\u6b63\u786e\u7684\u6743\u9650<\/h3>\n<p>\u786e\u4fdd\u53ea\u6709 root \u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u8be5\u6587\u4ef6\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsudo chmod 600 \/swapfile\r\n\r\n<\/pre>\n<h3>\u5c06\u6587\u4ef6\u914d\u7f6e\u4e3a Swap \u533a<\/h3>\n<p>\u683c\u5f0f\u5316\u6587\u4ef6\u4e3a swap \u7c7b\u578b\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsudo mkswap \/swapfile\r\n<\/pre>\n<p>\u542f\u7528 swap \u6587\u4ef6\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsudo swapon \/swapfile\r\nswapon --show\r\nfree -h\r\n<\/pre>\n<h3>\u81ea\u52a8\u542f\u7528 Swap \u6587\u4ef6<\/h3>\n<p>\u4e3a\u4e86\u786e\u4fdd\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u4ecd\u7136\u542f\u7528 swap \u6587\u4ef6\uff0c\u7f16\u8f91 \/etc\/fstab \u6587\u4ef6\uff1a<\/p>\n<pre class=\"prettyprint\" >\r\nsudo sed -i.bak '$ a \/swapfile swap swap defaults 0 0' \/etc\/fstab\r\n<\/pre>\n<p>\u8fd9\u4e2a sed \u547d\u4ee4\u4f1a\u5728 \/etc\/fstab \u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u4e4b\u540e\u8ffd\u52a0\u4e00\u884c \"\/swapfile swap swap defaults 0 0\"\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \/etc\/fstab.bak \u7684\u5907\u4efd\u6587\u4ef6\u3002<\/p>\n<h3>\u8c03\u6574 Swappiness\uff08\u53ef\u9009\uff09<\/h3>\n<p>Swappiness \u63a7\u5236\u5185\u6838\u4f7f\u7528 swap \u7684\u503e\u5411\u3002\u9ed8\u8ba4\u503c\u901a\u5e38\u4e3a 60\uff0c\u503c\u8d8a\u9ad8\uff0c\u5185\u6838\u8d8a\u503e\u5411\u4e8e\u4f7f\u7528 swap\u3002<\/p>\n<pre class=\"prettyprint\" >\r\nsysctl vm.swappiness=20\r\n\r\n<\/pre>\n<p>\u6211\u8bbe\u621020\u4e86\uff0c\u4f18\u5148\u7528\u771f\u5185\u5b58\uff0c\u5b9e\u5728\u4e0d\u884c\u7528\u5047\u5185\u5b58\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u624b\u673a WIFI \u56fe\u6807\u8fb9\u4e0a\u7a81\u7136\u51fa\u73b0\u4e86\u4e2a\u53f9\u53f7\uff0c\u8fd9\u610f\u5473\u7740\uff0c\u6211\u535a\u5ba2\u5d29\u4e86\uff0c\u6253\u5f00\u6d4f\u89c8\u5668\u4e00\u770b\uff0c\u679c\u7136\u6253\u4e0d\u5f00\u535a\u5ba2\u4e3b\u9875\u3002 \u5f53\u65f6\u6ca1\u7a7a\uff0c\u6ca1\u7ba1\uff0c\u95f2\u4e0b\u6765\u540e\uff0c\u767b\u5f55\u670d\u52a1\u5668 dmesg \u4e00\u770b [3456170.533426] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=aliyun.service,mems_allow...<\/p>\n<a class=\"read-more\" href=\"https:\/\/hqidi.com\/208.html\">\u9605\u8bfb\u5168\u6587 &raquo;<\/a>","protected":false},"author":1,"featured_media":3013,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[106],"class_list":["post-208","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-study","tag-swap"],"_links":{"self":[{"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/posts\/208"}],"collection":[{"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/comments?post=208"}],"version-history":[{"count":3,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/posts\/208\/revisions"}],"predecessor-version":[{"id":5828,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/posts\/208\/revisions\/5828"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/media\/3013"}],"wp:attachment":[{"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/media?parent=208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/categories?post=208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hqidi.com\/wp-json\/wp\/v2\/tags?post=208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}