{"id":30738,"date":"2026-05-13T10:00:00","date_gmt":"2026-05-13T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30738"},"modified":"2026-05-16T23:16:39","modified_gmt":"2026-05-16T15:16:39","slug":"linux-swappiness-oom-killer","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/linux\/linux-swappiness-oom-killer\/","title":{"rendered":"Linux swappiness \u4e0e OOM Killer \u8c03\u4f18\u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Linux swappiness \u4e0e OOM Killer \u8c03\u4f18\u793a\u610f\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/05\/linux-swappiness-oom-killer-cover.webp\" \/><\/p>\n<p>\u672c\u6587\u6559\u4f60\u5982\u4f55\u7406\u89e3\u5e76\u8c03\u4f18 Linux \u5185\u6838\u7684 swappiness \u53c2\u6570\u4e0e OOM\uff08Out Of Memory\uff09Killer \u884c\u4e3a\uff0c\u8986\u76d6\u539f\u7406\u3001\u5178\u578b\u573a\u666f\u4e0e\u6392\u67e5\u8def\u5f84\u3002\u8bfb\u5b8c\u4f60\u4f1a\u5f97\u5230\u4e09\u4ef6\u4ea7\u51fa\uff1a\u6309\u6570\u636e\u5e93\u3001\u5bb9\u5668\u3001\u684c\u9762\u4e09\u7c7b\u8d1f\u8f7d\u7684 swappiness \u53d6\u503c\u5efa\u8bae\uff1b\u9488\u5bf9 OOM \u4e8b\u4ef6\u7684\u6839\u56e0\u5b9a\u4f4d\u6d41\u7a0b\uff1b\u9488\u5bf9\u5173\u952e\u8fdb\u7a0b\u505a OOM \u8c41\u514d\u4e0e\u4f18\u5148\u7ea7\u8c03\u6574\u7684\u5b9e\u6218\u65b9\u6cd5\u3002<\/p>\n<h2>\u4e00\u3001swappiness \u4e0d\u662f\u628a\u5185\u5b58\u6362\u5230\u78c1\u76d8\u7684\u5f00\u5173<\/h2>\n<p>\u5f88\u591a\u6587\u6863\u628a swappiness \u63cf\u8ff0\u6210&#8221;swap \u503e\u5411\u7a0b\u5ea6&#8221;\uff0c0 \u8868\u793a\u6c38\u4e0d swap\u3001100 \u8868\u793a\u79ef\u6781 swap\uff0c\u8fd9\u662f\u5e38\u89c1\u8bef\u89e3\u3002\u5b83\u5b9e\u9645\u662f\u5185\u6838\u56de\u6536\u533f\u540d\u5185\u5b58\uff08anonymous\uff0c\u8fdb\u7a0b\u5806\u6808\u8fd9\u7c7b\u6ca1\u6709\u6587\u4ef6\u5bf9\u5e94\u7684\u5185\u5b58\uff09\u4e0e\u56de\u6536\u6587\u4ef6\u7f13\u5b58\uff08page cache\uff09\u7684\u76f8\u5bf9\u6743\u91cd\u3002swappiness=60 \u65f6\u5927\u81f4\u610f\u5473\u7740\u540c\u7b49\u6c34\u4f4d\u4e0b\u533f\u540d\u5185\u5b58 60\u3001\u6587\u4ef6\u7f13\u5b58 140 \u7684\u56de\u6536\u503e\u5411\u6bd4\u4f8b\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u8fd9\u70b9\u5173\u952e\uff1f\u56e0\u4e3a swappiness=0 \u5e76\u4e0d\u4f1a\u8ba9\u7cfb\u7edf\u62d2\u7edd swap\uff0c\u53ea\u662f\u5728\u5185\u5b58\u7d27\u5f20\u65f6\u4f18\u5148\u56de\u6536 page cache\u3002\u5982\u679c page cache \u90fd\u88ab\u56de\u6536\u5149\u4e86\u5185\u5b58\u4ecd\u4e0d\u591f\uff0c\u7167\u6837\u4f1a\u52a8\u7528 swap\u3002\u540c\u6837\u5730 swappiness=100 \u4e5f\u4e0d\u4f1a\u8ba9\u6b63\u5e38\u8fd0\u884c\u7684\u7cfb\u7edf\u63d0\u524d swap\uff0c\u53ea\u662f\u5728\u538b\u529b\u4e0a\u6765\u65f6\u66f4\u79ef\u6781\u3002\u4e91\u670d\u52a1\u5668\uff08\u57fa\u4e8e\u865a\u62df\u5316\u7684\u5f39\u6027\u8ba1\u7b97\u8d44\u6e90\uff09\u901a\u5e38\u4f1a\u6309\u5b98\u65b9\u955c\u50cf\u7ed9\u4e00\u4e2a\u9ed8\u8ba4\u503c\uff08\u591a\u6570 60\uff09\uff0c\u76f8\u5173\u9009\u578b\u53ef\u53c2\u8003 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/cloud-server-buying-guide\/\">\u4e91\u670d\u52a1\u5668\u9009\u8d2d\u6307\u5357<\/a>\u3002<\/p>\n<h2>\u4e8c\u3001\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u53d6\u503c\u5efa\u8bae<\/h2>\n<p>\u6309\u8d1f\u8f7d\u7c7b\u578b\u7ed9\u51fa\u5b9e\u6218\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u6570\u636e\u5e93\u4e3b\u673a\uff08MySQL\u3001PostgreSQL\u3001Redis\uff09\uff1a1 \u6216 10\uff0c\u76ee\u6807\u662f\u51e0\u4e4e\u4e0d swap\uff0c\u8ba9 buffer pool \u4e0e page cache \u5145\u5206\u5229\u7528<\/li>\n<li>\u901a\u7528 Web \u5e94\u7528\u670d\u52a1\u5668\uff1a10-30\uff0c\u7559\u51fa\u5c0f\u91cf swap \u7f13\u51b2\u7a81\u53d1\uff0c\u4f46\u4e0d\u79ef\u6781\u6362\u51fa<\/li>\n<li>\u5bb9\u5668\u4e3b\u673a\u4e0e Kubernetes \u8282\u70b9\uff1a10\uff0c\u914d\u5408 <code>vm.overcommit_memory=1<\/code> \u4e0e\u8282\u70b9\u4e0a swap \u5173\u95ed\u4f7f\u7528<\/li>\n<li>\u684c\u9762\u5de5\u4f5c\u7ad9\uff1a60-100\uff0c\u591a\u4efb\u52a1\u4e0b\u8ba9\u5185\u6838\u79ef\u6781\u56de\u6536\u4ee5\u907f\u514d OOM \u5f39\u7a97<\/li>\n<li>\u5907\u4efd\u4e0e\u6279\u5904\u7406\u673a\uff1a30-60\uff0cI\/O \u5bc6\u96c6\u4e14\u5185\u5b58\u538b\u529b\u6ce2\u52a8\u5927\uff0c\u9002\u5ea6 swap \u53cd\u800c\u7a33<\/li>\n<\/ul>\n<p>\u8bbe\u7f6e\u65b9\u6cd5\uff1a\u4e34\u65f6 <code>sysctl -w vm.swappiness=10<\/code>\uff0c\u6301\u4e45\u5316\u5199 <code>\/etc\/sysctl.d\/99-memory.conf<\/code>\u3002\u9a8c\u8bc1\u7528 <code>sysctl vm.swappiness<\/code> \u6216 <code>cat \/proc\/sys\/vm\/swappiness<\/code>\u3002\u914d\u5408 MySQL \u90e8\u7f72\u7684\u5185\u5b58\u7ba1\u7406\u53ef\u53c2\u8003 <a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/us-vps-deployment-tutorial-guide\/\">\u7f8e\u56fd VPS \u90e8\u7f72\u6559\u7a0b<\/a> \u4e2d\u7684\u5b9e\u4f8b\u89c4\u5212\u7ae0\u8282\u3002<\/p>\n<h2>\u4e09\u3001OOM Killer \u7684\u6253\u5206\u4e0e\u9009\u62e9\u673a\u5236<\/h2>\n<p>\u5f53\u7cfb\u7edf\u5185\u5b58\u4e0e swap \u90fd\u8017\u5c3d\u65f6\uff0cOOM Killer \u542f\u52a8\u5e76\u6740\u6389\u4e00\u4e2a\u6216\u591a\u4e2a\u8fdb\u7a0b\u91ca\u653e\u5185\u5b58\u3002\u5b83\u7684\u9009\u62e9\u4f9d\u636e\u662f <code>oom_score<\/code>\uff0c\u7531\u5185\u6838\u6839\u636e\u8fdb\u7a0b RSS\uff08Resident Set Size\uff0c\u7269\u7406\u5185\u5b58\u5360\u7528\uff09\u3001\u8fd0\u884c\u65f6\u957f\u3001\u5b50\u8fdb\u7a0b\u6570\u3001\u7528\u6237\u8c03\u6574\u503c\uff08oom_score_adj\uff09\u7efc\u5408\u7b97\u51fa\u3002\u5206\u6570\u8d8a\u9ad8\u8d8a\u5bb9\u6613\u88ab\u6740\u3002<\/p>\n<p>\u5982\u4f55\u770b\u8fdb\u7a0b\u7684\u5f53\u524d\u5206\u6570\uff1f<code>cat \/proc\/&lt;pid&gt;\/oom_score<\/code> \u76f4\u63a5\u8bfb\u3002\u8981\u628a\u5173\u952e\u8fdb\u7a0b\u4ece OOM \u5217\u8868\u91cc&#8221;\u6321\u4e00\u6321&#8221;\uff0c\u5199 oom_score_adj\uff1a<\/p>\n<pre><code class=\"language-bash\">echo -1000 &gt; \/proc\/$(pidof mysqld)\/oom_score_adj\n<\/code><\/pre>\n<p>\u53d6\u503c\u8303\u56f4 -1000 \u5230 1000\uff0c-1000 \u7b49\u4e8e\u7edd\u5bf9\u8c41\u514d\uff08\u65e9\u671f\u5185\u6838\u53eb oom_disable\uff09\uff0c1000 \u7b49\u4e8e\u4f18\u5148\u9001\u6b7b\u3002systemd unit \u6587\u4ef6\u7528 <code>OOMScoreAdjust=-900<\/code> \u8bbe\u5b9a\u3002\u6ce8\u610f\u628a\u5b88\u62a4\u8fdb\u7a0b\u8c41\u514d\u540e\uff0cOOM \u53d1\u751f\u65f6\u4f1a\u53bb\u627e\u5176\u4ed6\u8fdb\u7a0b\uff0c\u53ef\u80fd\u628a\u65e0\u8f9c\u7684\u8f85\u52a9\u670d\u52a1\u6740\u6389\uff0c\u6240\u4ee5\u8c41\u514d\u53ea\u7ed9\u771f\u6b63\u5173\u952e\u7684\u6838\u5fc3\u670d\u52a1\u3002<\/p>\n<h2>\u56db\u3001cgroup v2 \u4e0b\u7684 memory.oom.group \u4e0e\u9650\u989d<\/h2>\n<p>cgroup v2 \u7ed9\u5bb9\u5668\/\u670d\u52a1\u7ea7\u522b\u7684 OOM \u63a7\u5236\u5e26\u6765\u8d28\u53d8\u3002<code>memory.max<\/code> \u8bbe\u786c\u4e0a\u9650\uff0c\u8d85\u8fc7\u5c31\u89e6\u53d1 cgroup \u5185\u7684 OOM\uff1b<code>memory.high<\/code> \u8bbe\u8f6f\u4e0a\u9650\uff0c\u8d85\u8fc7\u4f1a\u89e6\u53d1\u56de\u6536\u800c\u975e\u6740\u8fdb\u7a0b\uff1b<code>memory.oom.group<\/code> \u8bbe\u4e3a 1 \u65f6\uff0cOOM \u4f1a\u6740\u6389\u6574\u4e2a cgroup \u5185\u6240\u6709\u8fdb\u7a0b\u800c\u975e\u53ea\u6740\u4e00\u4e2a\u3002<\/p>\n<p>\u5bb9\u5668\u573a\u666f\u4e0b\u8fd9\u5957\u7ec4\u5408\u975e\u5e38\u5b9e\u7528\uff1a\u628a\u6bcf\u4e2a\u670d\u52a1\u653e\u8fdb\u72ec\u7acb cgroup\uff0cmemory.max \u6309\u9700\u6c42 +20% \u8bbe\u5b9a\uff0cmemory.oom.group=1 \u4fdd\u8bc1\u5b50\u8fdb\u7a0b\u6b7b\u5219\u5168\u6b7b\uff0c\u4fbf\u4e8e\u5b88\u62a4\u8fdb\u7a0b\u62c9\u8d77\u6574\u4f53\u91cd\u542f\u3002CDN\uff08Content Delivery Network\uff0c\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u8fb9\u7f18\u8282\u70b9\u7684\u591a\u670d\u52a1\u5171\u5b58\u673a\u5668\u4e5f\u7528\u5f97\u4e0a\uff0c\u76f8\u5173\u8fb9\u7f18\u7f13\u5b58\u4e0e\u538b\u7f29\u7b56\u7565\u53ef\u7ee7\u7eed\u770b <a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/wordpress-w3-total-cache-tuning\/\">W3 Total Cache \u8c03\u4f18\u5b9e\u6218<\/a> \u4e0e <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/wordpress-hk-hosting-guide\/\">WordPress \u9999\u6e2f\u4e3b\u673a\u9009\u8d2d\u6307\u5357<\/a>\u3002<\/p>\n<h2>\u4e94\u3001\u5b9a\u4f4d OOM \u4e8b\u4ef6\u7684\u6839\u56e0<\/h2>\n<p>OOM \u53d1\u751f\u540e dmesg \u4e0e \/var\/log\/messages \u4f1a\u7559\u4e0b\u4e00\u6bb5\u5b8c\u6574\u7684\u5185\u5b58\u5feb\u7167\u4e0e\u5019\u9009\u6253\u5206\u5217\u8868\u3002\u5173\u952e\u4fe1\u606f\u770b\u56db\u70b9\uff1a<\/p>\n<ul>\n<li>&#8220;Out of memory: Killed process xxx&#8221; \u8fd9\u4e00\u884c\u7684\u8fdb\u7a0b\u540d\u4e0e RSS<\/li>\n<li>&#8220;oom-kill:&#8221; \u884c\u91cc cgroup \u8def\u5f84\uff0c\u786e\u5b9a\u662f\u5168\u5c40 OOM \u8fd8\u662f cgroup OOM<\/li>\n<li>&#8220;Mem-Info:&#8221; \u540e\u9762\u7684 free\u3001available\u3001buffer\/cache\u3001swap free \u5404\u9879<\/li>\n<li>\u6574\u6bb5\u8fdb\u7a0b\u5217\u8868\u91cc RSS \u6700\u9ad8\u7684\u51e0\u4e2a\uff0c\u662f\u5426\u662f\u9884\u671f\u7684<\/li>\n<\/ul>\n<p>journalctl -k &#8211;since &#8220;1 hour ago&#8221; \u4e5f\u80fd\u67e5\u5185\u6838\u65e5\u5fd7\uff0c\u65f6\u95f4\u8fc7\u6ee4\u66f4\u65b9\u4fbf\u3002\u5b9a\u4f4d\u5230\u8087\u4e8b\u8fdb\u7a0b\u540e\u518d\u51b3\u5b9a\u65b9\u6848\uff1a\u5185\u5b58\u6cc4\u6f0f\u4fee\u4ee3\u7801\u3001\u914d\u7f6e\u8fc7\u5927\u6539\u914d\u7f6e\u3001\u673a\u5668\u914d\u7f6e\u4e0d\u591f\u5347\u5185\u5b58\u3001\u5173\u952e\u8fdb\u7a0b\u52a0 OOM \u8c41\u514d\u3002\u4e8b\u6545\u590d\u76d8\u5efa\u8bae\u628a\u6bcf\u6b21 OOM \u90fd\u767b\u8bb0\u5230\u5185\u90e8 ticket \u7cfb\u7edf\uff0c\u957f\u671f\u770b\u5c31\u80fd\u53d1\u73b0\u54ea\u4e9b\u7ec4\u4ef6\u662f\u5e38\u5ba2\u3002\u66f4\u591a\u670d\u52a1\u5668\u7ef4\u62a4\u53ef\u7ee7\u7eed\u9605\u8bfb <a href=\"https:\/\/cn.hostease.com\/blog\/category\/wordpress\/\">WordPress \u5206\u7c7b\u4e0b\u7684\u76f8\u5173\u6587\u7ae0<\/a>\u3002<\/p>\n<h2>\u516d\u3001\u8981\u4e0d\u8981\u5728\u751f\u4ea7\u5f00 swap<\/h2>\n<p>\u8001\u6d3e\u89c2\u70b9\u662f&#8221;\u52a0\u5927 swap \u7b49\u4e8e\u591a\u4e00\u4efd\u4fdd\u9669&#8221;\uff0c\u73b0\u4ee3\u89c2\u70b9\u66f4\u503e\u5411&#8221;\u5173\u952e\u670d\u52a1\u5668\u7981 swap\u3001\u5bb9\u5668\u8282\u70b9\u5fc5\u987b\u7981 swap&#8221;\u3002\u7406\u7531\u662f swap \u4e00\u65e6\u88ab\u7528\uff0c\u4e1a\u52a1\u5ef6\u8fdf\u77ac\u95f4\u51e0\u5341\u5230\u51e0\u767e\u6beb\u79d2\uff0c\u76d1\u63a7\u544a\u8b66\u8fd8\u4e0d\u4e00\u5b9a\u51c6\u3002Kubernetes \u76f4\u5230 1.22 \u624d\u6b63\u5f0f\u652f\u6301\u8282\u70b9\u5f00 swap\uff0c\u4e14\u9ed8\u8ba4\u4ecd\u8981\u6c42\u5173\u95ed\u3002<\/p>\n<p>\u6298\u4e2d\u65b9\u6848\uff1a\u4fdd\u7559\u4e00\u4e2a 4-8GB \u7684 swap \u6587\u4ef6\uff0cswappiness \u8bbe\u4e3a 1 \u6216 10\uff0c\u4f5c\u4e3a OOM \u524d\u7684\u6700\u540e\u4e00\u9053\u7f13\u51b2\uff1b\u540c\u65f6\u914d\u4e0a\u78c1\u76d8\u7a7a\u95f4\u544a\u8b66\uff0c\u907f\u514d swap \u628a\u78c1\u76d8\u585e\u6ee1\u5f15\u53d1\u65b0\u95ee\u9898\u3002\u6570\u636e\u5e93\u4e3b\u673a\u4e00\u822c\u76f4\u63a5 swapoff -a \u5e76\u7981\u7528 swap fstab \u6761\u76ee\uff0c\u9760 buffer pool \u4e0e page cache \u81ea\u5df1\u7ba1\u7406\u5c31\u591f\u4e86\u3002<\/p>\n<p>\u628a swap \u4e0e zswap\u3001zram \u4e5f\u5bf9\u6bd4\u4e00\u4e0b\uff1azswap \u662f\u5185\u6838\u5185\u7f6e\u7684\u538b\u7f29 swap \u7f13\u5b58\uff0c\u80fd\u628a 4GB swap \u7b49\u6548\u653e\u5927\u5230 6-8GB\uff0c\u5bf9\u5185\u5b58\u7d27\u5f20\u4f46\u53c8\u4e0d\u60f3\u52a0\u78c1\u76d8 swap \u7684\u4e2d\u7b49\u673a\u5668\u53cb\u597d\uff1bzram \u5219\u662f\u628a\u4e00\u6bb5\u5185\u5b58\u5f53\u538b\u7f29\u5757\u8bbe\u5907\u76f4\u63a5\u7528\u4f5c swap\uff0c\u7eaf\u5185\u5b58\u65b9\u6848\uff0c\u684c\u9762\u4e0e\u5d4c\u5165\u5f0f\u5e38\u7528\u3002<\/p>\n<h2>\u4e03\u3001\u76d1\u63a7\u4e0e\u544a\u8b66\u5bf9\u63a5<\/h2>\n<p>OOM \u662f\u4f4e\u9891\u4f46\u9ad8\u5371\u4e8b\u4ef6\uff0c\u5fc5\u987b\u6709\u544a\u8b66\u3002\u4e09\u79cd\u4e3b\u6d41\u63a5\u6cd5\uff1a<\/p>\n<ul>\n<li>node-exporter \u6293 <code>node_vmstat_oom_kill<\/code> \u589e\u91cf\u8ba1\u6570\uff0c\u8d85\u9608\u503c\u544a\u8b66<\/li>\n<li>journald \u914d\u5408 vector\/Promtail \u628a &#8220;Out of memory&#8221; \u5173\u952e\u5b57\u63a8\u5230\u544a\u8b66\u7cfb\u7edf<\/li>\n<li>systemd \u7684 OnFailure= \u6307\u4ee4\u5728\u5173\u952e\u670d\u52a1\u6302\u6389\u65f6\u89e6\u53d1\u90ae\u4ef6\u6216\u673a\u5668\u4eba\u901a\u77e5<\/li>\n<\/ul>\n<p>\u544a\u8b66\u5185\u5bb9\u9664\u4e86&#8221;\u54ea\u4e2a\u8fdb\u7a0b\u88ab\u6740&#8221;\u4e4b\u5916\uff0c\u5efa\u8bae\u540c\u65f6\u9644\u4e0a\u4e8b\u53d1\u65f6\u7684\u5185\u5b58\u5feb\u7167\u3001top \u8fdb\u7a0b\u5217\u8868\u3001cgroup \u5360\u7528\uff0c\u4fbf\u4e8e\u590d\u76d8\u3002\u6bcf\u6b21 OOM \u90fd\u767b\u8bb0\u5230 ticket \u7cfb\u7edf\uff0c\u6309\u6708\u7edf\u8ba1\u5e38\u5ba2\u7ec4\u4ef6\uff0c\u9488\u5bf9\u6027\u6269\u5185\u5b58\u6216\u4fee\u4ee3\u7801\u3002\u8fd9\u5957\u673a\u5236\u575a\u6301\u4e0b\u6765\uff0cOOM \u5f15\u53d1\u7684\u6545\u969c\u4f1a\u660e\u663e\u51cf\u5c11\u3002<\/p>\n<p>\u76d1\u63a7\u4e4b\u5916\uff0c\u5bf9\u5185\u5b58\u4f7f\u7528\u505a\u957f\u671f\u8d8b\u52bf\u5206\u6790\u4e5f\u5f88\u6709\u4ef7\u503c\uff1a\u7a81\u7136\u51fa\u73b0\u7684\u5185\u5b58\u722c\u5347\u5f80\u5f80\u662f\u7f13\u5b58\u7c7b\u7ec4\u4ef6\u7684\u56de\u6536\u7b56\u7565\u53d8\u4e86\uff0c\u6216\u8005\u67d0\u4e2a\u7248\u672c\u4e0a\u7ebf\u5f15\u5165\u4e86\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h2>\n<p>swappiness \u4e0e OOM Killer \u662f\u5185\u5b58\u538b\u529b\u4e0b\u4e24\u4e2a\u76f8\u4e92\u914d\u5408\u7684\u65cb\u94ae\uff1a\u524d\u8005\u63a7\u5236\u56de\u6536\u503e\u5411\uff0c\u540e\u8005\u63a7\u5236\u6700\u540e\u4e00\u9053\u9632\u7ebf\u3002\u5efa\u8bae\u4f60\u6309\u672c\u6587\u987a\u5e8f\u843d\u5730\uff1a\u5148\u6309\u4e1a\u52a1\u7c7b\u578b\u9009 swappiness \u503c\u3001\u518d\u7ed9\u5173\u952e\u8fdb\u7a0b\u52a0 oom_score_adj \u6216 systemd OOMScoreAdjust\u3001\u6700\u540e\u7528 cgroup v2 \u505a\u670d\u52a1\u7ea7\u9694\u79bb\u3002\u5982\u679c\u4f60\u9700\u8981\u5728\u591a\u673a\u90e8\u7f72\uff0c\u53ef\u4ee5\u8003\u8651\u628a\u8fd9\u5957 sysctl \u4e0e systemd drop-in \u505a\u6210 Ansible \u89d2\u8272\u7edf\u4e00\u4e0b\u53d1\uff0c\u5e76\u628a OOM \u4e8b\u4ef6\u63a5\u5230 Prometheus alertmanager\u3002\u603b\u7ed3\u4e00\u4e0b\uff0c\u5185\u5b58\u8c03\u4f18\u7684\u76ee\u7684\u4e0d\u662f\u6d88\u706d OOM\uff0c\u800c\u662f\u8ba9 OOM \u53d1\u751f\u65f6\u5f71\u54cd\u9762\u53ef\u63a7\u3001\u5b9a\u4f4d\u8def\u5f84\u6e05\u6670\u3001\u6062\u590d\u65f6\u95f4\u53ef\u9884\u671f\uff0c\u8fd9\u624d\u662f\u7a33\u6001\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7cfb\u7edf\u8bb2\u89e3 Linux swappiness \u53d6\u503c\u542b\u4e49\u3001OOM Killer 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