{"id":48523,"date":"2025-07-30T12:26:59","date_gmt":"2025-07-30T04:26:59","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48523.html"},"modified":"2025-07-30T12:26:59","modified_gmt":"2025-07-30T04:26:59","slug":"%e6%b7%b1%e5%ba%a6%e5%ae%9e%e6%88%98%ef%bc%9aubuntu%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%95%e6%9c%ba%e6%8e%92%e6%9f%a5%e5%85%a8%e8%ae%b0%e5%bd%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48523.html","title":{"rendered":"\u6df1\u5ea6\u5b9e\u6218\uff1aUbuntu\u670d\u52a1\u5668\u5b95\u673a\u6392\u67e5\u5168\u8bb0\u5f55"},"content":{"rendered":"<h4>\u4ece\u7d27\u6025\u6551\u63f4\u5230\u6839\u56e0\u5206\u6790&#xff0c;\u9644\u81ea\u52a8\u5316\u8bca\u65ad\u5de5\u5177\u5f00\u53d1**<\/h4>\n<h5>\u4e00\u3001\u751f\u6b7b\u65f6\u901f&#xff1a;\u5b95\u673a\u73b0\u573a\u7d27\u6025\u54cd\u5e94<\/h5>\n<p>\u573a\u666f\u63cf\u8ff0&#xff1a;<\/p>\n<ul>\n<li>\u51cc\u66683:15&#xff0c;\u76d1\u63a7\u7cfb\u7edf\u544a\u8b66&#xff1a;\u751f\u4ea7\u73af\u5883Ubuntu 22.04\u670d\u52a1\u5668\u65e0\u54cd\u5e94<\/li>\n<li>\u7528\u6237\u8bbf\u95ee\u5168\u90e8\u8d85\u65f6&#xff0c;SSH\u8fde\u63a5\u5931\u8d25<\/li>\n<li>\u786c\u4ef6\u6307\u793a\u706f&#xff1a;\u7535\u6e90\u6b63\u5e38&#xff0c;\u786c\u76d8\u9ec4\u706f\u95ea\u70c1<\/li>\n<\/ul>\n<p>\u7b2c\u4e00\u9636\u6bb5\u54cd\u5e94\u6d41\u7a0b&#xff1a;<\/p>\n<p>  #mermaid-svg-sywa7EqzWh3ixmIu {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .error-icon{fill:#552222;}#mermaid-svg-sywa7EqzWh3ixmIu .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-sywa7EqzWh3ixmIu .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-sywa7EqzWh3ixmIu .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-sywa7EqzWh3ixmIu .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-sywa7EqzWh3ixmIu .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-sywa7EqzWh3ixmIu .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-sywa7EqzWh3ixmIu .marker{fill:#333333;stroke:#333333;}#mermaid-svg-sywa7EqzWh3ixmIu .marker.cross{stroke:#333333;}#mermaid-svg-sywa7EqzWh3ixmIu svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-sywa7EqzWh3ixmIu .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .cluster-label text{fill:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .cluster-label span{color:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .label text,#mermaid-svg-sywa7EqzWh3ixmIu span{fill:#333;color:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .node rect,#mermaid-svg-sywa7EqzWh3ixmIu .node circle,#mermaid-svg-sywa7EqzWh3ixmIu .node ellipse,#mermaid-svg-sywa7EqzWh3ixmIu .node polygon,#mermaid-svg-sywa7EqzWh3ixmIu .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-sywa7EqzWh3ixmIu .node .label{text-align:center;}#mermaid-svg-sywa7EqzWh3ixmIu .node.clickable{cursor:pointer;}#mermaid-svg-sywa7EqzWh3ixmIu .arrowheadPath{fill:#333333;}#mermaid-svg-sywa7EqzWh3ixmIu .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-sywa7EqzWh3ixmIu .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-sywa7EqzWh3ixmIu .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-sywa7EqzWh3ixmIu .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-sywa7EqzWh3ixmIu .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-sywa7EqzWh3ixmIu .cluster text{fill:#333;}#mermaid-svg-sywa7EqzWh3ixmIu .cluster span{color:#333;}#mermaid-svg-sywa7EqzWh3ixmIu div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-sywa7EqzWh3ixmIu :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span id=\"L-L-A-B\" class=\"edgeLabel L-LS-A&#039; L-LE-B\"><\/span><\/p>\n<p>         <span id=\"L-L-A-C\" class=\"edgeLabel L-LS-A&#039; L-LE-C\"><\/span><\/p>\n<p>         <span id=\"L-L-A-D\" class=\"edgeLabel L-LS-A&#039; L-LE-D\"><\/span><\/p>\n<p>         <span id=\"L-L-B-E\" class=\"edgeLabel L-LS-B&#039; L-LE-E\">\u6b63\u5e38<\/span><\/p>\n<p>         <span id=\"L-L-C-F\" class=\"edgeLabel L-LS-C&#039; L-LE-F\">\u9ec4\u706f\u5e38\u4eae<\/span><\/p>\n<p>         <span id=\"L-L-D-G\" class=\"edgeLabel L-LS-D&#039; L-LE-G\">\u7184\u706d<\/span><\/p>\n<p>          \u7269\u7406\u68c0\u67e5<\/p>\n<p>          \u7535\u6e90\u72b6\u6001<\/p>\n<p>          \u786c\u76d8\u6307\u793a\u706f<\/p>\n<p>          \u7f51\u7edc\u7aef\u53e3\u706f<\/p>\n<p>          IPMI\u8fdc\u7a0b\u63a7\u5236<\/p>\n<p>          \u786c\u76d8\u6545\u969c\u9884\u8b66<\/p>\n<p>          \u7f51\u7edc\u914d\u7f6e\u95ee\u9898<\/p>\n<hr \/>\n<h5>\u4e8c\u3001\u7d27\u6025\u6551\u63f4&#xff1a;\u56db\u6b65\u6062\u590d\u7cfb\u7edf\u8bbf\u95ee<\/h5>\n<p>1. \u901a\u8fc7IPMI\u5f3a\u5236\u91cd\u542f<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528IPMItool\u8fdc\u7a0b\u7ba1\u7406<\/span><br \/>\nipmitool <span class=\"token parameter variable\">-I<\/span> lanplus <span class=\"token parameter variable\">-H<\/span> <span class=\"token number\">10.0<\/span>.100.10 <span class=\"token parameter variable\">-U<\/span> admin <span class=\"token parameter variable\">-P<\/span> password power reset<\/p>\n<p>&#x1f4cc; \u6ce8\u610f&#xff1a;\u82e5\u786c\u4ef6\u652f\u6301&#xff0c;\u4f18\u5148\u901a\u8fc7BMC\/IPMI\u8bbf\u95ee&#xff0c;\u907f\u514d\u673a\u623f\u5954\u6ce2<\/p>\n<p>2. \u8fdb\u5165GRUB\u6551\u63f4\u6a21\u5f0f \u542f\u52a8\u65f6\u6309Shift\u8fdb\u5165GRUB\u83dc\u5355&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u9009\u62e9Advanced options &gt; recovery mode<\/span><br \/>\n<span class=\"token comment\"># \u6302\u8f7d\u6839\u76ee\u5f55\u8bfb\u5199\u6743\u9650<\/span><br \/>\n<span class=\"token function\">mount<\/span> <span class=\"token parameter variable\">-o<\/span> remount,rw \/<\/p>\n<p>3. \u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u5b8c\u6574\u6027<\/p>\n<p><span class=\"token comment\"># \u626b\u63cf\u6240\u6709\u5206\u533a\u9519\u8bef<\/span><br \/>\n<span class=\"token function\">fsck<\/span> <span class=\"token parameter variable\">-y<\/span> \/dev\/sda1<br \/>\n<span class=\"token function\">fsck<\/span> <span class=\"token parameter variable\">-y<\/span> \/dev\/sdb2<\/p>\n<p><span class=\"token comment\"># \u68c0\u67e5\u65e5\u5fd7\u8f93\u51fa\u5173\u952e\u4fe1\u606f<\/span><br \/>\n<span class=\"token function\">dmesg<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token parameter variable\">-i<\/span> <span class=\"token string\">&#039;error&#039;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-n<\/span> <span class=\"token number\">20<\/span><\/p>\n<p>4. \u4e34\u65f6\u7981\u7528\u6545\u969c\u670d\u52a1<\/p>\n<p><span class=\"token comment\"># \u505c\u6b62\u53ef\u80fd\u5f15\u53d1\u5d29\u6e83\u7684\u670d\u52a1<\/span><br \/>\nsystemctl stop <span class=\"token function\">docker<\/span> containerd kubelet<\/p>\n<hr \/>\n<h5>\u4e09\u3001\u6df1\u5ea6\u6392\u67e5&#xff1a;\u4e94\u7ef4\u6839\u56e0\u5206\u6790\u6cd5<\/h5>\n<p>1. \u5185\u5b58\u6cc4\u6f0f\u5206\u6790<\/p>\n<p><span class=\"token comment\"># \u68c0\u67e5\u5185\u6838OOM\u65e5\u5fd7<\/span><br \/>\n<span class=\"token function\">grep<\/span> <span class=\"token parameter variable\">-i<\/span> <span class=\"token string\">&#039;killed process&#039;<\/span> \/var\/log\/syslog<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u5185\u5b58\u4f7f\u7528\u5386\u53f2<\/span><br \/>\nsar <span class=\"token parameter variable\">-r<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-n<\/span> <span class=\"token number\">24<\/span><\/p>\n<p>\u5173\u952e\u6307\u6807&#xff1a;<\/p>\n<ul>\n<li>%memused &gt; 90% \u6301\u7eed2\u5c0f\u65f6<\/li>\n<li>kswapd0\u8fdb\u7a0bCPU\u5360\u7528100%<\/li>\n<\/ul>\n<p>2. CPU\u5f02\u5e38\u5b9a\u4f4d<\/p>\n<p><span class=\"token comment\"># 1. \u67e5\u770b\u6700\u8fd1\u9ad8\u8d1f\u8f7d\u8fdb\u7a0b<\/span><br \/>\njournalctl <span class=\"token parameter variable\">&#8211;since<\/span> <span class=\"token string\">&#034;2 hours ago&#034;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token parameter variable\">-i<\/span> <span class=\"token string\">&#039;overload&#039;<\/span><\/p>\n<p><span class=\"token comment\"># 2. \u751f\u6210CPU\u4f7f\u7528\u706b\u7130\u56fe<\/span><br \/>\nperf record <span class=\"token parameter variable\">-F<\/span> <span class=\"token number\">99<\/span> <span class=\"token parameter variable\">-a<\/span> <span class=\"token parameter variable\">-g<\/span> &#8212; <span class=\"token function\">sleep<\/span> <span class=\"token number\">30<\/span><br \/>\nperf script <span class=\"token operator\">&gt;<\/span> out.perf<br \/>\n.\/FlameGraph\/stackcollapse-perf.pl out.perf <span class=\"token operator\">|<\/span> .\/FlameGraph\/flamegraph.pl <span class=\"token operator\">&gt;<\/span> cpu.svg<\/p>\n<p>&#x1f525; \u706b\u7130\u56fe\u89e3\u8bfb&#xff1a;\u6a2a\u5411\u5bbd\u5ea6&#061;CPU\u8017\u65f6&#xff0c;\u7eb5\u5411&#061;\u8c03\u7528\u6808\u6df1\u5ea6<\/p>\n<p>3. \u78c1\u76d8I\/O\u74f6\u9888<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u78c1\u76d8\u7b49\u5f85\u961f\u5217<\/span><br \/>\niostat <span class=\"token parameter variable\">-dxm<\/span> <span class=\"token number\">1<\/span><\/p>\n<p><span class=\"token comment\"># \u8f93\u51fa\u793a\u4f8b&#xff1a;<\/span><br \/>\n<span class=\"token comment\"># Device: await  %util<\/span><br \/>\n<span class=\"token comment\"># sda     120.3   98%  # \u4e25\u91cd\u963b\u585e&#xff01;<\/span><br \/>\n<span class=\"token comment\"># sdb     1.2     5%<\/span><\/p>\n<p><span class=\"token comment\"># \u5b9a\u4f4d\u9ad8IO\u8fdb\u7a0b<\/span><br \/>\niotop <span class=\"token parameter variable\">-oP<\/span><\/p>\n<p>4. \u7f51\u7edc\u98ce\u66b4\u68c0\u6d4b<\/p>\n<p><span class=\"token comment\"># \u6293\u53d6\u5f02\u5e38\u6570\u636e\u5305<\/span><br \/>\ntcpdump <span class=\"token parameter variable\">-i<\/span> eth0 <span class=\"token parameter variable\">-w<\/span> panic.pcap<\/p>\n<p><span class=\"token comment\"># \u5206\u6790TOP\u8fde\u63a5<\/span><br \/>\nss <span class=\"token parameter variable\">-s<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token string\">&#039;Total:&#039;<\/span><br \/>\n<span class=\"token comment\"># Total: 32458 (kernel 0)<\/span><br \/>\n<span class=\"token comment\"># TCP:   31245 (estab 28976, closed 2269, orphaned 143)<\/span><\/p>\n<p>\u26a0\ufe0f \u5371\u9669\u4fe1\u53f7&#xff1a;<\/p>\n<ul>\n<li>ESTAB\u8fde\u63a5\u6570 &gt; 25000<\/li>\n<li>Orphaned sockets\u6301\u7eed\u589e\u957f<\/li>\n<\/ul>\n<p>5. \u5185\u6838\u5d29\u6e83\u5206\u6790<\/p>\n<p><span class=\"token comment\"># \u68c0\u67e5\u5185\u6838\u8f6c\u50a8\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">apt<\/span> <span class=\"token function\">install<\/span> crash kdump-tools<br \/>\ncrash \/var\/crash\/2024070303\/dump.2024070303<\/p>\n<p><span class=\"token comment\"># \u5e38\u7528\u547d\u4ee4<\/span><br \/>\ncrash<span class=\"token operator\">&gt;<\/span> log     <span class=\"token comment\"># \u67e5\u770b\u5d29\u6e83\u65e5\u5fd7<\/span><br \/>\ncrash<span class=\"token operator\">&gt;<\/span> bt      <span class=\"token comment\"># \u6253\u5370\u8c03\u7528\u6808<\/span><br \/>\ncrash<span class=\"token operator\">&gt;<\/span> <span class=\"token function\">ps<\/span>      <span class=\"token comment\"># \u67e5\u770b\u5d29\u6e83\u65f6\u8fdb\u7a0b\u72b6\u6001<\/span><\/p>\n<hr \/>\n<h5>\u56db\u3001\u6839\u56e0\u5b9a\u4f4d&#xff1a;\u50f5\u5c38\u8fdb\u7a0b\u5f15\u53d1\u7ea7\u8054\u6545\u969c<\/h5>\n<p>\u8bc1\u636e\u94fe\u8fd8\u539f&#xff1a;<\/p>\n<p>sequenceDiagram<br \/>\n    \u6570\u636e\u5e93\u5ba2\u6237\u7aef-&gt;&gt;Worker\u8fdb\u7a0b: \u521b\u5efa\u5b50\u8fdb\u7a0b\u5904\u7406\u67e5\u8be2<br \/>\n    Worker\u8fdb\u7a0b&#8211;&gt;&gt;\u7236\u8fdb\u7a0b: \u8fd4\u56de\u7ed3\u679c\u540e\u610f\u5916\u7ec8\u6b62<br \/>\n    \u7236\u8fdb\u7a0b-&gt;&gt;\u7cfb\u7edf: \u672a\u56de\u6536\u5b50\u8fdb\u7a0b(\u50f5\u5c38)<br \/>\n    \u5faa\u73af \u6bcf5\u5206\u949f<br \/>\n        \u7cfb\u7edf&#8211;&gt;&gt;\u50f5\u5c38\u8fdb\u7a0b\u8868: \u7d2f\u8ba1&#043;150<br \/>\n    end<br \/>\n    \u7cfb\u7edf-&gt;&gt;\u5185\u6838: \u8fdb\u7a0bPID\u8017\u5c3d<br \/>\n    \u5185\u6838-&gt;&gt;\u670d\u52a1: \u62d2\u7edd\u65b0\u8fdb\u7a0b\u521b\u5efa<br \/>\n    \u670d\u52a1&#8211;&gt;&gt;\u7528\u6237: \u670d\u52a1\u4e0d\u53ef\u7528<\/p>\n<p>\u5173\u952e\u65e5\u5fd7\u4f50\u8bc1&#xff1a;<\/p>\n<p>$ <span class=\"token function\">grep<\/span> <span class=\"token string\">&#039;zombie&#039;<\/span> \/var\/log\/kern.log<br \/>\nJul 03 02:18:01 <span class=\"token function\">host<\/span> kernel: <span class=\"token punctuation\">[<\/span><span class=\"token number\">19876.123<\/span><span class=\"token punctuation\">]<\/span> Out of PIDs: fork failure <span class=\"token keyword\">in<\/span> pid_namespace<br \/>\nJul 03 02:33:45 <span class=\"token function\">host<\/span> kernel: <span class=\"token punctuation\">[<\/span><span class=\"token number\">20789.456<\/span><span class=\"token punctuation\">]<\/span> zombie created by pid <span class=\"token number\">14523<\/span> <span class=\"token punctuation\">(<\/span>python3<span class=\"token punctuation\">)<\/span><\/p>\n<hr \/>\n<h5>\u4e94\u3001\u521b\u65b0\u65b9\u6848&#xff1a;\u81ea\u52a8\u5316\u5b95\u673a\u5206\u6790\u5de5\u5177<\/h5>\n<p>\u529f\u80fd\u8bbe\u8ba1&#xff1a;<\/p>\n<ul>\n<li>\u81ea\u52a8\u6536\u96c6\u7cfb\u7edf\u5feb\u7167<\/li>\n<li>\u751f\u6210\u53ef\u89c6\u5316\u8bca\u65ad\u62a5\u544a<\/li>\n<li>\u5fae\u4fe1\/\u90ae\u4ef6\u5b9e\u65f6\u544a\u8b66<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5b9e\u73b0&#xff1a;autopsy.sh<\/p>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token comment\"># \u670d\u52a1\u5668\u5b95\u673a\u81ea\u52a8\u8bca\u65ad\u5de5\u5177<\/span><br \/>\n<span class=\"token assign-left variable\">REPORT_DIR<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\/var\/autopsy\/<span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token function\">date<\/span> &#043;%Y%m%d_%H%M%S<span class=\"token variable\">)<\/span><\/span>&#034;<\/span><br \/>\n<span class=\"token function\">mkdir<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token variable\">$REPORT_DIR<\/span><\/p>\n<p><span class=\"token comment\"># 1. \u7cfb\u7edf\u57fa\u7840\u4fe1\u606f<\/span><br \/>\n<span class=\"token function\">top<\/span> <span class=\"token parameter variable\">-b<\/span> <span class=\"token parameter variable\">-n1<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/top.txt<br \/>\n<span class=\"token function\">free<\/span> <span class=\"token parameter variable\">-m<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/mem.txt<br \/>\n<span class=\"token function\">df<\/span> <span class=\"token parameter variable\">-h<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/disk.txt<\/p>\n<p><span class=\"token comment\"># 2. \u8fdb\u7a0b\u7ea7\u8bca\u65ad<\/span><br \/>\n<span class=\"token function\">ps<\/span> auxf <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/ps.txt<br \/>\n<span class=\"token function\">lsof<\/span> &#043;D \/ <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/lsof_all.txt <span class=\"token operator\"><span class=\"token file-descriptor important\">2<\/span>&gt;<\/span>\/dev\/null<\/p>\n<p><span class=\"token comment\"># 3. \u7f51\u7edc\u72b6\u6001\u5206\u6790<\/span><br \/>\nss <span class=\"token parameter variable\">-tulnp<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/ss.txt<br \/>\n<span class=\"token function\">netstat<\/span> <span class=\"token parameter variable\">-s<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/netstat.txt<\/p>\n<p><span class=\"token comment\"># 4. \u65e5\u5fd7\u5173\u952e\u9519\u8bef<\/span><br \/>\njournalctl <span class=\"token parameter variable\">-S<\/span> <span class=\"token string\">&#034;-1 hour&#034;<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/journal.log<br \/>\n<span class=\"token function\">dmesg<\/span> <span class=\"token parameter variable\">-T<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/dmesg.log<\/p>\n<p><span class=\"token comment\"># 5. \u751f\u6210HTML\u62a5\u544a<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;&lt;html&gt;&lt;body&gt;&lt;h1&gt;Autopsy Report&lt;\/h1&gt;&#034;<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/report.html<br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;&lt;h2&gt;Top Processes&lt;\/h2&gt;&lt;pre&gt;<span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token function\">cat<\/span> $REPORT_DIR\/top.txt <span class=\"token operator\">|<\/span> <span class=\"token function\">head<\/span> <span class=\"token parameter variable\">-n20<\/span><span class=\"token variable\">)<\/span><\/span>&lt;\/pre&gt;&#034;<\/span> <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/report.html<br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;&lt;h2&gt;Memory Leak Check&lt;\/h2&gt;&lt;pre&gt;<span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token function\">grep<\/span> <span class=\"token parameter variable\">-A5<\/span> <span class=\"token string\">&#039;slabinfo&#039;<\/span> $REPORT_DIR\/mem.txt<span class=\"token variable\">)<\/span><\/span>&lt;\/pre&gt;&#034;<\/span> <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token variable\">$REPORT_DIR<\/span>\/report.html<\/p>\n<p><span class=\"token comment\"># \u5fae\u4fe1\u544a\u8b66&#xff08;\u9700\u5b89\u88c5\u4f01\u4e1a\u5fae\u4fe1\u673a\u5668\u4eba&#xff09;<\/span><br \/>\n<span class=\"token function\">curl<\/span> <span class=\"token parameter variable\">-s<\/span> <span class=\"token parameter variable\">-X<\/span> POST <span class=\"token parameter variable\">-H<\/span> <span class=\"token string\">&#034;Content-Type: application\/json&#034;<\/span> <span class=\"token punctuation\">\\\\<\/span><br \/>\n<span class=\"token parameter variable\">-d<\/span> <span class=\"token string\">&#039;{&#034;msgtype&#034;: &#034;text&#034;, &#034;text&#034;: {&#034;content&#034;: &#034;&#x1f6a8; \u670d\u52a1\u5668\u5b95\u673a&#xff01;\u8bca\u65ad\u62a5\u544a\u8def\u5f84: &#039;<\/span><span class=\"token variable\">$REPORT_DIR<\/span><span class=\"token string\">&#039;&#034;}}&#039;<\/span> <span class=\"token punctuation\">\\\\<\/span><br \/>\nhttps:\/\/qyapi.weixin.qq.com\/cgi-bin\/webhook\/send?key<span class=\"token operator\">&#061;<\/span>YOUR_KEY<\/p>\n<hr \/>\n<h5>\u516d\u3001\u6839\u6cbb\u65b9\u6848&#xff1a;\u6784\u5efa\u6297\u5d29\u6e83\u4f53\u7cfb<\/h5>\n<p>1. \u50f5\u5c38\u8fdb\u7a0b\u9632\u5fa1\u5c42<\/p>\n<p><span class=\"token comment\"># \u5728Python\u5e94\u7528\u4e2d\u6dfb\u52a0\u5b50\u8fdb\u7a0b\u56de\u6536<\/span><br \/>\n<span class=\"token function\">import<\/span> os<br \/>\n<span class=\"token function\">import<\/span> signal<\/p>\n<p>def handler<span class=\"token punctuation\">(<\/span>signum, frame<span class=\"token punctuation\">)<\/span>:<br \/>\n    os.waitpid<span class=\"token punctuation\">(<\/span>-1, os.WNOHANG<span class=\"token punctuation\">)<\/span><\/p>\n<p>signal.signal<span class=\"token punctuation\">(<\/span>signal.SIGCHLD, handler<span class=\"token punctuation\">)<\/span><\/p>\n<p>2. \u8d44\u6e90\u9694\u79bb\u65b9\u6848<\/p>\n<p># \/etc\/systemd\/system\/myapp.service<br \/>\n[Service]<br \/>\nMemoryMax&#061;8G        # \u5185\u5b58\u786c\u9650\u5236<br \/>\nCPUQuota&#061;300%       # \u6700\u591a\u4f7f\u75283\u6838<br \/>\nTasksMax&#061;1000       # \u6700\u5927\u8fdb\u7a0b\u6570<\/p>\n<p>3. \u9ad8\u53ef\u7528\u67b6\u6784\u5347\u7ea7<\/p>\n<p>  #mermaid-svg-NBabQN8uFIqMSUUy {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .error-icon{fill:#552222;}#mermaid-svg-NBabQN8uFIqMSUUy .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-NBabQN8uFIqMSUUy .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-NBabQN8uFIqMSUUy .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-NBabQN8uFIqMSUUy .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-NBabQN8uFIqMSUUy .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-NBabQN8uFIqMSUUy .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-NBabQN8uFIqMSUUy .marker{fill:#333333;stroke:#333333;}#mermaid-svg-NBabQN8uFIqMSUUy .marker.cross{stroke:#333333;}#mermaid-svg-NBabQN8uFIqMSUUy svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-NBabQN8uFIqMSUUy .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .cluster-label text{fill:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .cluster-label span{color:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .label text,#mermaid-svg-NBabQN8uFIqMSUUy span{fill:#333;color:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .node rect,#mermaid-svg-NBabQN8uFIqMSUUy .node circle,#mermaid-svg-NBabQN8uFIqMSUUy .node ellipse,#mermaid-svg-NBabQN8uFIqMSUUy .node polygon,#mermaid-svg-NBabQN8uFIqMSUUy .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-NBabQN8uFIqMSUUy .node .label{text-align:center;}#mermaid-svg-NBabQN8uFIqMSUUy .node.clickable{cursor:pointer;}#mermaid-svg-NBabQN8uFIqMSUUy .arrowheadPath{fill:#333333;}#mermaid-svg-NBabQN8uFIqMSUUy .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-NBabQN8uFIqMSUUy .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-NBabQN8uFIqMSUUy .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-NBabQN8uFIqMSUUy .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-NBabQN8uFIqMSUUy .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-NBabQN8uFIqMSUUy .cluster text{fill:#333;}#mermaid-svg-NBabQN8uFIqMSUUy .cluster span{color:#333;}#mermaid-svg-NBabQN8uFIqMSUUy div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-NBabQN8uFIqMSUUy :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span id=\"L-L-A-B\" class=\"edgeLabel L-LS-A&#039; L-LE-B\"><\/span><\/p>\n<p>         <span id=\"L-L-A-C\" class=\"edgeLabel L-LS-A&#039; L-LE-C\"><\/span><\/p>\n<p>         <span id=\"L-L-A-D\" class=\"edgeLabel L-LS-A&#039; L-LE-D\"><\/span><\/p>\n<p>         <span id=\"L-L-B-E\" class=\"edgeLabel L-LS-B&#039; L-LE-E\">\u5fc3\u8df3\u68c0\u6d4b<\/span><\/p>\n<p>         <span id=\"L-L-C-E\" class=\"edgeLabel L-LS-C&#039; L-LE-E\">\u5fc3\u8df3\u68c0\u6d4b<\/span><\/p>\n<p>         <span id=\"L-L-D-E\" class=\"edgeLabel L-LS-D&#039; L-LE-E\">\u5fc3\u8df3\u68c0\u6d4b<\/span><\/p>\n<p>          \u8d1f\u8f7d\u5747\u8861<\/p>\n<p>          Server A<\/p>\n<p>          Server B<\/p>\n<p>          Server C<\/p>\n<p>          Redis Sentinel<\/p>\n<p>4. \u667a\u80fd\u7194\u65ad\u673a\u5236<\/p>\n<p><span class=\"token comment\"># \u5f53\u7cfb\u7edf\u8d1f\u8f7d&gt;5\u65f6\u81ea\u52a8\u62d2\u7edd\u65b0\u8bf7\u6c42<\/span><br \/>\n<span class=\"token keyword\">import<\/span> psutil<br \/>\n<span class=\"token keyword\">from<\/span> flask <span class=\"token keyword\">import<\/span> Flask<span class=\"token punctuation\">,<\/span> abort<\/p>\n<p>app <span class=\"token operator\">&#061;<\/span> Flask<span class=\"token punctuation\">(<\/span>__name__<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token decorator annotation punctuation\">&#064;app<span class=\"token punctuation\">.<\/span>before_request<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">check_load<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> psutil<span class=\"token punctuation\">.<\/span>getloadavg<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        abort<span class=\"token punctuation\">(<\/span><span class=\"token number\">503<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Server overload, please retry later&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<hr \/>\n<h5>\u4e03\u3001\u9884\u9632\u6027\u76d1\u63a7\u4f53\u7cfb\u642d\u5efa<\/h5>\n<p>Prometheus\u6838\u5fc3\u76d1\u63a7\u9879&#xff1a;<\/p>\n<p><span class=\"token comment\"># prometheus.yml<\/span><br \/>\n<span class=\"token key atrule\">scrape_configs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">job_name<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;node&#039;<\/span><br \/>\n    <span class=\"token key atrule\">static_configs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">targets<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;localhost:9100&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>  <span class=\"token comment\"># \u5173\u952e\u544a\u8b66\u89c4\u5219<\/span><br \/>\n  <span class=\"token key atrule\">alerting_rules<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">alert<\/span><span class=\"token punctuation\">:<\/span> ZombieProcesses<br \/>\n      <span class=\"token key atrule\">expr<\/span><span class=\"token punctuation\">:<\/span> sum(count_over_time(<span class=\"token punctuation\">{<\/span>__name__&#061;~&#034;processes.<span class=\"token important\">*&#034;<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">[<\/span>5m<span class=\"token punctuation\">]<\/span>)) by (state) <span class=\"token punctuation\">&gt;<\/span> 100<br \/>\n      <span class=\"token key atrule\">for<\/span><span class=\"token punctuation\">:<\/span> 10m<br \/>\n    <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">alert<\/span><span class=\"token punctuation\">:<\/span> PIDExhaustion<br \/>\n      <span class=\"token key atrule\">expr<\/span><span class=\"token punctuation\">:<\/span> node_processes_max <span class=\"token punctuation\">&#8211;<\/span> node_processes_count &lt; 100<\/p>\n<p>Grafana\u770b\u677f\u5173\u952e\u9762\u677f&#xff1a;<\/p>\n<li>\u8fdb\u7a0b\u72b6\u6001\u70ed\u529b\u56fe&#xff08;\u8fd0\u884c\/\u50f5\u5c38\/\u7761\u7720&#xff09;<\/li>\n<li>PID\u5206\u914d\u901f\u7387\u66f2\u7ebf<\/li>\n<li>\u7cfb\u7edf\u8c03\u7528\u9519\u8bef\u7387<\/li>\n<li>\u8d44\u6e90\u7b49\u5f85\u961f\u5217\u957f\u5ea6<\/li>\n<hr \/>\n<h5>\u516b\u3001\u603b\u7ed3\u4e0e\u601d\u8003<\/h5>\n<p>\u672c\u6b21\u5b95\u673a\u65f6\u95f4\u7ebf&#xff1a;<\/p>\n<table>\n<tr>\u65f6\u95f4\u8f74\u4e8b\u4ef6\u54cd\u5e94\u52a8\u4f5c<\/tr>\n<tbody>\n<tr>\n<td>03:15<\/td>\n<td>\u76d1\u63a7\u544a\u8b66<\/td>\n<td>\u542f\u52a8\u5e94\u6025\u9884\u6848<\/td>\n<\/tr>\n<tr>\n<td>03:22<\/td>\n<td>IPMI\u5f3a\u5236\u91cd\u542f<\/td>\n<td>\u8fdb\u5165\u6551\u63f4\u6a21\u5f0f<\/td>\n<\/tr>\n<tr>\n<td>03:40<\/td>\n<td>\u5b9a\u4f4d\u50f5\u5c38\u8fdb\u7a0b\u7d2f\u79ef<\/td>\n<td>\u6e05\u7406&#043;\u4e34\u65f6\u9650\u5236\u8fdb\u7a0b\u6570<\/td>\n<\/tr>\n<tr>\n<td>04:15<\/td>\n<td>\u670d\u52a1\u6062\u590d<\/td>\n<td>\u6d41\u91cf\u7070\u5ea6\u5bfc\u5165<\/td>\n<\/tr>\n<tr>\n<td>06:00<\/td>\n<td>\u9632\u5fa1\u4ee3\u7801\u4e0a\u7ebf<\/td>\n<td>\u76d1\u63a7\u4f53\u7cfb\u589e\u5f3a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7ecf\u9a8c\u603b\u7ed3&#xff1a;<\/p>\n<li>\u76d1\u63a7\u76f2\u533a&#xff1a;\u4f20\u7edf\u76d1\u63a7\u672a\u8986\u76d6PID\u8d44\u6e90\u6c60\u6c34\u4f4d<\/li>\n<li>\u6280\u672f\u503a\u4ee3\u4ef7&#xff1a;\u672a\u56de\u6536\u5b50\u8fdb\u7a0b\u7684\u4ee3\u7801\u7f3a\u9677\u5f15\u53d1\u96ea\u5d29<\/li>\n<li>\u6062\u590d\u6548\u7387&#xff1a;IPMI\u548c\u6551\u63f4\u6a21\u5f0f\u8282\u770190%\u6062\u590d\u65f6\u95f4<\/li>\n<p>&#x1f4a1; \u7ec8\u6781\u5efa\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u6708\u8fdb\u884cChaos Engineering\u6545\u969c\u6ce8\u5165\u6d4b\u8bd5<\/li>\n<li>\u6838\u5fc3\u670d\u52a1\u5b9e\u73b0\u65e0\u72b6\u6001\u5316\u8bbe\u8ba1<\/li>\n<li>\u5efa\u7acb\u9ec4\u91d1\u6307\u6807\u544a\u8b66\u4f53\u7cfb&#xff08;\u65f6\u5ef6\u3001\u6d41\u91cf\u3001\u9519\u8bef\u3001\u9971\u548c\u5ea6&#xff09;<\/li>\n<\/ul>\n<p>\u9644\u5f55&#xff1a;<\/p>\n<ul>\n<li>Linux\u8fdb\u7a0b\u7ba1\u7406\u6743\u5a01\u6307\u5357<\/li>\n<li>\u672c\u6587\u5de5\u5177\u96c6&#xff1a;https:\/\/github.com\/yourname\/ubuntu-crisis-kit<\/li>\n<li>\u63a8\u8350\u9605\u8bfb&#xff1a;\u300aSite Reliability 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