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<title data-rh="true">etcd 节点故障排除 | Rancher</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://ranchermanager.docs.rancher.com/zh/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes"><meta data-rh="true" name="docusaurus_locale" content="zh"><meta data-rh="true" name="docsearch:language" content="zh"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="etcd 节点故障排除 | Rancher"><meta data-rh="true" name="description" content="本文介绍了对具有 etcd 角色的节点进行故障排除的命令和提示。"><meta data-rh="true" property="og:description" content="本文介绍了对具有 etcd 角色的节点进行故障排除的命令和提示。"><link data-rh="true" rel="icon" href="/zh/img/favicon.png"><link data-rh="true" rel="alternate" href="https://ranchermanager.docs.rancher.com/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes" hreflang="en"><link data-rh="true" rel="alternate" href="https://ranchermanager.docs.rancher.com/zh/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes" hreflang="zh"><link data-rh="true" rel="alternate" href="https://ranchermanager.docs.rancher.com/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://30NEY6C9UY-dsn.algolia.net" crossorigin="anonymous"><link data-rh="true" rel="canonical" href="https://ranchermanager.docs.rancher.com/zh/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes"><link rel="preconnect" href="https://www.googletagmanager.com">
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class="breadcrumbs__link">故障排除</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/zh/troubleshooting/kubernetes-components"><span itemprop="name">Kubernetes 组件</span></a><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">etcd 节点故障排除</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本：Latest</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">本页总览</button></div><div class="theme-doc-markdown markdown"><header><h1>etcd 节点故障排除</h1></header><p>本文介绍了对具有 <code>etcd</code> 角色的节点进行故障排除的命令和提示。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="检查-etcd-容器是否正在运行">检查 etcd 容器是否正在运行<a href="#检查-etcd-容器是否正在运行" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>etcd 容器的状态应该是 <strong>Up</strong>。<strong>Up</strong> 后面显示的时间指的是容器运行的时间。</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker ps -a -f=name=etcd$</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">d26adbd23643 rancher/mirrored-coreos-etcd:v3.5.7 "/usr/local/bin/etcd…" 30 minutes ago Up 30 minutes etcd</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-容器日志记录">etcd 容器日志记录<a href="#etcd-容器日志记录" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>容器的日志记录可能包含问题的信息。</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker logs etcd</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><table><thead><tr><th>日志</th><th>解释</th></tr></thead><tbody><tr><td><code>health check for peer xxx could not connect: dial tcp IP:2380: getsockopt: connection refused</code></td><td>无法连接到端口 2380 上显示的地址。检查 etcd 容器是否在显示地址的主机上运行。</td></tr><tr><td><code>xxx is starting a new election at term x</code></td><td>etcd 集群失去了集群仲裁数量，并正在尝试建立一个新的 leader。运行 etcd 的大多数节点关闭/无法访问时，可能会发生这种情况。</td></tr><tr><td><code>connection error: desc = "transport: Error while dialing dial tcp 0.0.0.0:2379: i/o timeout"; Reconnecting to {0.0.0.0:2379 0 <nil>}</code></td><td>主机防火墙正在阻止网络通信。</td></tr><tr><td><code>rafthttp: request cluster ID mismatch</code></td><td>具有 etcd 实例日志 <code>rafthttp: request cluster ID mismatch</code> 的节点正在尝试加入已经添加另一个对等节点（peer）的集群。你需要从集群中删除该节点，然后再重新添加。</td></tr><tr><td><code>rafthttp: failed to find member</code></td><td>集群状态（<code>/var/lib/etcd</code>）包含加入集群的错误信息。你需要从集群中删除该节点，清理状态目录，然后再重新添加。</td></tr></tbody></table><h2 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-集群和连接检查">etcd 集群和连接检查<a href="#etcd-集群和连接检查" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>运行 etcd 的主机的地址配置决定了 etcd 监听的地址。如果为运行 etcd 的主机配置了内部地址，则需要显式指定 <code>etcdctl</code> 的端点。如果任何命令的响应是 <code>Error: context deadline exceeded</code>，则 etcd 实例不健康（仲裁丢失或实例未正确加入集群）。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查所有节点上的-etcd-成员">检查所有节点上的 etcd 成员<a href="#检查所有节点上的-etcd-成员" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>输出应包含具有 <code>etcd</code> 角色的所有节点，而且所有节点上的输出应该是相同的。</p><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl member list</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查端点状态">检查端点状态<a href="#检查端点状态" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p><code>RAFT TERM</code> 的值应该是相等的，而且 <code>RAFT INDEX</code> 相差不能太大。</p><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec -e ETCDCTL_ENDPOINTS=$(docker exec etcd etcdctl member list | cut -d, -f5 | sed -e 's/ //g' | paste -sd ',') etcd etcdctl endpoint status --write-out table</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| ENDPOINT | ID | VERSION | DB SIZE | IS LEADER | RAFT TERM | RAFT INDEX |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | 333ef673fc4add56 | 3.5.7 | 24 MB | false | 72 | 66887 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | 5feed52d940ce4cf | 3.5.7 | 24 MB | true | 72 | 66887 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | db6b3bdb559a848d | 3.5.7 | 25 MB | false | 72 | 66887 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查端点健康">检查端点健康<a href="#检查端点健康" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec -e ETCDCTL_ENDPOINTS=$(docker exec etcd etcdctl member list | cut -d, -f5 | sed -e 's/ //g' | paste -sd ',') etcd etcdctl endpoint health</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">https://IP:2379 is healthy: successfully committed proposal: took = 2.113189ms</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">https://IP:2379 is healthy: successfully committed proposal: took = 2.649963ms</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">https://IP:2379 is healthy: successfully committed proposal: took = 2.451201ms</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查端口-tcp2379-上的连接">检查端口 TCP/2379 上的连接<a href="#检查端口-tcp2379-上的连接" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">for endpoint in $(docker exec etcd etcdctl member list | cut -d, -f5); do</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> echo "Validating connection to ${endpoint}/health"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> docker run --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro appropriate/curl -s -w "\n" --cacert $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_CACERT" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) --cert $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_CERT" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) --key $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_KEY" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) "${endpoint}/health"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">done</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2379/health</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"health": "true"}</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2379/health</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"health": "true"}</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2379/health</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"health": "true"}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查端口-tcp2380-上的连接">检查端口 TCP/2380 上的连接<a href="#检查端口-tcp2380-上的连接" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">for endpoint in $(docker exec etcd etcdctl member list | cut -d, -f4); do</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> echo "Validating connection to ${endpoint}/version";</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> docker run --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro appropriate/curl --http1.1 -s -w "\n" --cacert $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_CACERT" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) --cert $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_CERT" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) --key $(docker inspect -f '{{range $index, $value := .Config.Env}}{{if eq (index (split $value "=") 0) "ETCDCTL_KEY" }}{{range $i, $part := (split $value "=")}}{{if gt $i 1}}{{print "="}}{{end}}{{if gt $i 0}}{{print $part}}{{end}}{{end}}{{end}}{{end}}' etcd) "${endpoint}/version"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">done</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2380/version</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"etcdserver":"3.5.7","etcdcluster":"3.5.0"}</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2380/version</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"etcdserver":"3.5.7","etcdcluster":"3.5.0"}</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Validating connection to https://IP:2380/version</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{"etcdserver":"3.5.7","etcdcluster":"3.5.0"}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-告警">etcd 告警<a href="#etcd-告警" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>etcd 会触发告警（例如空间不足时）。</p><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm list</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>触发 NOSPACE 告警的输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-空间错误">etcd 空间错误<a href="#etcd-空间错误" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>相关的错误消息是 <code>etcdserver: mvcc: database space exceeded</code> 或 <code>applying raft message exceeded backend quota</code>。告警 <code>NOSPACE</code> 会被触发。</p><p>解决：</p><ul><li><a href="#%E5%8E%8B%E7%BC%A9%E9%94%AE%E7%A9%BA%E9%97%B4">压缩键空间</a></li><li><a href="#%E5%AF%B9%E6%89%80%E6%9C%89-etcd-%E6%88%90%E5%91%98%E8%BF%9B%E8%A1%8C%E7%A2%8E%E7%89%87%E6%95%B4%E7%90%86">对所有 etcd 成员进行碎片整理</a></li><li><a href="#%E6%A3%80%E6%9F%A5%E7%AB%AF%E7%82%B9%E7%8A%B6%E6%80%81">检查端点状态</a></li><li><a href="#%E8%A7%A3%E9%99%A4%E5%91%8A%E8%AD%A6">解除告警</a></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="压缩键空间">压缩键空间<a href="#压缩键空间" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">rev=$(docker exec etcd etcdctl endpoint status --write-out json | egrep -o '"revision":[0-9]*' | egrep -o '[0-9]*')</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl compact "$rev"</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">compacted revision xxx</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="对所有-etcd-成员进行碎片整理">对所有 etcd 成员进行碎片整理<a href="#对所有-etcd-成员进行碎片整理" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec -e ETCDCTL_ENDPOINTS=$(docker exec etcd etcdctl member list | cut -d, -f5 | sed -e 's/ //g' | paste -sd ',') etcd etcdctl defrag</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">Finished defragmenting etcd member[https://IP:2379]</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Finished defragmenting etcd member[https://IP:2379]</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">Finished defragmenting etcd member[https://IP:2379]</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="检查端点状态-1">检查端点状态<a href="#检查端点状态-1" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec -e ETCDCTL_ENDPOINTS=$(docker exec etcd etcdctl member list | cut -d, -f5 | sed -e 's/ //g' | paste -sd ',') etcd etcdctl endpoint status --write-out table</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| ENDPOINT | ID | VERSION | DB SIZE | IS LEADER | RAFT TERM | RAFT INDEX |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | e973e4419737125 | 3.5.7 | 553 kB | false | 32 | 2449410 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | 4a509c997b26c206 | 3.5.7 | 553 kB | false | 32 | 2449410 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| https://IP:2379 | b217e736575e9dd3 | 3.5.7 | 553 kB | true | 32 | 2449410 |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------------+------------------+---------+---------+-----------+-----------+------------+</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="解除告警">解除告警<a href="#解除告警" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>如果压缩和整理碎片后确定数据库大小下降了，则需要解除告警来允许 etcd 再次写入。</p><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm list</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm disarm</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm list</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>输出示例：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm list</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">memberID:x alarm:NOSPACE</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm disarm</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl alarm list</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="配置日志级别">配置日志级别<a href="#配置日志级别" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><div class="theme-admonition theme-admonition-note alert alert--secondary admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>备注</div><div class="admonitionContent_S0QG"><p>你无法再动态更改 etcd v3.5 或更高版本中的日志级别。</p></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-v35-及更高版本">etcd v3.5 及更高版本<a href="#etcd-v35-及更高版本" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>要配置 etcd 的日志级别，请编辑集群 YAML：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">services:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> etcd:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> extra_args:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> log-level: "debug"</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-v34-及更早版本">etcd v3.4 及更早版本<a href="#etcd-v34-及更早版本" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>在早期的 etcd 版本中，你可以使用 API 动态更改日志级别。使用以下命令来配置调试日志：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker run --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro appropriate/curl -s -XPUT -d '{"Level":"DEBUG"}' --cacert $(docker exec etcd printenv ETCDCTL_CACERT) --cert $(docker exec etcd printenv ETCDCTL_CERT) --key $(docker exec etcd printenv ETCDCTL_KEY) $(docker exec etcd printenv ETCDCTL_ENDPOINTS)/config/local/log</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>要将日志级别重置回默认值 (<code>INFO</code>)，你可以使用以下命令。</p><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker run --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro appropriate/curl -s -XPUT -d '{"Level":"INFO"}' --cacert $(docker exec etcd printenv ETCDCTL_CACERT) --cert $(docker exec etcd printenv ETCDCTL_CERT) --key $(docker exec etcd printenv ETCDCTL_KEY) $(docker exec etcd printenv ETCDCTL_ENDPOINTS)/config/local/log</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="etcd-内容">etcd 内容<a href="#etcd-内容" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>如果要查看 etcd 的内容，你可以查看流事件，也可以直接查询 etcd。详情请参阅以下示例。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="查看流事件">查看流事件<a href="#查看流事件" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl watch --prefix /registry</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>如果你只想查看受影响的键（而不是二进制数据），你可以将 <code>| grep -a ^/registry</code> 尾附到该命令来过滤键。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="直接查询-etcd">直接查询 etcd<a href="#直接查询-etcd" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>命令：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl get /registry --prefix=true --keys-only</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>你可以使用以下命令来处理数据，从而获取每个键的计数摘要：</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">docker exec etcd etcdctl get /registry --prefix=true --keys-only | grep -v ^$ | awk -F'/' '{ if ($3 ~ /cattle.io/) {h[$3"/"$4]++} else { h[$3]++ }} END { for(k in h) print h[k], k }' | sort -nr</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="更换不健康的-etcd-节点">更换不健康的 etcd 节点<a href="#更换不健康的-etcd-节点" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h2><p>如果你 etcd 集群中的某个节点变得不健康，在将新的 etcd 节点添加到集群之前，我们建议你修复或删除故障/不健康的节点。</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/rancher/rancher-docs/edit/main/docs/troubleshooting/kubernetes-components/troubleshooting-etcd-nodes.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>编辑此页</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">最后<!-- -->于 <b><time datetime="2024-03-29T14:47:57.000Z">2024年3月29日</time></b> <!-- -->更新</span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/zh/troubleshooting/kubernetes-components"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">Kubernetes 组件</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/zh/troubleshooting/kubernetes-components/troubleshooting-controlplane-nodes"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">Controlplane 节点故障排除</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#检查-etcd-容器是否正在运行" class="table-of-contents__link toc-highlight">检查 etcd 容器是否正在运行</a></li><li><a href="#etcd-容器日志记录" class="table-of-contents__link toc-highlight">etcd 容器日志记录</a></li><li><a href="#etcd-集群和连接检查" class="table-of-contents__link toc-highlight">etcd 集群和连接检查</a><ul><li><a href="#检查所有节点上的-etcd-成员" class="table-of-contents__link toc-highlight">检查所有节点上的 etcd 成员</a></li><li><a href="#检查端点状态" class="table-of-contents__link toc-highlight">检查端点状态</a></li><li><a href="#检查端点健康" class="table-of-contents__link toc-highlight">检查端点健康</a></li><li><a href="#检查端口-tcp2379-上的连接" class="table-of-contents__link toc-highlight">检查端口 TCP/2379 上的连接</a></li><li><a href="#检查端口-tcp2380-上的连接" class="table-of-contents__link toc-highlight">检查端口 TCP/2380 上的连接</a></li></ul></li><li><a href="#etcd-告警" class="table-of-contents__link toc-highlight">etcd 告警</a></li><li><a href="#etcd-空间错误" class="table-of-contents__link toc-highlight">etcd 空间错误</a><ul><li><a href="#压缩键空间" class="table-of-contents__link toc-highlight">压缩键空间</a></li><li><a href="#对所有-etcd-成员进行碎片整理" class="table-of-contents__link toc-highlight">对所有 etcd 成员进行碎片整理</a></li><li><a href="#检查端点状态-1" class="table-of-contents__link toc-highlight">检查端点状态</a></li><li><a href="#解除告警" class="table-of-contents__link toc-highlight">解除告警</a></li></ul></li><li><a href="#配置日志级别" class="table-of-contents__link toc-highlight">配置日志级别</a><ul><li><a href="#etcd-v35-及更高版本" class="table-of-contents__link toc-highlight">etcd v3.5 及更高版本</a></li><li><a href="#etcd-v34-及更早版本" class="table-of-contents__link toc-highlight">etcd v3.4 及更早版本</a></li></ul></li><li><a href="#etcd-内容" class="table-of-contents__link toc-highlight">etcd 内容</a><ul><li><a href="#查看流事件" class="table-of-contents__link toc-highlight">查看流事件</a></li><li><a href="#直接查询-etcd" class="table-of-contents__link toc-highlight">直接查询 etcd</a></li></ul></li><li><a href="#更换不健康的-etcd-节点" class="table-of-contents__link toc-highlight">更换不健康的 etcd 节点</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2024 SUSE Rancher. 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