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xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button><div class="arrow end"></div></div><div class="vp-toc-wrapper"><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#prometheus">Prometheus</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#监控指标的-prometheus-映射关系">监控指标的 Prometheus 映射关系</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#修改配置文件">修改配置文件</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#prometheus-grafana">Prometheus + Grafana</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#apache-iotdb-dashboard">Apache IoTDB Dashboard</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h1 id="监控工具" tabindex="-1"><a class="header-anchor" href="#监控工具"><span>监控工具</span></a></h1><h2 id="prometheus" tabindex="-1"><a class="header-anchor" href="#prometheus"><span>Prometheus</span></a></h2><h3 id="监控指标的-prometheus-映射关系" tabindex="-1"><a class="header-anchor" href="#监控指标的-prometheus-映射关系"><span>监控指标的 Prometheus 映射关系</span></a></h3><blockquote><p>对于 Metric Name 为 name, Tags 为 K1=V1, ..., Kn=Vn 的监控指标有如下映射，其中 value 为具体值</p></blockquote><table><thead><tr><th>监控指标类型</th><th>映射关系</th></tr></thead><tbody><tr><td>Counter</td><td>name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value</td></tr><tr><td>AutoGauge、Gauge</td><td>name{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value</td></tr><tr><td>Histogram</td><td>name_max{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_sum{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_count{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", quantile="0.5"} value <br> name{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", quantile="0.99"} value</td></tr><tr><td>Rate</td><td>name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", rate="m1"} value <br> name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", rate="m5"} value <br> name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", rate="m15"} value <br> name_total{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", rate="mean"} value</td></tr><tr><td>Timer</td><td>name_seconds_max{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_seconds_sum{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_seconds_count{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn"} value <br> name_seconds{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", quantile="0.5"} value value <br> name_seconds{cluster="clusterName", nodeType="nodeType", nodeId="nodeId",k1="V1" , ..., Kn="Vn", quantile="0.99"} value</td></tr></tbody></table><h3 id="修改配置文件" tabindex="-1"><a class="header-anchor" href="#修改配置文件"><span>修改配置文件</span></a></h3><ol><li>以 DataNode 为例，修改 iotdb-datanode.properties 配置文件如下：</li></ol><div class="language-properties line-numbers-mode" data-ext="properties" data-title="properties"><pre class="language-properties"><code><span class="token key attr-name">dn_metric_reporter_list</span><span class="token punctuation">=</span><span class="token value attr-value">PROMETHEUS</span> |
| <span class="token key attr-name">dn_metric_level</span><span class="token punctuation">=</span><span class="token value attr-value">CORE</span> |
| <span class="token key attr-name">dn_metric_prometheus_reporter_port</span><span class="token punctuation">=</span><span class="token value attr-value">9091</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ol start="2"><li><p>启动 IoTDB DataNode</p></li><li><p>打开浏览器或者用<code>curl</code> 访问 <code>http://servier_ip:9091/metrics</code>, 就能得到如下 metric 数据：</p></li></ol><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>... |
| # HELP file_count |
| # TYPE file_count gauge |
| file_count{name="wal",} 0.0 |
| file_count{name="unseq",} 0.0 |
| file_count{name="seq",} 2.0 |
| ... |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="prometheus-grafana" tabindex="-1"><a class="header-anchor" href="#prometheus-grafana"><span>Prometheus + Grafana</span></a></h3><p>如上所示，IoTDB 对外暴露出标准的 Prometheus 格式的监控指标数据，可以使用 Prometheus 采集并存储监控指标，使用 Grafana<br> 可视化监控指标。</p><p>IoTDB、Prometheus、Grafana三者的关系如下图所示:</p><figure><img src="https://alioss.timecho.com/docs/img/UserGuide/System-Tools/Metrics/iotdb_prometheus_grafana.png" alt="iotdb_prometheus_grafana" tabindex="0" loading="lazy"><figcaption>iotdb_prometheus_grafana</figcaption></figure><ol><li>IoTDB在运行过程中持续收集监控指标数据。</li><li>Prometheus以固定的间隔（可配置）从IoTDB的HTTP接口拉取监控指标数据。</li><li>Prometheus将拉取到的监控指标数据存储到自己的TSDB中。</li><li>Grafana以固定的间隔（可配置）从Prometheus查询监控指标数据并绘图展示。</li></ol><p>从交互流程可以看出，我们需要做一些额外的工作来部署和配置Prometheus和Grafana。</p><p>比如，你可以对Prometheus进行如下的配置（部分参数可以自行调整）来从IoTDB获取监控数据</p><div class="language-yaml line-numbers-mode" data-ext="yml" data-title="yml"><pre class="language-yaml"><code><span class="token key atrule">job_name</span><span class="token punctuation">:</span> pull<span class="token punctuation">-</span>metrics |
| <span class="token key atrule">honor_labels</span><span class="token punctuation">:</span> <span class="token boolean important">true</span> |
| <span class="token key atrule">honor_timestamps</span><span class="token punctuation">:</span> <span class="token boolean important">true</span> |
| <span class="token key atrule">scrape_interval</span><span class="token punctuation">:</span> 15s |
| <span class="token key atrule">scrape_timeout</span><span class="token punctuation">:</span> 10s |
| <span class="token key atrule">metrics_path</span><span class="token punctuation">:</span> /metrics |
| <span class="token key atrule">scheme</span><span class="token punctuation">:</span> http |
| <span class="token key atrule">follow_redirects</span><span class="token punctuation">:</span> <span class="token boolean important">true</span> |
| <span class="token key atrule">static_configs</span><span class="token punctuation">:</span> |
| <span class="token punctuation">-</span> <span class="token key atrule">targets</span><span class="token punctuation">:</span> |
| <span class="token punctuation">-</span> localhost<span class="token punctuation">:</span><span class="token number">9091</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>更多细节可以参考下面的文档：</p><p><a href="https://prometheus.io/docs/prometheus/latest/getting_started/" target="_blank" rel="noopener noreferrer">Prometheus安装使用文档<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p><a href="https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config" target="_blank" rel="noopener noreferrer">Prometheus从HTTP接口拉取metrics数据的配置说明<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p><a href="https://grafana.com/docs/grafana/latest/getting-started/getting-started/" target="_blank" rel="noopener noreferrer">Grafana安装使用文档<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p><a href="https://prometheus.io/docs/visualization/grafana/#grafana-support-for-prometheus" target="_blank" rel="noopener noreferrer">Grafana从Prometheus查询数据并绘图的文档<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><h3 id="apache-iotdb-dashboard" tabindex="-1"><a class="header-anchor" href="#apache-iotdb-dashboard"><span>Apache IoTDB Dashboard</span></a></h3><p>我们提供了Apache IoTDB Dashboard，支持统一集中式运维管理，可通过一个监控面板监控多个集群。</p><figure><img src="https://alioss.timecho.com/docs/img/监控 default cluster.png" alt="Apache IoTDB Dashboard" tabindex="0" loading="lazy"><figcaption>Apache IoTDB Dashboard</figcaption></figure><figure><img src="https://alioss.timecho.com/docs/img/监控 cluster2.png" alt="Apache IoTDB Dashboard" tabindex="0" loading="lazy"><figcaption>Apache IoTDB Dashboard</figcaption></figure><p>你可以在企业版中获取到 Dashboard 的 Json文件。</p><h4 id="集群概览" tabindex="-1"><a class="header-anchor" href="#集群概览"><span>集群概览</span></a></h4><p>可以监控包括但不限于：</p><ul><li>集群总CPU核数、总内存空间、总硬盘空间</li><li>集群包含多少个ConfigNode与DataNode</li><li>集群启动时长</li><li>集群写入速度</li><li>集群各节点当前CPU、内存、磁盘使用率</li><li>分节点的信息</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 概览.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h4 id="数据写入" tabindex="-1"><a class="header-anchor" href="#数据写入"><span>数据写入</span></a></h4><p>可以监控包括但不限于：</p><ul><li>写入平均耗时、耗时中位数、99%分位耗时</li><li>WAL文件数量与尺寸</li><li>节点 WAL flush SyncBuffer 耗时</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 写入.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h4 id="数据查询" tabindex="-1"><a class="header-anchor" href="#数据查询"><span>数据查询</span></a></h4><p>可以监控包括但不限于：</p><ul><li>节点查询加载时间序列元数据耗时</li><li>节点查询读取时间序列耗时</li><li>节点查询修改时间序列元数据耗时</li><li>节点查询加载Chunk元数据列表耗时</li><li>节点查询修改Chunk元数据耗时</li><li>节点查询按照Chunk元数据过滤耗时</li><li>节点查询构造Chunk Reader耗时的平均值</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 查询.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h4 id="存储引擎" tabindex="-1"><a class="header-anchor" href="#存储引擎"><span>存储引擎</span></a></h4><p>可以监控包括但不限于：</p><ul><li>分类型的文件数量、大小</li><li>处于各阶段的TsFile数量、大小</li><li>各类任务的数量与耗时</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 存储引擎.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h4 id="系统监控" tabindex="-1"><a class="header-anchor" href="#系统监控"><span>系统监控</span></a></h4><p>可以监控包括但不限于：</p><ul><li>系统内存、交换内存、进程内存</li><li>磁盘空间、文件数、文件尺寸</li><li>JVM GC时间占比、分类型的GC次数、GC数据量、各年代的堆内存占用</li><li>网络传输速率、包发送速率</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 系统 内存与硬盘.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><figure><img src="https://alioss.timecho.com/docs/img/监控 系统jvm.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><figure><img 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