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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><div class="toc-wrapper"><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#prometheus">Prometheus</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#the-mapping-from-metric-type-to-prometheus-format">The mapping from metric type to prometheus format</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#config-file">Config File</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#prometheus-grafana">Prometheus + Grafana</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#apache-iotdb-dashboard">Apache IoTDB Dashboard</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#cluster-overview">Cluster Overview</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-writing">Data Writing</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-querying">Data Querying</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#storage-engine">Storage Engine</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#system-monitoring">System Monitoring</a></li><!----><!--]--></ul></li><!--]--></ul><div class="toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><!-- |
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| --><h1 id="monitor-tool" tabindex="-1"><a class="header-anchor" href="#monitor-tool" aria-hidden="true">#</a> Monitor Tool</h1><h2 id="prometheus" tabindex="-1"><a class="header-anchor" href="#prometheus" aria-hidden="true">#</a> Prometheus</h2><h3 id="the-mapping-from-metric-type-to-prometheus-format" tabindex="-1"><a class="header-anchor" href="#the-mapping-from-metric-type-to-prometheus-format" aria-hidden="true">#</a> The mapping from metric type to prometheus format</h3><blockquote><p>For metrics whose Metric Name is name and Tags are K1=V1, ..., Kn=Vn, the mapping is as follows, where value is a<br> specific value</p></blockquote><table><thead><tr><th>Metric Type</th><th>Mapping</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 <br> name_seconds{cluster="clusterName", nodeType="nodeType", nodeId="nodeId", k1="V1", ..., Kn="Vn", quantile="0.99"} value</td></tr></tbody></table><h3 id="config-file" tabindex="-1"><a class="header-anchor" href="#config-file" aria-hidden="true">#</a> Config File</h3><ol><li>Taking DataNode as an example, modify the iotdb-datanode.properties configuration file as follows:</li></ol><div class="language-properties line-numbers-mode" data-ext="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><p>Then you can get metrics data as follows</p><ol start="2"><li>Start IoTDB DataNodes</li><li>Open a browser or use <code>curl</code> to visit <code>http://servier_ip:9091/metrics</code>, you can get the following metric<br> data:</li></ol><div class="language-text line-numbers-mode" data-ext="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" aria-hidden="true">#</a> Prometheus + Grafana</h3><p>As shown above, IoTDB exposes monitoring metrics data in the standard Prometheus format to the outside world. Prometheus<br> can be used to collect and store monitoring indicators, and Grafana can be used to visualize monitoring indicators.</p><p>The following picture describes the relationships among IoTDB, Prometheus and Grafana</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>Along with running, IoTDB will collect its metrics continuously.</li><li>Prometheus scrapes metrics from IoTDB at a constant interval (can be configured).</li><li>Prometheus saves these metrics to its inner TSDB.</li><li>Grafana queries metrics from Prometheus at a constant interval (can be configured) and then presents them on the<br> graph.</li></ol><p>So, we need to do some additional works to configure and deploy Prometheus and Grafana.</p><p>For instance, you can config your Prometheus as follows to get metrics data from IoTDB:</p><div class="language-yaml line-numbers-mode" data-ext="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>The following documents may help you have a good journey with Prometheus and Grafana.</p><p><a href="https://prometheus.io/docs/prometheus/latest/getting_started/" target="_blank" rel="noopener noreferrer">Prometheus getting_started<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 scrape metrics<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 getting_started<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 query metrics from Prometheus<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><h2 id="apache-iotdb-dashboard" tabindex="-1"><a class="header-anchor" href="#apache-iotdb-dashboard" aria-hidden="true">#</a> Apache IoTDB Dashboard</h2><p>We introduce the Apache IoTDB Dashboard, designed for unified centralized operations and management. With it, multiple clusters can be monitored through a single panel.</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>You can access the Dashboard's Json file in the enterprise edition.</p><h3 id="cluster-overview" tabindex="-1"><a class="header-anchor" href="#cluster-overview" aria-hidden="true">#</a> Cluster Overview</h3><p>Including but not limited to:</p><ul><li>Total cluster CPU cores, memory space, and hard disk space.</li><li>Number of ConfigNodes and DataNodes in the cluster.</li><li>Cluster uptime duration.</li><li>Cluster write speed.</li><li>Current CPU, memory, and disk usage across all nodes in the cluster.</li><li>Information on individual nodes.</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 概览.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h3 id="data-writing" tabindex="-1"><a class="header-anchor" href="#data-writing" aria-hidden="true">#</a> Data Writing</h3><p>Including but not limited to:</p><ul><li>Average write latency, median latency, and the 99% percentile latency.</li><li>Number and size of WAL files.</li><li>Node WAL flush SyncBuffer latency.</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 写入.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h3 id="data-querying" tabindex="-1"><a class="header-anchor" href="#data-querying" aria-hidden="true">#</a> Data Querying</h3><p>Including but not limited to:</p><ul><li>Node query load times for time series metadata.</li><li>Node read duration for time series.</li><li>Node edit duration for time series metadata.</li><li>Node query load time for Chunk metadata list.</li><li>Node edit duration for Chunk metadata.</li><li>Node filtering duration based on Chunk metadata.</li><li>Average time to construct a Chunk Reader.</li></ul><figure><img src="https://alioss.timecho.com/docs/img/监控 查询.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure><h3 id="storage-engine" tabindex="-1"><a class="header-anchor" href="#storage-engine" aria-hidden="true">#</a> Storage Engine</h3><p>Including but not limited to:</p><ul><li>File count and sizes by type.</li><li>The count and size of TsFiles at various stages.</li><li>Number and duration of various tasks.</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><h3 id="system-monitoring" tabindex="-1"><a class="header-anchor" href="#system-monitoring" aria-hidden="true">#</a> System Monitoring</h3><p>Including but not limited to:</p><ul><li>System memory, swap memory, and process memory.</li><li>Disk space, file count, and file sizes.</li><li>JVM GC time percentage, GC occurrences by type, GC volume, and heap memory usage across generations.</li><li>Network transmission rate, packet sending rate</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 src="https://alioss.timecho.com/docs/img/监控 系统 网络.png" alt="" tabindex="0" loading="lazy"><figcaption></figcaption></figure></div><!--[--><!----><!--]--><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/apache/iotdb-docs/edit/main/src/UserGuide/latest/Tools-System/Monitor-Tool.md" rel="noopener noreferrer" target="_blank" aria-label="Found Error? 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