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content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">IoTDB Database</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: v1.4.x</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Monitoring Apache IoTDB Database</h1></header><blockquote><p>Monitor the running status of the Apache IoTDB Internet of Things time series database (JVM-related), memory task clusters and other related Metrics.</p></blockquote><h2 class="anchor anchorWithStickyNavbar_LWe7" id="operation-before-monitoring">Operation before monitoring<a class="hash-link" href="#operation-before-monitoring" title="Direct link to heading"></a></h2><p>You need to enable the <code>metrics</code> function in IoTDB, which will provide interface data in the form of prometheus metrics.</p><p>To enable the <code>metrics</code> function, refer to <a href="https://iotdb.apache.org/UserGuide/V0.13.x/Maintenance-Tools/Metric-Tool.html" target="_blank" rel="noopener noreferrer">Official Documentation</a></p><p>The main steps are as follows:</p><ol><li>The metric collection is disabled by default, you need to modify the parameters in <code>conf/iotdb-metric.yml</code> first, then restart the server</li></ol><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><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:#393A34"><span class="token plain"># Whether to start the monitoring module, the default is false</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">enableMetric: true</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Whether to enable operation delay statistics</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">enablePerformanceStat: false</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Data provision method, externally provide metrics data through jmx and prometheus protocol, optional parameters: [JMX, PROMETHEUS, IOTDB], IOTDB is closed by default.</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">metricReporterList:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> - JMX</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> - PROMETHEUS</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># The metric architecture used at the bottom layer, optional parameters: [MICROMETER, DROPWIZARD]</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">monitorType: MICROMETER</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Initialize the level of the metric, optional parameters: [CORE, IMPORTANT, NORMAL, ALL]</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">metricLevel: IMPORTANT</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Predefined metrics set, optional parameters: [JVM, LOGBACK, FILE, PROCESS, SYSTEM]</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">predefinedMetrics:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> - JVM</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> - FILE</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path 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 class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="2"><li><p>Restart IoTDB, open a browser or use curl to access http://servier_ip:9091/metrics, and you can see the metric data.</p></li><li><p>Add the corresponding IoTDB monitoring in HertzBeat.</p></li></ol><h3 class="anchor anchorWithStickyNavbar_LWe7" id="configuration-parameters">Configuration parameters<a class="hash-link" href="#configuration-parameters" title="Direct link to heading"></a></h3><table><thead><tr><th>Parameter name</th><th>Parameter help description</th></tr></thead><tbody><tr><td>Monitoring Host</td><td>The peer IPV4, IPV6 or domain name to be monitored. Note ⚠️Without protocol header (eg: https://, http://).</td></tr><tr><td>Monitoring name</td><td>The name that identifies this monitoring, and the name needs to be unique.</td></tr><tr><td>Port</td><td>The port provided by the IoTDB Metric interface, which is 9091 by default.</td></tr><tr><td>Timeout</td><td>HTTP request query timeout</td></tr><tr><td>Acquisition Interval</td><td>Interval time for monitoring periodic data collection, in seconds, the minimum interval that can be set is 30 seconds</td></tr><tr><td>Whether to detect</td><td>Whether to detect and check the availability of monitoring before adding monitoring, and the operation of adding and modifying will continue after the detection is successful</td></tr><tr><td>Description Remarks</td><td>More remark information to identify and describe this monitoring, users can remark information here</td></tr></tbody></table><h3 class="anchor anchorWithStickyNavbar_LWe7" id="collect-metrics">Collect metrics<a class="hash-link" href="#collect-metrics" title="Direct link to heading"></a></h3><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-cluster_node_status">Metric collection: cluster_node_status<a class="hash-link" href="#metric-collection-cluster_node_status" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>name</td><td>None</td><td>Node name IP</td></tr><tr><td>status</td><td>None</td><td>Node status, 1=online 2=offline</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-jvm_memory_committed_bytes">Metric collection: jvm_memory_committed_bytes<a class="hash-link" href="#metric-collection-jvm_memory_committed_bytes" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>area</td><td>none</td><td>heap memory or nonheap memory</td></tr><tr><td>id</td><td>none</td><td>memory block</td></tr><tr><td>value</td><td>MB</td><td>The memory size currently requested by the JVM</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-jvm_memory_used_bytes">Metric collection: jvm_memory_used_bytes<a class="hash-link" href="#metric-collection-jvm_memory_used_bytes" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>area</td><td>none</td><td>heap memory or nonheap memory</td></tr><tr><td>id</td><td>none</td><td>memory block</td></tr><tr><td>value</td><td>MB</td><td>JVM used memory size</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-jvm_threads_states_threads">Metric collection: jvm_threads_states_threads<a class="hash-link" href="#metric-collection-jvm_threads_states_threads" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>state</td><td>none</td><td>thread state</td></tr><tr><td>count</td><td>None</td><td>The number of threads corresponding to the thread state</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="index-collection-quantity-business-data">Index collection: quantity business data<a class="hash-link" href="#index-collection-quantity-business-data" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>name</td><td>None</td><td>Business name timeSeries/storageGroup/device/deviceUsingTemplate</td></tr><tr><td>type</td><td>none</td><td>type total/normal/template/template</td></tr><tr><td>value</td><td>None</td><td>The current timeSeries/storageGroup/device/The number of devices that have activated the template</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-cache_hit-cache">Metric collection: cache_hit cache<a class="hash-link" href="#metric-collection-cache_hit-cache" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>name</td><td>None</td><td>Cache name chunk/timeSeriesMeta/bloomFilter</td></tr><tr><td>value</td><td>%</td><td>chunk/timeSeriesMeta cache hit rate, bloomFilter interception rate</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-queue-task-queue">Metric collection: queue task queue<a class="hash-link" href="#metric-collection-queue-task-queue" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>name</td><td>None</td><td>Queue name compaction_inner/compaction_cross/flush</td></tr><tr><td>status</td><td>none</td><td>status running/waiting</td></tr><tr><td>value</td><td>None</td><td>Number of tasks at current time</td></tr></tbody></table><h4 class="anchor anchorWithStickyNavbar_LWe7" id="metric-collection-thrift_connections">Metric collection: thrift_connections<a class="hash-link" href="#metric-collection-thrift_connections" title="Direct link to heading"></a></h4><table><thead><tr><th>Metric Name</th><th>Metric Unit</th><th>Metric Help Description</th></tr></thead><tbody><tr><td>name</td><td>None</td><td>name</td></tr><tr><td>connection</td><td>none</td><td>thrift current connection number</td></tr></tbody></table></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/dromara/hertzbeat/edit/master/home/versioned_docs/version-v1.4.x/help/iotdb.md" target="_blank" rel="noreferrer noopener" 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