blob: 94d7c1ff9e1d29a93af1f43587ccec0b7cda059f [file] [log] [blame]
import{_ as r,r as o,o as s,c as l,b as a,d as e,a as i,e as n}from"./app-Bx8hKGcu.js";const d={},c=n('<h1 id="grafana-插件" tabindex="-1"><a class="header-anchor" href="#grafana-插件"><span>Grafana 插件</span></a></h1><p>Grafana 是开源的指标量监测和可视化工具,可用于展示时序数据和应用程序运行分析。</p><p>在 IoTDB 项目中,我们开发了 Grafana 插件,该插件通过调用 IoTDB REST 服务来展现 IoTDB 中时序数据 ,提供了众多时序数据的可视化方法。Grafana 插件相较于 IoTDB-Grafana-Connector 连接器执行效率更高、支持的查询种类更多。只要在您部署环境允许的情况下,<em>我们都推荐直接使用 Grafana 插件而不使用 IoTDB-Grafana-Connector 连接器</em>。</p><h2 id="部署-grafana-插件" tabindex="-1"><a class="header-anchor" href="#部署-grafana-插件"><span>部署 Grafana 插件</span></a></h2><h3 id="安装-grafana" tabindex="-1"><a class="header-anchor" href="#安装-grafana"><span>安装 Grafana</span></a></h3>',5),p={href:"https://grafana.com/grafana/download",target:"_blank",rel:"noopener noreferrer"},g=a("li",null,"版本 >= 9.3.0",-1),h=a("h3",{id:"grafana-plugin-获取",tabindex:"-1"},[a("a",{class:"header-anchor",href:"#grafana-plugin-获取"},[a("span",null,"grafana-plugin 获取")])],-1),m=a("h4",{id:"grafana官方下载-apache-iotdb-datasource",tabindex:"-1"},[a("a",{class:"header-anchor",href:"#grafana官方下载-apache-iotdb-datasource"},[a("span",null,"Grafana官方下载 apache-iotdb-datasource")])],-1),u={href:"https://grafana.com/api/plugins/apache-iotdb-datasource/versions/1.0.0/download",target:"_blank",rel:"noopener noreferrer"},f=n('<h3 id="grafana-plugin-插件安装" tabindex="-1"><a class="header-anchor" href="#grafana-plugin-插件安装"><span>grafana-plugin 插件安装</span></a></h3><h3 id="方式一-使用-grafana-cli-工具安装-推荐" tabindex="-1"><a class="header-anchor" href="#方式一-使用-grafana-cli-工具安装-推荐"><span>方式一 使用 grafana-cli 工具安装(推荐)</span></a></h3><ul><li>使用 grafana-cli 工具从命令行安装 apache-iotdb-datasource,命令内容如下:</li></ul><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>grafana-cli plugins <span class="token function">install</span> apache-iotdb-datasource\n</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="方式二-使用grafana-界面安装-推荐" tabindex="-1"><a class="header-anchor" href="#方式二-使用grafana-界面安装-推荐"><span>方式二 使用Grafana 界面安装(推荐)</span></a></h3><p>从本地 Grafana 点击 Configuration -&gt; Plugins -&gt; 搜索 IoTDB 进行插件安装</p><h3 id="方式三-手动安装grafana-plugin-插件-不推荐" tabindex="-1"><a class="header-anchor" href="#方式三-手动安装grafana-plugin-插件-不推荐"><span>方式三 手动安装grafana-plugin 插件(不推荐)</span></a></h3><ul><li><p>拷贝上述生成的前端工程目标文件夹到 Grafana 的插件目录中 <code>${Grafana文件目录}\\data\\plugins\\</code>。如果没有此目录可以手动建或者启动grafana会自动建立,当然也可以修改plugins的位置,具体请查看下面的修改Grafana 的插件目录位置说明。</p></li><li><p>启动Grafana服务,如果 Grafana 服务已启动,则需要停止Grafana服务,然后再启动Grafana。</p></li></ul>',8),x={href:"https://grafana.com/docs/grafana/latest/plugins/installation/",target:"_blank",rel:"noopener noreferrer"},b=n(`<h3 id="启动-grafana" tabindex="-1"><a class="header-anchor" href="#启动-grafana"><span>启动 Grafana</span></a></h3><p>进入 Grafana 的安装目录,使用以下命令启动 Grafana:</p><ul><li>Windows 系统:</li></ul><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>bin<span class="token punctuation">\\</span>grafana-server.exe
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Linux 系统:</li></ul><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">sudo</span> <span class="token function">service</span> grafana-server start
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>MacOS 系统:</li></ul><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>brew services start grafana
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div>`,8),G={href:"https://grafana.com/docs/grafana/latest/installation/",target:"_blank",rel:"noopener noreferrer"},_=n(`<h3 id="配置-iotdb-rest-服务" tabindex="-1"><a class="header-anchor" href="#配置-iotdb-rest-服务"><span>配置 IoTDB REST 服务</span></a></h3><p>进入 <code>{iotdb 目录}/conf</code>,打开 <code>iotdb-common.properties</code> 文件,并作如下修改:</p><div class="language-properties line-numbers-mode" data-ext="properties" data-title="properties"><pre class="language-properties"><code><span class="token comment"># Is the REST service enabled</span>
<span class="token key attr-name">enable_rest_service</span><span class="token punctuation">=</span><span class="token value attr-value">true</span>
<span class="token comment"># the binding port of the REST service</span>
<span class="token key attr-name">rest_service_port</span><span class="token punctuation">=</span><span class="token value attr-value">18080</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></div><p>启动(重启)IoTDB 使配置生效,此时 IoTDB REST 服务处于运行状态。</p><h2 id="使用-grafana-插件" tabindex="-1"><a class="header-anchor" href="#使用-grafana-插件"><span>使用 Grafana 插件</span></a></h2><h3 id="访问-grafana-dashboard" tabindex="-1"><a class="header-anchor" href="#访问-grafana-dashboard"><span>访问 Grafana dashboard</span></a></h3><p>Grafana 以网页的 dashboard 形式为您展示数据,在使用时请您打开浏览器,访问 <code>http://&lt;ip&gt;:&lt;port&gt;</code>。</p><p>注:IP 为您的 Grafana 所在的服务器 IP,Port 为 Grafana 的运行端口(默认 3000)。</p><p>在本地试用时,Grafana dashboard 的默认地址为 <code>http://localhost:3000/</code>。</p><p>默认登录的用户名和密码都是 <code>admin</code>。</p><h3 id="添加-iotdb-数据源" tabindex="-1"><a class="header-anchor" href="#添加-iotdb-数据源"><span>添加 IoTDB 数据源</span></a></h3><p>点击左侧的 <code>设置</code> 图标,选择 <code>Data Source</code> 选项,然后再点击 <code>Add data source</code>。</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/datasource_1.png?raw=true"><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/datasource_2.png?raw=true"><p>选择 <code>Apache IoTDB</code> 数据源,<code>URL</code> 一栏填写 <code>http://&lt;ip&gt;:&lt;port&gt;</code>。</p><p>Ip 为您的 IoTDB 服务器所在的宿主机 IP,port 为 REST 服务的运行端口(默认 18080)。</p><p>输入 IoTDB 服务器的 username 和 password,点击 <code>Save &amp; Test</code>,出现 <code>Data source is working</code> 则提示配置成功。</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_datasource.png?raw=true"><h3 id="创建一个新的-panel" tabindex="-1"><a class="header-anchor" href="#创建一个新的-panel"><span>创建一个新的 Panel</span></a></h3><p>点击左侧的 <code>Dashboards</code> 图标,选择 <code>Manage</code>,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/manage.png?raw=true"><p>点击右上方的 <code>New Dashboard</code> 图标,选择 <code>Add an empty panel</code>,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/add-empty-panel.png?raw=true"><p>Grafana Plugin 支持SQL: Full Customized和SQL: Drop-down List 两种方式,默认是SQL: Full Customized方式。</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/grafana_input_style.png?raw=true"><h4 id="sql-full-customized-输入方式" tabindex="-1"><a class="header-anchor" href="#sql-full-customized-输入方式"><span>SQL: Full Customized 输入方式</span></a></h4><p>在 SELECT 输入框、FROM 输入框、WHERE输入框、CONTROL输入框中输入内容,其中 WHERE 和 CONTROL 输入框为非必填。</p><p>如果一个查询涉及多个表达式,我们可以点击 SELECT 输入框右侧的 <code>+</code> 来添加 SELECT 子句中的表达式,也可以点击 FROM 输入框右侧的 <code>+</code> 来添加路径前缀,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/grafana_input.png?raw=true"><p>SELECT 输入框中的内容可以是时间序列的后缀,可以是函数或自定义函数,可以是算数表达式,也可以是它们的嵌套表达式。您还可以使用 as 子句来重命名需要显示的结果序列名字。</p><p>下面是 SELECT 输入框中一些合法的输入举例:</p><ul><li><code>s1</code></li><li><code>top_k(s1, &#39;k&#39;=&#39;1&#39;) as top</code></li><li><code>sin(s1) + cos(s1 + s2)</code></li><li><code>udf(s1) as &quot;中文别名&quot;</code></li></ul><p>FROM 输入框中的内容必须是时间序列的前缀路径,比如 <code>root.sg.d</code>。</p><p>WHERE 输入框为非必须填写项目,填写内容应当是查询的过滤条件,比如 <code>time &gt; 0</code> 或者 <code>s1 &lt; 1024 and s2 &gt; 1024</code>。</p><p>CONTROL 输入框为非必须填写项目,填写内容应当是控制查询类型、输出格式的特殊子句。其中GROUP BY 输入框支持使用grafana的全局变量来获取当前时间区间变化<code>$__from</code>(起始时间)、<code>$__to</code>(结束时间),下面是 CONTROL 输入框中一些合法的输入举例:</p><ul><li><code>GROUP BY ([$__from, $__to), 1d)</code></li><li><code>GROUP BY ([$__from, $__to),3h,1d)</code></li><li><code>GROUP BY ([2017-11-01T00:00:00, 2017-11-07T23:00:00), 1d)</code></li><li><code>GROUP BY ([2017-11-01 00:00:00, 2017-11-07 23:00:00), 3h, 1d)</code></li><li><code>GROUP BY ([$__from, $__to), 1m) FILL (PREVIOUSUNTILLAST)</code></li><li><code>GROUP BY ([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (PREVIOUSUNTILLAST)</code></li><li><code>GROUP BY ([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (PREVIOUS, 1m)</code></li><li><code>GROUP BY ([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (LINEAR, 5m, 5m)</code></li><li><code>GROUP BY ((2017-11-01T00:00:00, 2017-11-07T23:00:00], 1d), LEVEL=1</code></li><li><code>GROUP BY ([0, 20), 2ms, 3ms), LEVEL=1</code></li></ul><p>提示:为了避免OOM问题,不推荐使用select * from root.xx.** 这种语句在Grafana plugin中使用。</p><h4 id="sql-drop-down-list-输入方式" tabindex="-1"><a class="header-anchor" href="#sql-drop-down-list-输入方式"><span>SQL: Drop-down List 输入方式</span></a></h4><p>在 TIME-SERIES 选择框中选择一条时间序列、FUNCTION 选择一个函数、SAMPLING INTERVAL、SLIDING STEP、LEVEL、FILL 输入框中输入内容,其中 TIME-SERIESL 为必填项其余为非必填项。</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/grafana_input2.png?raw=true"><h3 id="变量与模板功能的支持" tabindex="-1"><a class="header-anchor" href="#变量与模板功能的支持"><span>变量与模板功能的支持</span></a></h3><p>SQL: Full Customized和SQL: Drop-down List两种输入方式都支持 Grafana 的变量与模板功能,下面示例中使用SQL: Full Customized输入方式,SQL: Drop-down List与之类似。</p><p>创建一个新的 Panel 后,点击右上角的设置按钮,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/setconf.png?raw=true"><p>选择 <code>Variables</code>,点击 <code>Add variable</code> ,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/addvaribles.png?raw=true"><p>示例一:输入 <code>Name</code>,<code>Label</code>,选择Type的<code>Query</code>、在Query 中输入show child paths xx , 点击 <code>Update</code> 按钮,如下图所示:</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variblesinput.png?raw=true"><p>应用 Variables,在 <code>grafana panel</code> 中输入变量点击 <code>save</code> 按钮,如下图所示</p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/applyvariables.png?raw=true"><p>示例二:变量嵌套使用,如下图所示<br><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variblesinput2.png?raw=true"></p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variblesinput2-1.png?raw=true"><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variblesinput2-2.png?raw=true"><p>示例三:函数变量使用,如下图所示<br><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variablesinput3.png?raw=true"></p><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/UserGuide/Ecosystem-Integration/Grafana-plugin/variablesinput3-1.png?raw=true">`,55),w=a("br",null,null,-1),y=a("br",null,null,-1),v={href:"https://grafana.com/docs/grafana/latest/variables/",target:"_blank",rel:"noopener noreferrer"},T=n('<p>除了上面的示例外,还支持下面这些语句:</p><ul><li><p><code>show databases</code></p></li><li><p><code>show timeseries</code></p></li><li><p><code>show child nodes</code></p></li><li><p><code>show all ttl</code></p></li><li><p><code>show latest timeseries</code></p></li><li><p><code>show devices</code></p></li><li><p><code>select xx from root.xxx limit xx 等sql 查询</code></p></li><li><p>提示:如果查询的字段中有布尔类型的数据,会将true转化成1,false转化成0结果值进行显示。</p></li></ul><h3 id="告警功能" tabindex="-1"><a class="header-anchor" href="#告警功能"><span>告警功能</span></a></h3><p>本插件支持 Grafana alert功能。在Grafana 9告警界面一共有6个Tab,分别是Alert rules、Contact points、Notification policies、Silences、Alert groups、Admin</p><ul><li><code>Alert rules</code> 告警规则列表,用于展示和配置告警规则</li><li><code>Contact points</code> 为通知渠道,包括DingDing、Email、Slack、WebHook、Prometheus Alertmanager等</li><li><code>Notification policies</code> 配置告警发送到哪个通道的路由,以及发送通知的时间和重复频率,静默配置</li><li><code>Silences</code> 为配置告警静默时间段</li><li><code>Alert groups</code> 告警组,配置的告警触发后会在这里显示</li><li><code>Admin</code> 提供通过JSON方式修改告警配置</li></ul><ol><li>在Grafana panel中,点击alerting按钮,如下图所示:</li></ol><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert1.png?raw=true"><ol start="2"><li>点击<code>Create alert rule from this panel</code>,如下图所示:</li></ol><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert2.png?raw=true"><ol start="3"><li>在第1步中设置查询和警报条件,Conditions 表示查询条件,可以配置多个组合查询条件。如下图所示:</li></ol><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert3.png?raw=true"><p>图中的查询条件:min() OF A IS BELOW 0,表示将A选项卡中的最小值在0一下就会触发条件,单击该函数可将其更改为另一个函数。</p><p>提示:警报规则中使用的查询不能包含任何模板变量。目前我们只支持条件之间的AND和OR运算符,它们是串行执行的。<br> 例如,我们按以下顺序有 3 个条件: 条件:B(计算为:TRUE)或条件:C(计算为:FALSE)和条件:D(计算为:TRUE) 所以结果将计算为((对或错)和对)=对。</p><ol start="4"><li><p>选择完指标及告警规则后点击<code>Preview</code>按钮,进行数据预览如下图所示:<br><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert4.png?raw=true"></p></li><li><p>在第 2 步中,指定警报评估间隔,对于<code>Evaluate every</code>,指定评估频率。必须是 10 秒的倍数。例如,1m,30s。<br> 对于<code>Evaluate for</code>,指定在警报触发之前的持续时间。如下图所示:<br><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert5.png?raw=true"></p></li><li><p>在第 3 步中,添加存储位置、规则组以及与规则关联的其他元数据。 其中<code>Rule name</code>指定规则的名称。规则名称必须是唯一的。<br><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/grafana9_alert6.png?raw=true"></p></li><li><p>在第 4 步中,添加自定义标签。 从下拉列表中选择现有键值对添加自定义标签,或通过输入新键或值来添加新标签。如下图所示:</p></li></ol><img style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" 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