import{_ as r,r as s,o,c,b as e,d as t,a as i,w as d,e as n}from"./app-_RQXaIUv.js";const u={},v=e("h1",{id:"快速上手",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#快速上手"},[e("span",null,"快速上手")])],-1),p=e("h2",{id:"快速上手-1",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#快速上手-1"},[e("span",null,"快速上手")])],-1),m=e("h3",{id:"安装环境",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#安装环境"},[e("span",null,"安装环境")])],-1),b=e("p",null,"安装前需要保证设备上配有 JDK>=1.8 的运行环境，并配置好 JAVA_HOME 环境变量。",-1),g=e("p",null,"设置最大文件打开数为 65535。",-1),h=e("h3",{id:"安装步骤",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#安装步骤"},[e("span",null,"安装步骤")])],-1),x=e("p",null,"IoTDB 支持多种安装途径。用户可以使用三种方式对 IoTDB 进行安装——下载二进制可运行程序、使用源码、使用 docker 镜像。",-1),_=e("li",null,[e("p",null,"使用源码：您可以从代码仓库下载源码并编译，具体编译方法见下方。")],-1),T={href:"https://iotdb.apache.org/Download/",target:"_blank",rel:"noopener noreferrer"},I={href:"https://github.com/apache/iotdb/blob/master/docker/src/main",target:"_blank",rel:"noopener noreferrer"},f=n(`<h3 id="软件目录结构" tabindex="-1"><a class="header-anchor" href="#软件目录结构"><span>软件目录结构</span></a></h3><ul><li>sbin 启动和停止脚本目录</li><li>conf 配置文件目录</li><li>tools 系统工具目录</li><li>lib 依赖包目录</li></ul><h3 id="iotdb-试用" tabindex="-1"><a class="header-anchor" href="#iotdb-试用"><span>IoTDB 试用</span></a></h3><p>用户可以根据以下操作对 IoTDB 进行简单的试用，若以下操作均无误，则说明 IoTDB 安装成功。</p><h4 id="启动-iotdb" tabindex="-1"><a class="header-anchor" href="#启动-iotdb"><span>启动 IoTDB</span></a></h4><p>用户可以使用 sbin 文件夹下的 start-server 脚本启动 IoTDB。</p><p>Linux 系统与 MacOS 系统启动命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; nohup sbin/start-server.sh -f &gt;/dev/null 2&gt;&amp;1 &amp;
or
&gt; nohup sbin/start-server.sh -b
</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>可选参数:</p><ul><li>默认不含任何参数时, iotdb 将在后台启动，并且不在控制台打印日志</li><li>&quot;-v&quot;: 查看iotdb版本</li><li>&quot;-f&quot;: 在控制台前台启动iotdb (v0.14前是默认设置)</li><li>&quot;-b&quot;: 在后台启动iotdb，控制台不打印日志</li><li>&quot;-p &lt;pidfile&gt;&quot;: 将pid保存到指定的文件中</li><li>&quot;-h&quot;: 查看帮助</li><li>&quot;printgc&quot;(必须是最后一个参数): 打印GC日志 (从v0.14起，该参数将被-g取代)</li><li>&quot;-g&quot;: 打印GC日志</li><li>&quot;-c &lt;config folder&gt;&quot;: 设置IOTDB_CONF变量的值，从而修改配置文件所在文件夹</li><li>&quot;-D &lt;a=b&gt;&quot;: 设置Java的系统环境变量或其他参数</li><li>&quot;-H &lt;filePath&gt; 当OOM异常时存储堆快照到&lt;filePath&gt; (仅 Linux/Mac生效, 且要求iotdb内存小于16GB)&quot;</li><li>&quot;-E &lt;\\filePath&gt; save error file of JVM to &lt;filePath&gt; (仅 Linux/Mac生效)&quot;</li><li>&quot;-X &lt;command&gt; 等价于JVM中 -XX:&lt;command&gt;&quot;</li><li></li></ul><p>Windows 系统启动命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; sbin\\start-server.bat 
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统支持 -c, -v, -f, -b 四个参数。</p><h4 id="使用-cli-工具" tabindex="-1"><a class="header-anchor" href="#使用-cli-工具"><span>使用 Cli 工具</span></a></h4><p>IoTDB 为用户提供多种与服务器交互的方式，在此我们介绍使用 Cli 工具进行写入、查询数据的基本步骤。</p><p>初始安装后的 IoTDB 中有一个默认用户：root，默认密码为 root。用户可以使用该用户运行 Cli 工具操作 IoTDB。Cli 工具启动脚本为 sbin 文件夹下的 start-cli 脚本。启动脚本时需要指定运行 ip、port、username 和 password。若脚本未给定对应参数，则默认参数为&quot;-h 127.0.0.1 -p 6667 -u root -pw -root&quot;</p><p>以下启动语句为服务器在本机运行，且用户未更改运行端口号的示例。</p><p>Linux 系统与 MacOS 系统启动命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; sbin/start-cli.sh -h 127.0.0.1 -p 6667 -u root -pw root
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统启动命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; sbin\\start-cli.bat -h 127.0.0.1 -p 6667 -u root -pw root
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>启动后出现如图提示即为启动成功。</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code> _____       _________  ______   ______
|_   _|     |  _   _  ||_   _ \`.|_   _ \\
  | |   .--.|_/ | | \\_|  | | \`. \\ | |_) |
  | | / .&#39;\`\\ \\  | |      | |  | | |  __&#39;.
 _| |_| \\__. | _| |_    _| |_.&#39; /_| |__) |
|_____|&#39;.__.&#39; |_____|  |______.&#39;|_______/  version x.x.x

IoTDB&gt; login successfully
IoTDB&gt;
</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></div><h4 id="iotdb-的基本操作" tabindex="-1"><a class="header-anchor" href="#iotdb-的基本操作"><span>IoTDB 的基本操作</span></a></h4><p>在这里，我们首先介绍一下使用 Cli 工具创建时间序列、插入数据并查看数据的方法。</p><p>数据在 IoTDB 中的组织形式是以时间序列为单位，每一个时间序列中有若干个数据-时间点对，每一个时间序列属于一个存储组。在定义时间序列之前，要首先使用 SET STORAGE GROUP 语句定义存储组。SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SET STORAGE GROUP TO root.ln
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>我们可以使用 SHOW STORAGE GROUP 语句来查看系统当前所有的存储组，SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SHOW STORAGE GROUP
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>执行结果为：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>+-------------+
|storage group|
+-------------+
|      root.ln|
+-------------+
Total line number = 1
</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></div><p>存储组设定后，使用 CREATE TIMESERIES 语句可以创建新的时间序列，创建时间序列时需要定义数据的类型和编码方式。此处我们创建两个时间序列，SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; CREATE TIMESERIES root.ln.wf01.wt01.status WITH DATATYPE=BOOLEAN, ENCODING=PLAIN
IoTDB&gt; CREATE TIMESERIES root.ln.wf01.wt01.temperature WITH DATATYPE=FLOAT, ENCODING=RLE
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>为了查看指定的时间序列，我们可以使用 SHOW TIMESERIES &lt;Path&gt;语句，其中、&lt;Path&gt;表示时间序列对应的路径，默认值为空，表示查看系统中所有的时间序列。下面是两个例子：</p><p>使用 SHOW TIMESERIES 语句查看系统中存在的所有时间序列，SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SHOW TIMESERIES
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>执行结果为：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>+-----------------------------+-----+-------------+--------+--------+-----------+----+----------+
|                   timeseries|alias|storage group|dataType|encoding|compression|tags|attributes|
+-----------------------------+-----+-------------+--------+--------+-----------+----+----------+
|root.ln.wf01.wt01.temperature| null|      root.ln|   FLOAT|     RLE|     SNAPPY|null|      null|
|     root.ln.wf01.wt01.status| null|      root.ln| BOOLEAN|   PLAIN|     SNAPPY|null|      null|
+-----------------------------+-----+-------------+--------+--------+-----------+----+----------+
Total line number = 2
</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><p>查看具体的时间序列 root.ln.wf01.wt01.status 的 SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SHOW TIMESERIES root.ln.wf01.wt01.status
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>执行结果为：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>+------------------------+-----+-------------+--------+--------+-----------+----+----------+
|              timeseries|alias|storage group|dataType|encoding|compression|tags|attributes|
+------------------------+-----+-------------+--------+--------+-----------+----+----------+
|root.ln.wf01.wt01.status| null|      root.ln| BOOLEAN|   PLAIN|     SNAPPY|null|      null|
+------------------------+-----+-------------+--------+--------+-----------+----+----------+
Total line number = 1
</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></div><p>接下来，我们使用 INSERT 语句向 root.ln.wf01.wt01.status 时间序列中插入数据，在插入数据时需要首先指定时间戳和路径后缀名称：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; INSERT INTO root.ln.wf01.wt01(timestamp,status) values(100,true);
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>我们也可以向多个时间序列中同时插入数据，这些时间序列同属于一个时间戳：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; INSERT INTO root.ln.wf01.wt01(timestamp,status,temperature) values(200,false,20.71)
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>最后，我们查询之前插入的数据。使用 SELECT 语句我们可以查询指定的时间序列的数据结果，SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SELECT status FROM root.ln.wf01.wt01
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>查询结果如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>+-----------------------+------------------------+
|                   Time|root.ln.wf01.wt01.status|
+-----------------------+------------------------+
|1970-01-01T08:00:00.100|                    true|
|1970-01-01T08:00:00.200|                   false|
+-----------------------+------------------------+
Total line number = 2
</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><p>我们也可以查询多个时间序列的数据结果，SQL 语句如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; SELECT * FROM root.ln.wf01.wt01
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>查询结果如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>+-----------------------+--------------------------+-----------------------------+
|                   Time|  root.ln.wf01.wt01.status|root.ln.wf01.wt01.temperature|
+-----------------------+--------------------------+-----------------------------+
|1970-01-01T08:00:00.100|                      true|                         null|
|1970-01-01T08:00:00.200|                     false|                        20.71|
+-----------------------+--------------------------+-----------------------------+
Total line number = 2
</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><p>输入 quit 或 exit 可退出 Cli 结束本次会话。</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; quit
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>或</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>IoTDB&gt; exit
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div>`,58),S=n(`<h4 id="停止-iotdb" tabindex="-1"><a class="header-anchor" href="#停止-iotdb"><span>停止 IoTDB</span></a></h4><p>用户可以使用$IOTDB_HOME/sbin 文件夹下的 stop-server 脚本停止 IoTDB。</p><p>Linux 系统与 MacOS 系统停止命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; $sbin/stop-server.sh
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统停止命令如下：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>&gt; $sbin\\stop-server.bat
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="iotdb-的权限管理" tabindex="-1"><a class="header-anchor" href="#iotdb-的权限管理"><span>IoTDB 的权限管理</span></a></h4><p>初始安装后的 IoTDB 中有一个默认用户：root，默认密码为 root。该用户为管理员用户，固定拥有所有权限，无法被赋予、撤销权限，也无法被删除。</p><p>您可以通过以下命令修改其密码：</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>ALTER USER &lt;username&gt; SET PASSWORD &lt;password&gt;;
Example: IoTDB &gt; ALTER USER root SET PASSWORD &#39;newpwd&#39;;
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