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    gitHub
    <span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB User Guide (V0.12.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB Introduction</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Quick Start</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/UserGuide/V0.12.x/QuickStart/QuickStart.html" aria-current="page" class="active sidebar-link">QuickStart</a></li><li><a href="/UserGuide/V0.12.x/QuickStart/Files.html" class="sidebar-link">Storage Path Setting</a></li><li><a href="/UserGuide/V0.12.x/QuickStart/WayToGetIoTDB.html" class="sidebar-link">Get IoTDB Binary files</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Data Concept</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>CLI</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Administration Management</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB-SQL Language</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>API</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>UDF</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Communication Service Protocol</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>System Tools</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Collaboration of Edge and Cloud</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Ecosystem Integration</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Cluster Setup</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>FAQ</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Appendix</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Comparison with TSDBs</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="quick-start"><a href="#quick-start" class="header-anchor">#</a> Quick Start</h1> <p>This short guide will walk you through the basic process of using IoTDB. For a more-complete guide, please visit our website's <a href="/UserGuide/V0.12.x/IoTDB-Introduction/What-is-IoTDB.html">User Guide</a>.</p> <h2 id="prerequisites"><a href="#prerequisites" class="header-anchor">#</a> Prerequisites</h2> <p>To use IoTDB, you need to have:</p> <ol><li>Java &gt;= 1.8 (Please make sure the environment path has been set)</li> <li>Set the max open files num as 65535 to avoid &quot;too many open files&quot; problem.</li></ol> <h2 id="installation"><a href="#installation" class="header-anchor">#</a> Installation</h2> <p>IoTDB provides you three installation methods, you can refer to the following suggestions, choose one of them:</p> <ul><li>Installation from source code. If you need to modify the code yourself, you can use this method.</li> <li>Installation from binary files. Download the binary files from the official website. This is the recommended method, in which you will get a binary released package which is out-of-the-box.(Coming Soon...)</li> <li>Using Docker：The path to the dockerfile is https://github.com/apache/iotdb/blob/master/docker/src/main</li></ul> <h2 id="download"><a href="#download" class="header-anchor">#</a> Download</h2> <p>You can download the binary file from:
<a href="https://iotdb.apache.org/Download/" target="_blank" rel="noopener noreferrer">Download Page<span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a></p> <h2 id="configurations"><a href="#configurations" class="header-anchor">#</a> Configurations</h2> <p>configuration files are under &quot;conf&quot; folder</p> <ul><li>environment config module (<code>iotdb-env.bat</code>, <code>iotdb-env.sh</code>),</li> <li>system config module (<code>iotdb-engine.properties</code>)</li> <li>log config module (<code>logback.xml</code>).</li></ul> <p>For more, see <a href="/UserGuide/V0.12.x/Appendix/Config-Manual.html">Config</a> in detail.</p> <h2 id="start"><a href="#start" class="header-anchor">#</a> Start</h2> <p>You can go through the following step to test the installation, if there is no error after execution, the installation is completed.</p> <h3 id="start-iotdb"><a href="#start-iotdb" class="header-anchor">#</a> Start IoTDB</h3> <p>Users can start IoTDB by the start-server script under the sbin folder.</p> <div class="language- line-numbers-mode"><pre class="language-text"><code># Unix/OS X
&gt; nohup sbin/start-server.sh &gt;/dev/null 2&gt;&amp;1 &amp;
or
&gt; nohup sbin/start-server.sh -c &lt;conf_path&gt; -rpc_port &lt;rpc_port&gt; &gt;/dev/null 2&gt;&amp;1 &amp;

# Windows
&gt; sbin\start-server.bat -c &lt;conf_path&gt; -rpc_port &lt;rpc_port&gt;
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><ul><li>&quot;-c&quot; and &quot;-rpc_port&quot; are optional.</li> <li>option &quot;-c&quot; specifies the system configuration file directory.</li> <li>option &quot;-rpc_port&quot; specifies the rpc port.</li> <li>if both option specified, the <em>rpc_port</em> will overrides the rpc_port in <em>conf_path</em>.</li></ul> <p>if you want to use JMX to connect IOTDB, you may need to add</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>-Dcom.sun.management.jmxremote.rmi.port=PORT -Djava.rmi.server.hostname=IP 
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>to $IOTDB_JMX_OPTS in iotdb-env.sh. or iotdb-env.bat</p> <h3 id="use-cli"><a href="#use-cli" class="header-anchor">#</a> Use Cli</h3> <p>IoTDB offers different ways to interact with server, here we introduce basic steps of using Cli tool to insert and query data.</p> <p>After installing IoTDB, there is a default user 'root', its default password is also 'root'. Users can use this
default user to login Cli to use IoTDB. The startup script of Cli is the start-cli script in the folder sbin. When executing the script, user should assign
IP, PORT, USER_NAME and PASSWORD. The default parameters are &quot;-h 127.0.0.1 -p 6667 -u root -pw -root&quot;.</p> <p>Here is the command for starting the Cli:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code># Unix/OS X
&gt; sbin/start-cli.sh -h 127.0.0.1 -p 6667 -u root -pw root

# Windows
&gt; sbin\start-cli.bat -h 127.0.0.1 -p 6667 -u root -pw root
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><p>The command line client is interactive so if everything is ready you should see the welcome logo and statements:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code> _____       _________  ______   ______
|_   _|     |  _   _  ||_   _ `.|_   _ \
  | |   .--.|_/ | | \_|  | | `. \ | |_) |
  | | / .'`\ \  | |      | |  | | |  __'.
 _| |_| \__. | _| |_    _| |_.' /_| |__) |
|_____|'.__.' |_____|  |______.'|_______/  version x.x.x


IoTDB&gt; login successfully
IoTDB&gt;
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br></div></div><h3 id="basic-commands-for-iotdb"><a href="#basic-commands-for-iotdb" class="header-anchor">#</a> Basic commands for IoTDB</h3> <p>Now, let us introduce the way of creating timeseries, inserting data and querying data.</p> <p>The data in IoTDB is organized as timeseries, in each timeseries there are some data-time pairs, and every timeseries is owned by a storage group. Before defining a timeseries, we should define a storage group using SET STORAGE GROUP, and here is an example:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SET STORAGE GROUP TO root.ln
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>We can also use SHOW STORAGE GROUP to check created storage group:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SHOW STORAGE GROUP
+-----------------------------------+
|                      Storage Group|
+-----------------------------------+
|                            root.ln|
+-----------------------------------+
storage group number = 1
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>After the storage group is set, we can use CREATE TIMESERIES to create new timeseries. When we create a timeseries, we should define its data type and the encoding scheme. We create two timeseries as follow:</p> <div class="language- line-numbers-mode"><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-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><p>To query the specific timeseries, use SHOW TIMESERIES &lt;Path&gt;. &lt;Path&gt; represents the path of the timeseries. Its default value is null, which means querying all the timeseries in the system(the same as using &quot;SHOW TIMESERIES root&quot;). Here are the examples:</p> <ol><li>Query all timeseries in the system:</li></ol> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SHOW TIMESERIES
+-------------------------------+---------------+--------+--------+
|                     Timeseries|  Storage Group|DataType|Encoding|
+-------------------------------+---------------+--------+--------+
|       root.ln.wf01.wt01.status|        root.ln| BOOLEAN|   PLAIN|
|  root.ln.wf01.wt01.temperature|        root.ln|   FLOAT|     RLE|
+-------------------------------+---------------+--------+--------+
Total timeseries number = 2
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><ol start="2"><li>Query a specific timeseries(root.ln.wf01.wt01.status):</li></ol> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SHOW TIMESERIES root.ln.wf01.wt01.status
+------------------------------+--------------+--------+--------+
|                    Timeseries| Storage Group|DataType|Encoding|
+------------------------------+--------------+--------+--------+
|      root.ln.wf01.wt01.status|       root.ln| BOOLEAN|   PLAIN|
+------------------------------+--------------+--------+--------+
Total timeseries number = 1
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>Insert timeseries data is the basic operation of IoTDB, you can use ‘INSERT’ command to finish this. Before insert you should assign the timestamp and the suffix path name:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; INSERT INTO root.ln.wf01.wt01(timestamp,status) values(100,true);
IoTDB&gt; INSERT INTO root.ln.wf01.wt01(timestamp,status,temperature) values(200,false,20.71)
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><p>The data we’ve just inserted displays like this:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SELECT status FROM root.ln.wf01.wt01
+-----------------------+------------------------+
|                   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-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>We can also query several timeseries data at once like this:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; SELECT * FROM root.ln.wf01.wt01
+-----------------------+--------------------------+-----------------------------+
|                   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-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>The commands to exit the Cli are:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>IoTDB&gt; quit
or
IoTDB&gt; exit
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div><p>For more on what commands are supported by IoTDB SQL, see <a href="/UserGuide/V0.12.x/Appendix/SQL-Reference.html">SQL Reference</a>.</p> <h3 id="stop-iotdb"><a href="#stop-iotdb" class="header-anchor">#</a> Stop IoTDB</h3> <p>The server can be stopped with ctrl-C or the following script:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code># Unix/OS X
&gt; sbin/stop-server.sh

# Windows
&gt; sbin\stop-server.bat
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><h2 id="basic-configuration"><a href="#basic-configuration" class="header-anchor">#</a> Basic configuration</h2> <p>The configuration files is in the <code>conf</code> folder, includes:</p> <ul><li>environment configuration (<code>iotdb-env.bat</code>, <code>iotdb-env.sh</code>),</li> <li>system configuration (<code>iotdb-engine.properties</code>)</li> <li>log configuration (<code>logback.xml</code>).</li></ul></div> <div class="page-nav"><p class="inner"><span class="prev">
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