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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 (V0.9.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>0-Get Started</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/UserGuide/V0.9.x/0-Get Started/1-QuickStart.html" class="active sidebar-link">QuickStart</a></li><li><a href="/UserGuide/V0.9.x/0-Get Started/2-Frequently asked questions.html" class="sidebar-link">Frequently asked questions</a></li><li><a href="/UserGuide/V0.9.x/0-Get Started/3-Publication.html" class="sidebar-link">Research Papers</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>1-Overview</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>2-Concept</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>3-Server</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>4-Client</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>5-Operation Manual</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>6-System Tools</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>7-Ecosystem Integration</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>8-System Design</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/V0.9.x/1-Overview/1-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.(Comming Soon...)</li> <li>Using Docker：The path to the dockerfile is https://github.com/apache/incubator-iotdb/blob/master/docker/Dockerfile</li></ul> <p>Here in the Quick Start, we give a brief introduction to install IoTDB. For further information, please refer to Chapter 3 of the User Guide.</p> <h2 id="download"><a href="#download" class="header-anchor">#</a> Download</h2> <p>You can download the binary file from:
<a href="/Download/">Here</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/V0.9.x/3-Server/1-Download.html">Chapter3: Server</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; sbin/start-server.sh

# Windows
&gt; sbin\start-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><h3 id="use-iotdb"><a href="#use-iotdb" class="header-anchor">#</a> Use IoTDB</h3> <h4 id="use-cli"><a href="#use-cli" class="header-anchor">#</a> Use Cli</h4> <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-client script in the folder sbin. When executing the script, user should assign<br>
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-client.sh -h 127.0.0.1 -p 6667 -u root -pw root

# Windows
&gt; sbin\start-client.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><h4 id="basic-commands-for-iotdb"><a href="#basic-commands-for-iotdb" class="header-anchor">#</a> Basic commands for IoTDB</h4> <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>Inorder to query the specific timeseries, we can use SHOW TIMESERIES.represent the path of the timeseries. Its default value is null, which means quering all the timeseries in the system(the same as using &quot;SHOW TIMESERIES root&quot;). Here are the examples:</p> <ol><li>Querying 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>Querying 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 inserting 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 is:</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/V0.9.x/5-Operation Manual/4-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="only-build-client"><a href="#only-build-client" class="header-anchor">#</a> Only build client</h2> <p>Under the root path of incubator-iotdb:</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>&gt; mvn clean package -pl client -am -DskipTests
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>After build, the IoTDB client will be at the folder &quot;client/target/iotdb-client-{project.version}&quot;.</p></div> <div class="page-nav"><p class="inner"><!----> <span class="next"><a href="/UserGuide/V0.9.x/0-Get Started/2-Frequently asked questions.html">
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