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<ul>
<li class="crumb">Cassandra</li>
<li class="crumb"><a href="index.html">Getting Started</a></li>
<li class="crumb"><a href="installing.html">Installing Cassandra</a></li>
</ul>
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<li class="tool edit"><a href="https://github.com/apache/cassandra/edit/cassandra-4.1/doc/modules/cassandra/pages/getting_started/installing.adoc" title="Edit Page" target="_blank" rel="noopener">Edit</a></li>
</ul>
</div>
</div>
<article class="doc">
<h1 class="page">Installing Cassandra</h1>
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>These are the instructions for deploying the supported releases of
Apache Cassandra on Linux servers.</p>
</div>
<div class="paragraph">
<p>Cassandra runs on a wide array of Linux distributions including (but not
limited to):</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Ubuntu, most notably LTS releases 16.04 to 18.04</p>
</li>
<li>
<p>CentOS &amp; RedHat Enterprise Linux (RHEL) including 6.6 to 7.7</p>
</li>
<li>
<p>Amazon Linux AMIs including 2016.09 through to Linux 2</p>
</li>
<li>
<p>Debian versions 8 &amp; 9</p>
</li>
<li>
<p>SUSE Enterprise Linux 12</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This is not an exhaustive list of operating system platforms, nor is it
prescriptive. However, users will be well-advised to conduct exhaustive
tests of their own particularly for less-popular distributions of Linux.
Deploying on older versions is not recommended unless you have previous
experience with the older distribution in a production environment.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="prerequisites"><a class="anchor" href="#prerequisites"></a>Prerequisites</h2>
<div class="sectionbody">
<div class="ulist">
<ul>
<li>
<p>Install the latest version of Java 8 or Java 11, either the
<a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">Oracle
Java Standard Edition 8</a> / <a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">Oracle Java Standard Edition 11 (Long Term Support)</a>
or <a href="http://openjdk.java.net/">OpenJDK 8</a> / <a href="http://openjdk.java.net/">OpenJDK 11</a>. To
verify that you have the correct version of java installed, type
<code>java -version</code>.</p>
</li>
<li>
<p><strong>NOTE</strong>: Experimental support for Java 11 was added in Cassandra 4.0
(<a href="https://issues.apache.org/jira/browse/CASSANDRA-9608">CASSANDRA-9608</a>).
Full support is effective Cassandra 4.0.2 version (<a href="https://issues.apache.org/jira/browse/CASSANDRA-16894">CASSANDRA-16894</a>)
For more information, see
<a href="https://github.com/apache/cassandra/blob/trunk/NEWS.txt">NEWS.txt</a>.</p>
</li>
<li>
<p>For using cqlsh, the latest version of
Python 3.6+ or Python 2.7 (support deprecated). To verify
that you have the correct version of Python installed, type
<code>python --version</code>.</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="choosing-an-installation-method"><a class="anchor" href="#choosing-an-installation-method"></a>Choosing an installation method</h2>
<div class="sectionbody">
<div class="paragraph">
<p>There are three methods of installing Cassandra that are common:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Docker image</p>
</li>
<li>
<p>Tarball binary file</p>
</li>
<li>
<p>Package installation (RPM, YUM)</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>If you are a current Docker user, installing a Docker image is simple.
You&#8217;ll need to install Docker Desktop for Mac, Docker Desktop for Windows,
or have <code>docker</code> installed on Linux.
Pull the appropriate image and then start Cassandra with a run command.</p>
</div>
<div class="paragraph">
<p>For most users, installing the binary tarball is also a simple choice.
The tarball unpacks all its contents into a single location with
binaries and configuration files located in their own subdirectories.
The most obvious attribute of the tarball installation is it does not
require <code>root</code> permissions and can be installed on any Linux
distribution.</p>
</div>
<div class="paragraph">
<p>Packaged installations require <code>root</code> permissions, and are most appropriate for
production installs.
Install the RPM build on CentOS and RHEL-based distributions if you want to
install Cassandra using YUM.
Install the Debian build on Ubuntu and other Debian-based
distributions if you want to install Cassandra using APT.
Note that both the YUM and APT methods required <code>root</code> permissions and
will install the binaries and configuration files as the <code>cassandra</code> OS user.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installing-the-docker-image"><a class="anchor" href="#installing-the-docker-image"></a>Installing the docker image</h2>
<div class="sectionbody">
<div class="olist arabic">
<ol class="arabic" start="1">
<li>
<p>Pull the docker image. For the latest image, use:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">docker pull cassandra:latest</code></pre>
</div>
</div>
<div class="paragraph">
<p>This <code>docker pull</code> command will get the latest version of the 'Docker Official'
Apache Cassandra image available from the <a href="https://hub.docker.com/_/cassandra">Dockerhub</a>.</p>
</div>
<div class="olist arabic">
<ol class="arabic" start="2">
<li>
<p>Start Cassandra with a <code>docker run</code> command:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">docker run --name cass_cluster cassandra:latest</code></pre>
</div>
</div>
<div class="paragraph">
<p>The <code>--name</code> option will be the name of the Cassandra cluster created.</p>
</div>
<div class="olist arabic">
<ol class="arabic" start="3">
<li>
<p>Start the CQL shell, <code>cqlsh</code> to interact with the Cassandra node created:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">docker exec -it cass_cluster cqlsh</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installing-the-binary-tarball"><a class="anchor" href="#installing-the-binary-tarball"></a>Installing the binary tarball</h2>
<div class="sectionbody">
<div class="olist arabic">
<ol class="arabic" start="1">
<li>
<p>Verify the version of Java installed. For example:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset1_command"></a>Command</p>
</li>
<li>
<p><a id="tabset1_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset1_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ java -version</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset1_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~16.04.1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="2">
<li>
<p>Download the binary tarball from one of the mirrors on the
<a href="http://cassandra.apache.org/download/">Apache Cassandra Download</a> site.
For example, to download Cassandra 4.0:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ curl -OL http://apache.mirror.digitalpacific.com.au/cassandra/4.0.0/apache-cassandra-4.0.0-bin.tar.gz</code></pre>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
The mirrors only host the latest versions of each major supported
release. To download an earlier version of Cassandra, visit the
<a href="http://archive.apache.org/dist/cassandra/">Apache Archives</a>.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="3">
<li>
<p>OPTIONAL: Verify the integrity of the downloaded tarball using one of
the methods <a href="https://www.apache.org/dyn/closer.cgi#verify">here</a>. For
example, to verify the hash of the downloaded file using GPG:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset2_command"></a>Command</p>
</li>
<li>
<p><a id="tabset2_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset2_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ gpg --print-md SHA256 apache-cassandra-4.0.0-bin.tar.gz</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset2_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">apache-cassandra-4.0.0-bin.tar.gz: 28757DDE 589F7041 0F9A6A95 C39EE7E6
CDE63440 E2B06B91 AE6B2006 14FA364D</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="paragraph">
<p>Compare the signature with the SHA256 file from the Downloads site:</p>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset3_command"></a>Command</p>
</li>
<li>
<p><a id="tabset3_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset3_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ curl -L https://downloads.apache.org/cassandra/4.0.0/apache-cassandra-4.0.0-bin.tar.gz.sha256</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset3_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">28757dde589f70410f9a6a95c39ee7e6cde63440e2b06b91ae6b200614fa364d</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="4">
<li>
<p>Unpack the tarball:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ tar xzvf apache-cassandra-4.0.0-bin.tar.gz</code></pre>
</div>
</div>
<div class="paragraph">
<p>The files will be extracted to the <code>apache-cassandra-4.0.0/</code> directory.
This is the tarball installation location.</p>
</div>
<div class="olist arabic">
<ol class="arabic" start="5">
<li>
<p>Located in the tarball installation location are the directories for
the scripts, binaries, utilities, configuration, data and log files:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">&lt;tarball_installation&gt;/
bin/ <i class="conum" data-value="1"></i><b>(1)</b>
conf/ <i class="conum" data-value="2"></i><b>(2)</b>
data/ <i class="conum" data-value="3"></i><b>(3)</b>
doc/
interface/
javadoc/
lib/
logs/ <i class="conum" data-value="4"></i><b>(4)</b>
pylib/
tools/ <i class="conum" data-value="5"></i><b>(5)</b></code></pre>
</div>
</div>
<div class="colist arabic">
<table>
<tr>
<td><i class="conum" data-value="1"></i><b>1</b></td>
<td>location of the commands to run cassandra, cqlsh, nodetool, and SSTable tools</td>
</tr>
<tr>
<td><i class="conum" data-value="2"></i><b>2</b></td>
<td>location of cassandra.yaml and other configuration files</td>
</tr>
<tr>
<td><i class="conum" data-value="3"></i><b>3</b></td>
<td>location of the commit logs, hints, and SSTables</td>
</tr>
<tr>
<td><i class="conum" data-value="4"></i><b>4</b></td>
<td>location of system and debug logs
&lt;5&gt;location of cassandra-stress tool</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>For information on how to configure your installation, see
<a href="http://cassandra.apache.org/doc/latest/getting_started/configuring.html">Configuring
Cassandra</a>.</p>
</div>
<div class="olist arabic">
<ol class="arabic" start="6">
<li>
<p>Start Cassandra:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ cd apache-cassandra-4.0.0/ &amp;&amp; bin/cassandra</code></pre>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
This will run Cassandra as the authenticated Linux user.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="6">
<li>
<p>Monitor the progress of the startup with:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset4_command"></a>Command</p>
</li>
<li>
<p><a id="tabset4_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset4_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ tail -f logs/system.log</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset4_result">
<div class="paragraph">
<p>Cassandra is ready when you see an entry like this in the <code>system.log</code>:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">INFO [main] 2019-12-17 03:03:37,526 Server.java:156 - Starting listening for CQL clients on localhost/127.0.0.1:9042 (unencrypted)...</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="paragraph">
<p>You can monitor the progress of the startup with:</p>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset5_command"></a>Command</p>
</li>
<li>
<p><a id="tabset5_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset5_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ tail -f logs/system.log</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset5_result">
<div class="paragraph">
<p>Cassandra is ready when you see an entry like this in the <code>system.log</code>:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">INFO [main] 2019-12-17 03:03:37,526 Server.java:156 - Starting listening for CQL clients on localhost/127.0.0.1:9042 (unencrypted)...</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
For information on how to configure your installation, see
<a href="http://cassandra.apache.org/doc/latest/getting_started/configuring.html">Configuring
Cassandra</a>.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="7">
<li>
<p>Check the status of Cassandra:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ bin/nodetool status</code></pre>
</div>
</div>
<div class="paragraph">
<p>The status column in the output should report <code>UN</code> which stands for
"Up/Normal".</p>
</div>
<div class="paragraph">
<p>Alternatively, connect to the database with:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ bin/cqlsh</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installing-the-debian-packages"><a class="anchor" href="#installing-the-debian-packages"></a>Installing the Debian packages</h2>
<div class="sectionbody">
<div class="olist arabic">
<ol class="arabic" start="1">
<li>
<p>Verify the version of Java installed. For example:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset6_command"></a>Command</p>
</li>
<li>
<p><a id="tabset6_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset6_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ java -version</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset6_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~16.04.1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="2">
<li>
<p>Add the Apache repository of Cassandra to the file
<code>cassandra.sources.list</code>.
The latest major version is {41_version} and the corresponding distribution name is <code>41x</code> (with an "x" as the suffix).
For older releases use:</p>
<div class="ulist">
<ul>
<li>
<p><code>41x</code> for C* {41_version} series</p>
</li>
<li>
<p><code>40x</code> for C* 4.0 series</p>
</li>
<li>
<p><code>311x</code> for C* {311_version} series</p>
</li>
<li>
<p><code>30x</code> for C* {30_version} series</p>
</li>
</ul>
</div>
</li>
</ol>
</div>
<div class="paragraph">
<p>For example, to add the repository for version {41_version} (<code>41x</code>):</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ echo "deb [signed-by=/etc/apt/keyrings/apache-cassandra.asc] https://debian.cassandra.apache.org 41x main" | sudo tee -a /etc/apt/sources.list.d/cassandra.sources.list
deb https://debian.cassandra.apache.org 41x main</code></pre>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="3">
<li>
<p>Add the Apache Cassandra repository keys to the list of trusted keys
on the server:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset7_command"></a>Command</p>
</li>
<li>
<p><a id="tabset7_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset7_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ curl -o /etc/apt/keyrings/apache-cassandra.asc https://downloads.apache.org/cassandra/KEYS</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset7_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 266k 100 266k 0 0 320k 0 --:--:-- --:--:-- --:--:-- 320k
OK</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="4">
<li>
<p>Update the package index from sources:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ sudo apt-get update</code></pre>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="5">
<li>
<p>Install Cassandra with APT:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ sudo apt-get install cassandra</code></pre>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
For information on how to configure your installation, see
<a href="http://cassandra.apache.org/doc/latest/getting_started/configuring.html">Configuring
Cassandra</a>.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="6">
<li>
<p>Monitor the progress of the startup with:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset8_command"></a>Command</p>
</li>
<li>
<p><a id="tabset8_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset8_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ tail -f logs/system.log</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset8_result">
<div class="paragraph">
<p>Cassandra is ready when you see an entry like this in the <code>system.log</code>:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">INFO [main] 2019-12-17 03:03:37,526 Server.java:156 - Starting listening for CQL clients on localhost/127.0.0.1:9042 (unencrypted)...</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
For information on how to configure your installation, see
<a href="http://cassandra.apache.org/doc/latest/getting_started/configuring.html">Configuring
Cassandra</a>.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="7">
<li>
<p>Check the status of Cassandra:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ nodetool status</code></pre>
</div>
</div>
<div class="paragraph">
<p>The status column in the output should report <code>UN</code> which stands for
"Up/Normal".</p>
</div>
<div class="paragraph">
<p>Alternatively, connect to the database with:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ cqlsh</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installing-the-rpm-packages"><a class="anchor" href="#installing-the-rpm-packages"></a>Installing the RPM packages</h2>
<div class="sectionbody">
<div class="olist arabic">
<ol class="arabic" start="1">
<li>
<p>Verify the version of Java installed. For example:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset9_command"></a>Command</p>
</li>
<li>
<p><a id="tabset9_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset9_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ java -version</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset9_result">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~16.04.1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="2">
<li>
<p>Add the Apache repository of Cassandra to the file
<code>/etc/yum.repos.d/cassandra.repo</code> (as the <code>root</code> user).
The latest major version is {41_version} and the corresponding distribution name is <code>41x</code> (with an "x" as the suffix).
For older releases use:</p>
<div class="ulist">
<ul>
<li>
<p><code>41x</code> for C* {41_version} series</p>
</li>
<li>
<p><code>40x</code> for C* 4.0 series</p>
</li>
<li>
<p><code>311x</code> for C* {311_version} series</p>
</li>
<li>
<p><code>30x</code> for C* {30_version} series</p>
</li>
</ul>
</div>
</li>
</ol>
</div>
<div class="paragraph">
<p>For example, to add the repository for version {41_version} (<code>41x</code>):</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">[cassandra]
name=Apache Cassandra
baseurl=https://redhat.cassandra.apache.org/41x/
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://downloads.apache.org/cassandra/KEYS</code></pre>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="3">
<li>
<p>Update the package index from sources:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ sudo yum update</code></pre>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="4">
<li>
<p>Install Cassandra with YUM:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ sudo yum install cassandra</code></pre>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
A new Linux user <code>cassandra</code> will get created as part of the
installation. The Cassandra service will also be run as this user.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="5">
<li>
<p>Start the Cassandra service:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ sudo service cassandra start</code></pre>
</div>
</div>
<div class="olist arabic">
<ol class="arabic" start="6">
<li>
<p>Monitor the progress of the startup with:</p>
</li>
</ol>
</div>
<div class="tabset is-loading">
<div class="ulist tabs">
<ul>
<li>
<p><a id="tabset10_command"></a>Command</p>
</li>
<li>
<p><a id="tabset10_result"></a>Result</p>
</li>
</ul>
</div>
<div class="content">
<div class="tab-pane" aria-labelledby="tabset10_command">
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ tail -f logs/system.log</code></pre>
</div>
</div>
</div>
<div class="tab-pane" aria-labelledby="tabset10_result">
<div class="paragraph">
<p>Cassandra is ready when you see an entry like this in the <code>system.log</code>:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-plaintext hljs" data-lang="plaintext">INFO [main] 2019-12-17 03:03:37,526 Server.java:156 - Starting listening for CQL clients on localhost/127.0.0.1:9042 (unencrypted)...</code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
For information on how to configure your installation, see
<a href="http://cassandra.apache.org/doc/latest/getting_started/configuring.html">Configuring
Cassandra</a>.
</td>
</tr>
</table>
</div>
<div class="olist arabic">
<ol class="arabic" start="7">
<li>
<p>Check the status of Cassandra:</p>
</li>
</ol>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ nodetool status</code></pre>
</div>
</div>
<div class="paragraph">
<p>The status column in the output should report <code>UN</code> which stands for
"Up/Normal".</p>
</div>
<div class="paragraph">
<p>Alternatively, connect to the database with:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code class="language-shell hljs" data-lang="shell">$ cqlsh</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="further-installation-info"><a class="anchor" href="#further-installation-info"></a>Further installation info</h2>
<div class="sectionbody">
<div class="paragraph">
<p>For help with installation issues, see the
<a href="http://cassandra.apache.org/doc/latest/troubleshooting/index.html">Troubleshooting</a>
section.</p>
</div>
</div>
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