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Posted to commits@phoenix.apache.org by st...@apache.org on 2023/11/06 08:50:20 UTC
svn commit: r1913615 - /phoenix/site/publish/classpath_and_url.html
Author: stoty
Date: Mon Nov 6 08:50:20 2023
New Revision: 1913615
URL: http://svn.apache.org/viewvc?rev=1913615&view=rev
Log:
one more missing file
Added:
phoenix/site/publish/classpath_and_url.html
Added: phoenix/site/publish/classpath_and_url.html
URL: http://svn.apache.org/viewvc/phoenix/site/publish/classpath_and_url.html?rev=1913615&view=auto
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--- phoenix/site/publish/classpath_and_url.html (added)
+++ phoenix/site/publish/classpath_and_url.html Mon Nov 6 08:50:20 2023
@@ -0,0 +1,542 @@
+
+<!DOCTYPE html>
+<!--
+ Generated by Apache Maven Doxia at 2023-11-06
+ Rendered using Reflow Maven Skin 1.1.0 (http://andriusvelykis.github.io/reflow-maven-skin)
+-->
+<html xml:lang="en" lang="en">
+
+ <head>
+ <meta charset="UTF-8" />
+ <title>Using the Phoenix JDBC Driver | Apache Phoenix</title>
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+
+ <div class="main-body">
+ <div class="row">
+ <div class="span12">
+ <div class="body-content">
+<div class="page-header">
+ <h1>Using the Phoenix JDBC Driver</h1>
+</div>
+<p>This page is about using the Phoenix thick client.</p>
+<p>The thin client for Phoenix Query Server is described on its own <a href="server.html">page</a></p>
+<div class="section">
+ <h2 id="The_Phoenix_classpath">The Phoenix classpath</h2>
+ <p>To use phoenix, both the JDBC driver jar, and hbase-site.xml must be added to the application classpath</p>
+ <div class="section">
+ <h3 id="Phoenix_driver_jar">Phoenix driver jar</h3>
+ <p>The Phoenix JDBC client is built on top the HBase client, and has an unusally high number of dependencies. To make this manageable, Phoenix provides a single shaded uberjar that can be added to the classpath.</p>
+ <p>Phoenix uses some private and semi-public HBase APIs, which may change between HBase versions, and provides separate binary distributions for using with different HBase version.</p>
+ <p>Choose the <a href="download.html">binary distribution</a> or maven artifact corresponding to HBase version on the cluster.</p>
+ <p><b>Copy the driver JAR from the binary distribution</b></p>
+ <p>Copy the corresponding <tt>phoenix-client-embedded-hbase-[hbase.profile]-[phoenix.version].jar</tt> to the application classpath</p>
+ <p><b>Add the dependency via maven</b></p>
+ <div class="source">
+ <pre> <dependencies>
+ ...
+ <dependency>
+ <groupId>org.apache.phoenix</groupId>
+ <artifactId>phoenix-client-embedded-hbase-[hbase.profile]</artifactId>
+ <version>[phoenix.version]</version>
+ </dependency>
+ ...
+ </dependencies>
+</pre>
+ </div>
+ </div>
+ <div class="section">
+ <h3 id="HBase__Hadoop_configuration_files">HBase / Hadoop configuration files</h3>
+ <p>As Phoenix is built on top the HBase client, it needs the HBase configuration files for correct operation. For some configurations, it may also need other Hadoop / HDFS config files like core-site.xml.</p>
+ <p>Download the corrext <i>hbase-site.xml</i> (the client one, usually in <i>/etc/hbase/conf</i>) from the cluster, and copy it to a directory on the classpath. It is important to add the <b>directory containing hbase-site.xml</b>, and not the full path of <i>hbase-site.xml</i> to the classpath.</p>
+ <p>Alternatively, pack <i>hbase-site.xml</i> into the root directory of a JAR file, and add that to the classpath.</p>
+ <p>If <i>hbase-site.xml</i> changes on the cluster, make sure to copy the fresh one to the application classpth.</p>
+ <p>For some development clusters that use the default configuration Phoenix MAY work without this, but not having the correct <i>hbase-site.xml</i> on the classpath is almost guaranteed to cause problems.</p>
+ </div>
+</div>
+<div class="section">
+ <h2 id="The_Phoenix_JDBC_URL">The Phoenix JDBC URL</h2>
+ <p>The phoenix URL contains two main parts. The first one describes the connection to the HBase cluster, while the second part can specify extra options to Phoenix.</p>
+ <p><tt>jdbc:<protocol variant>[:<server list>[:<port>[:<zk root node>[:<principal>[:<keytab file>]]]]][;<option>=<value>]*</tt></p>
+ <ul>
+ <li><tt>Protocol variant</tt>: The HBase connection registry to use, see below for details</li>
+ <li> <p><tt>server list</tt>: A comma separated list of hostnames or IPv4 addresses.</p> <p>It is also possible to use specify the port for each host, as defined in <a class="externalLink" href="https://issues.apache.org/jira/browse/HBASE-12706">HBASE-12706 Support multiple port numbers in ZK quorum string</a>. In this case the colon â:â characters must be escaped with a backslash â\â. It may be necessary to repeat the escape character, for example in Java source code.</p></li>
+ <li> <p><tt>port</tt>: An integer number specifying a port. Ports specified in the server list take precedence.</p></li>
+ <li><tt>zk root node</tt>: The root ZNode for the HBase instance. Must be empty for non ZK registries.</li>
+ <li> <p><tt>principal</tt>: The kerberos principal to use for authentication.</p> <p>If only <tt>principal</tt> is specified, then this defines the user name with each distinct user having their own dedicated HBase connection (HConnection). This provides a means of having multiple, different connections each with different configuration properties on the same JVM.</p></li>
+ <li> <p><tt>keytab</tt>: The kerberos keytab to be used for authentication. Must be specified together with the principal.</p></li>
+ <li><tt>option</tt>: A connection option</li>
+ <li><tt>value</tt>: Value for the connection option</li>
+ </ul>
+ <p>Parameters from end of the connection definition can be omitted. Use empty strings for missing parameters in the middle of the URL. For example, the <tt>jdbc:phoenix::::principal:/home/user/keytab</tt> URL can be used to specify the kerberos principal and keytab, while using the default connection specified in hbase-site.xml.</p>
+ <div class="section">
+ <h3 id="Default_connection">Default connection</h3>
+ <p>The underlaying HBase client identifies the HBase cluster based on parameters specified in hbase-site.xml. While Phoenix makes it possible override this, in the majority of cases it is advisable not to do that, and use the cluster connection definition from hbase-site.xml. The only time the connection should be directly specified is when switching between otherwise identically configured HBase instances, like a production and a disaster recovery cluster.</p>
+ <p>To use the defaults from hbase-site.xml, use the <tt>jdbc:phoenix</tt> URL or <tt>jdbc:phoenix;option=value</tt> if additional options are needed.</p>
+ <p>See the HBase documentation on how the connection is specified in <i>hbase-site.xml</i> for each registry.</p>
+ </div>
+ <div class="section">
+ <h3 id="The_jdbc:phoenix:_protocol_variant">The <tt>jdbc:phoenix:</tt> protocol variant</h3>
+ <p>If the default protocol variant is specified, then Phoenix will select the variant based on the value of the <i>hbase.client.registry.impl</i> property.</p>
+ <p>If the <i>hbase.client.registry.impl</i> property is not defined, then it will choose a default based on the version of the HBase client it includes.</p>
+ </div>
+ <div class="section">
+ <h3 id="The_jdbc:phoenixzk:_protocol_variant">The <tt>jdbc:phoenix+zk:</tt> protocol variant</h3>
+ <p>This uses the original Zookeeper based HBase connection registry, which has always been available in HBase. The server list and port specify the ZK quorum. <a class="externalLink" href="https://issues.apache.org/jira/browse/HBASE-12706">HBASE-12706</a> is supported . In this case the colon â:â characters must be escaped with a backslash â'.</p>
+ <p>examples:</p>
+ <ul>
+ <li><tt>jdbc:phoenix+zk:localhost:2181:/hbase:principal:keytab</tt> : fully specified</li>
+ <li><tt>jdbc:phoenix+zk:host1\:2181,host1\:2182,host2\:2183</tt> : heterogenous ports, default zk node</li>
+ <li><tt>jdbc:phoenix+zk</tt> : use the default ZK parameters from hbase-site.xml or the HBase defaults. (using jdbc:phoenix is preferred in most cases)</li>
+ </ul>
+ </div>
+ <div class="section">
+ <h3 id="The_jdbc:phoenixmaster:_protocol_variant">The <tt>jdbc:phoenix+master:</tt> protocol variant</h3>
+ <p>This uses the Master based connection registry added in <a class="externalLink" href="https://issues.apache.org/jira/browse/HBASE-18095">HBASE-18095</a>, and is available from HBase 2.3.0. The <b>zk root node</b> parameter <b>must</b> never be specified.</p>
+ <p>examples:</p>
+ <ul>
+ <li><tt>jbdc:phoenix+master:master1\:16001,master2\:16002::principal:/path/to/keytab</tt> : Fully specified</li>
+ <li><tt>jbdc:phoenix+master:master1,master2</tt> : uses master1 and master2 with the default port</li>
+ </ul>
+ </div>
+ <div class="section">
+ <h3 id="The_jdbc:phoenixrpc:_protocol_variant">The <tt>jdbc:phoenix+rpc:</tt> protocol variant</h3>
+ <p>This uses the Master based connection registry added in <a class="externalLink" href="https://issues.apache.org/jira/browse/HBASE-26150">HBASE-26150</a>, and is available from HBase 2.5.0. This is very similar to the <b>phoenix+master</b> variant, but also allows specifying the Region Servers in the host list. There is no built-in default port for this registry, the port must always be specified together with the host list.</p>
+ <p>examples:</p>
+ <ul>
+ <li><tt>jbdc:phoenix+rpc:server1\:16001,server2\:16002::principal:/path/to/keytab</tt> : Fully specified</li>
+ <li><tt>jbdc:phoenix+rpc</tt> : uses values from hbase-site.xml</li>
+ </ul>
+ </div>
+</div>
+<div class="section">
+ <h2 id="Notes">Notes</h2>
+ <p>Support for <i>master</i> and <i>RPC</i> registries is only available in Phoenix 5.1.4 and later and 5.2.0 and later. Earlier version only support the jdbc:phoenix: protocol variant implementing the the original HBase Zookeeper Connection Registry.</p>
+ <p>Support for the registry variants is only available for the HBase versions that support them. Phoenix will throw an error if a variant that the HBase version doesnât support is speci.</p>
+ <p>Phoenix 5.2 also supports Hight Availability connections. Documentation for that is only available in the <a class="externalLink" href="https://issues.apache.org/jira/browse/PHOENIX-6491">JIRA ticket</a></p>
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