HBASE-526 Add documentation src and build to the 0.1 branch
Second part of documentation commit. git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@638612 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack
parent
feb4f2d2b6
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9fa72c0177
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@ -95,6 +95,7 @@ Hbase Change Log
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HBASE-443 Move internal classes out of HStore
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HBASE-515 At least double default timeouts between regionserver and master
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HBASE-529 RegionServer needs to recover if datanode goes down
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HBASE-456 Clearly state which ports need to be opened in order to run HBase
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Branch 0.1
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@ -1 +1 @@
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See http://wiki.apache.org/lucene-hadoop/Hbase
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See the docs directory or http://hbase.org
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@ -285,7 +285,6 @@
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<path refid="classpath" />
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<pathelement path="${java.class.path}"/>
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</classpath>
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<group title="${Name}" packages="org.apache.hadoop.hbase.*"/>
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</javadoc>
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</target>
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@ -108,6 +108,9 @@ document.write("Last Published: " + document.lastModified);
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<div class="menupagetitle">Overview</div>
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</div>
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<div class="menuitem">
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<a href="api/overview-summary.html#overview_description">Getting Started</a>
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</div>
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<div class="menuitem">
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<a href="api/index.html">API Docs</a>
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</div>
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<div class="menuitem">
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@ -152,6 +155,10 @@ document.write("Last Published: " + document.lastModified);
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<ul>
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<li>
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<a href="api/overview-summary.html#overview_description">Getting Started</a>
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</li>
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<li>
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<a href="api/index.html">API Docs</a>
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</li>
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<a href="index.html">Overview</a>
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</div>
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<div class="menuitem">
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<a href="api/overview-summary.html#overview_description">Getting Started</a>
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</div>
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<div class="menuitem">
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<a href="api/index.html">API Docs</a>
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</div>
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<div class="menuitem">
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</li>
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</ul>
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<ul>
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<li>
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<a href="api/overview-summary.html#overview_description">Getting Started</a> ___________________ <em>started</em>
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</li>
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</ul>
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<ul>
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<li>
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<a href="api/index.html">API Docs</a> ___________________ <em>api</em>
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<a href="ext:lists">mailing list</a> or browse the archives.
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</p>
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<ul>
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<li><a href="ext:api/started">Getting Started</a></li>
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<li><a href="ext:api/index">API Docs</a></li>
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<li><a href="ext:wiki">Wiki</a></li>
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<li><a href="ext:faq">FAQ</a></li>
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<docs label="Documentation">
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<overview label="Overview" href="index.html" />
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<started label="Getting Started" href="ext:api/started" />
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<api label="API Docs" href="ext:api/index" />
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<wiki label="Wiki" href="ext:wiki" />
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<faq label="FAQ" href="ext:faq" />
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<cygwin href="http://www.cygwin.com/" />
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<osx href="http://www.apple.com/macosx" />
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<api href="api/">
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<started href="overview-summary.html#overview_description" />
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<apache href="apache/">
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* <i>ts</i>.
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*
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* @param row row key
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* @param ts
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* @return map of values
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* @throws IOException
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*/
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<title>HBase</title>
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</head>
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<body bgcolor="white">
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HBase is the <a href="http://lucene.apache.org/hadoop">Hadoop</a> simple database.
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<a href="http://hbase.org">HBase</a> is the <a href="http://lucene.apache.org/hadoop">Hadoop</a> simple database.
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<h2><a name="requirements">Requirements</a></h2>
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<ul>
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<h2><a name="getting_started" >Getting Started</a></h2>
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<p>
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What follows presumes you are installing hbase for the first time. If upgrading your
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hbase instance, see <a href="#upgrading">Upgrading</a>.
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What follows presumes you are installing HBase for the first time. If upgrading your
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HBase instance, see <a href="#upgrading">Upgrading</a>.
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</p>
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<p>
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Start by defining the following directory variables for your convenience:
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Start by defining the following environment variables for your convenience:
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</p>
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<p>
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<ul>
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<li><code>${HBASE_HOME}</code>: The HBase root.
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<li><code>${HBASE_HOME}</code>: Set HBASE_HOME to the location of the HBase root: e.g. <code>/user/local/hbase</code>.
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</li>
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</ul>
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</p>
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<p>Edit <code>${HBASE_HOME}/conf/hbase-env.sh</code>. In this file you can
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set the heapsize for HBase, etc. At a minimum, set
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<code>JAVA_HOME</code> to the root of your Java installation.
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set the heapsize for HBase, etc. At a minimum, set <code>JAVA_HOME</code> to point at the root of
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your Java installation.
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||||
<p>
|
||||
If you are running a standalone operation, proceed to <a href=#runandconfirm>Running
|
||||
and Confirming Your Installation</a>. If you are running a distributed operation, continue below.
|
||||
If you are running a standalone operation, there should be nothing further to configure; proceed to
|
||||
<a href=#runandconfirm>Running and Confirming Your Installation</a>. If you are running a distributed
|
||||
operation, continue reading.
|
||||
</p>
|
||||
|
||||
<h2><a name="distributed" >Distributed Operation</a></h2>
|
||||
<p>Distributed mode requires an instance of the Hadoop Distributed File System (DFS).
|
||||
See the Hadoop <a href="http://lucene.apache.org/hadoop/api/overview-summary.html#overview_description">
|
||||
requirements and instructions</a> for running a distributed operation. Configuring HBase for a
|
||||
distributed operation requires modification of the following two files:
|
||||
requirements and instructions</a> for how to set up a DFS.</p>
|
||||
<p>Once you have confirmed your DFS setup, configuring HBase requires modification of the following two files:
|
||||
<code>${HBASE_HOME}/conf/hbase-site.xml</code> and <code>${HBASE_HOME}/conf/regionservers</code>.
|
||||
The former needs to be pointed at the running Hadoop DFS instance. The latter file lists
|
||||
all members of the HBase cluster.
|
||||
all the members of the HBase cluster.
|
||||
</p>
|
||||
<p>
|
||||
<code>hbase-site.xml</code> allows the user to override the properties defined in
|
||||
Use <code>hbase-site.xml</code> to override the properties defined in
|
||||
<code>${HBASE_HOME}/conf/hbase-default.xml</code> (<code>hbase-default.xml</code> itself
|
||||
should never be modified). At a minimum the <code>hbase.master</code> and the
|
||||
<code>hbase.rootdir</code> properties should be redefined
|
||||
in <code>hbase-site.xml</code> to define the <code>host:port</code> pair on which to run the
|
||||
HMaster (<a href="http://wiki.apache.org/lucene-hadoop/Hbase/HbaseArchitecture">read about the
|
||||
Hbase master, regionservers, etc</a>) and to point hbase at the Hadoop filesystem to use. For
|
||||
example:
|
||||
in <code>hbase-site.xml</code> to configure the <code>host:port</code> pair on which the
|
||||
HMaster runs (<a href="http://wiki.apache.org/lucene-hadoop/Hbase/HbaseArchitecture">read about the
|
||||
HBase master, regionservers, etc</a>) and to point HBase at the Hadoop filesystem to use. For
|
||||
example, adding the below to your hbase-site.xml says the master is up on port 60000 on the host
|
||||
example.org and that HBase should use the <code>/hbase</code> directory in the HDFS whose namenode
|
||||
is at port 9000, again on example.org:
|
||||
</p>
|
||||
<pre>
|
||||
<configuration>
|
||||
|
||||
<property>
|
||||
<name>hbase.master</name>
|
||||
<value>localhost:60000</value>
|
||||
<value>example.org:60000</value>
|
||||
<description>The host and port that the HBase master runs at.
|
||||
</description>
|
||||
</property>
|
||||
|
||||
<property>
|
||||
<name>hbase.rootdir</name>
|
||||
<value>hdfs://localhost:9000/hbase</value>
|
||||
<value>hdfs://example.org:9000/hbase</value>
|
||||
<description>The directory shared by region servers.
|
||||
</description>
|
||||
</property>
|
||||
|
|
@ -91,18 +94,19 @@ example:
|
|||
</pre>
|
||||
<p>
|
||||
The <code>regionserver</code> file lists all the hosts running HRegionServers, one
|
||||
host per line (This file is synonymous to the slaves file at
|
||||
host per line (This file is HBase synonym of the hadoop slaves file at
|
||||
<code>${HADOOP_HOME}/conf/slaves</code>).
|
||||
</p>
|
||||
|
||||
<h2><a name="runandconfirm">Running and Confirming Your Installation</a></h2>
|
||||
<p>If you are running in standalone, non-distributed mode, hbase by default uses
|
||||
<p>If you are running in standalone, non-distributed mode, HBase by default uses
|
||||
the local filesystem.</p>
|
||||
|
||||
<p>If you are running a distributed cluster you will need to start the Hadoop DFS daemons
|
||||
before starting HBase and stop the daemons after HBase has shut down. Start and
|
||||
stop the Hadoop DFS daemons as per the Hadoop
|
||||
<a href="http://lucene.apache.org/hadoop/api/overview-summary.html">instructions</a>. HBase
|
||||
does not normally use the mapreduce daemons. These do not need to be started.</p>
|
||||
stop the Hadoop DFS daemons by running <code>${HADOOP_HOME}/bin/start-dfs.sh</code>.
|
||||
Ensure it started properly by testing the put and get of files into the Hadoop filesystem.
|
||||
HBase does not normally use the mapreduce daemons. These do not need to be started.</p>
|
||||
|
||||
<p>Start HBase with the following command:
|
||||
</p>
|
||||
|
|
@ -112,11 +116,11 @@ ${HBASE_HOME}/bin/start-hbase.sh
|
|||
<p>
|
||||
Once HBase has started, enter <code>${HBASE_HOME}/bin/hbase shell</code> to obtain a
|
||||
shell against HBase from which you can execute HQL commands (HQL is a severe subset of SQL).
|
||||
In the HBase shell, type
|
||||
<code>help;</code> to see a list of supported HQL commands. Note that all commands in the HBase
|
||||
In the HBase shell, type <code>help;</code> to see a list of supported HQL commands. Note
|
||||
that all commands in the HBase
|
||||
shell must end with <code>;</code>. Test your installation by creating, viewing, and dropping
|
||||
a table, as per the help instructions. Be patient with the <code>create</code> and
|
||||
<code>drop</code> operations as they may each take 10 seconds or more. To stop hbase, exit the
|
||||
<code>drop</code> operations as they may each take 10 seconds or more. To stop HBase, exit the
|
||||
HBase shell and enter:
|
||||
</p>
|
||||
<pre>
|
||||
|
|
@ -130,19 +134,21 @@ before stopping the Hadoop daemons.
|
|||
The default location for logs is <code>${HBASE_HOME}/logs</code>.
|
||||
</p>
|
||||
<p>HBase also puts up a UI listing vital attributes. By default its deployed on the master host
|
||||
at port 60010.</p>
|
||||
at port 60010 (HBase regionservers listen on port 60020 by default and put up an informational
|
||||
http server at 60030).</p>
|
||||
|
||||
<h2><a name="upgrading" >Upgrading</a></h2>
|
||||
<p>After installing the new HBase, before starting your cluster, run the
|
||||
<code>${HBASE_DIR}/bin/hbase migrate</code> migration script. It will make any
|
||||
adjustments to the filesystem data under <code>hbase.rootdir</code> necessary to run
|
||||
the hbase version (It does not change your install unless you explicitly ask it to).
|
||||
<p>After installing a new HBase on top of data written by a previous HBase version, before
|
||||
starting your cluster, run the <code>${HBASE_DIR}/bin/hbase migrate</code> migration script.
|
||||
It will make any adjustments to the filesystem data under <code>hbase.rootdir</code> necessary to run
|
||||
the HBase version. It does not change your install unless you explicitly ask it to.
|
||||
</p>
|
||||
|
||||
<h2><a name="related" >Related Documentation</a></h2>
|
||||
<ul>
|
||||
<li><a href="http://wiki.apache.org/lucene-hadoop/Hbase">HBase Home Page</a>
|
||||
<li><a href="http://wiki.apache.org/lucene-hadoop/Hbase/HbaseArchitecture">HBase Architecture</a>
|
||||
<li><a href="http://hbase.org">HBase Home Page</a>
|
||||
<li><a href="http://wiki.apache.org/hadoop/Hbase">HBase Wiki</a>
|
||||
<li><a href="http://hadoop.apache.org/">Hadoop Home Page</a>
|
||||
</ul>
|
||||
|
||||
</body>
|
||||
|
|
|
|||
Loading…
Reference in New Issue