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Add troubleshooting on hbase dfsclient1 connection to h2, also edit of pseudo-distributed section... needs more work 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1389527 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2012-09-24 19:36:44 +00:00
parent 66146c49d6
commit e343aae374
2 changed files with 26 additions and 17 deletions
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30
src/docbkx/configuration.xml
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@ -417,14 +417,15 @@ to ensure well-formedness of your document after an edit session.
HBase. Do not use this configuration for production nor for
evaluating HBase performance.</para>
<para>First, confirm your local HDFS setup. Below is an example <filename>conf/hdfs-site.xml</filename>. Note
that the replication is set to 1 because this is a pseudo-distributed setup. The properties <varname>dfs.name.dir</varname>
and <varname>dfs.data.dir</varname> are being set explicitly, the latter being where HDFS data will exist on your machine.
</para>
<para>Next, configure HBase for usage. Below is an example <filename>conf/hbase-site.xml</filename>. Note
that the <varname>hbase.rootdir</varname> property points to the local HDFS instance. This is the file into
<para>First, confirm your local HDFS setup. Below is an example <filename>conf/hdfs-site.xml</filename>.
The properties <varname>dfs.name.dir</varname> and <varname>dfs.data.dir</varname> are being set explicitly,
the latter being where HDFS data will exist on your machine.
</para>
<para>Next, configure HBase for usage. Below is an example <filename>conf/hbase-site.xml</filename>.
This is the file into
which you add local customizations and overrides for
<xref linkend="hbase_default_configurations" /> and <xref linkend="hdfs_client_conf" />
<xref linkend="hbase_default_configurations" /> and <xref linkend="hdfs_client_conf" />.
Note that the <varname>hbase.rootdir</varname> property points to the local HDFS instance.
</para>
<para>Now skip to <xref linkend="confirm" /> for how to start and verify your
@ -443,8 +444,7 @@ to ensure well-formedness of your document after an edit session.
<note>
<para>Above we bind to <varname>localhost</varname>. This means
that a remote client cannot connect. Amend accordingly, if you
want to connect from a remote location.</para>
that a remote client cannot connect.</para>
</note>
@ -464,10 +464,6 @@ to ensure well-formedness of your document after an edit session.
&lt;name&gt;dfs.data.dir&lt;/name&gt;
&lt;value&gt;/Users/local/user.name/hdfs-data&lt;/value&gt;
&lt;/property&gt;
&lt;property&gt;
&lt;name&gt;dfs.replication&lt;/name&gt;
&lt;value&gt;1&lt;/value&gt;
&lt;/property&gt;
...
&lt;/configuration&gt;
</programlisting>
@ -480,14 +476,14 @@ to ensure well-formedness of your document after an edit session.
&lt;name&gt;hbase.rootdir&lt;/name&gt;
&lt;value&gt;hdfs://localhost:8020/hbase&lt;/value&gt;
&lt;/property&gt;
&lt;property&gt;
&lt;name&gt;hbase.zookeeper.quorum&lt;/name&gt;
&lt;value&gt;localhost&lt;/value&gt;
&lt;/property&gt;
&lt;property&gt;
&lt;name&gt;hbase.cluster.distributed&lt;/name&gt;
&lt;value&gt;true&lt;/value&gt;
&lt;/property&gt;
&lt;property&gt;
&lt;name&gt;hbase.zookeeper.quorum&lt;/name&gt;
&lt;value&gt;localhost&lt;/value&gt;
&lt;/property&gt;
...
&lt;/configuration&gt;
</programlisting>

13
src/docbkx/troubleshooting.xml
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@ -1059,6 +1059,19 @@ you need to copy under <filename>hbase/lib</filename>, the <filename>commons-con
in your Hadoop's <filename>lib</filename> directory. That should fix the above complaint.
</para>
</section>
<section xml:id="trouble.versions.205">
<title>...cannot communicate with client version...</title>
<para>If you see something like the following in your logs
<computeroutput>...
2012-09-24 10:20:52,168 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting shutdown.
org.apache.hadoop.ipc.RemoteException: Server IPC version 7 cannot communicate with client version 4
...</computeroutput>
...are you trying to talk to an Hadoop 2.0.x from an HBase that has an Hadoop 1.0.x client?
Use the HBase built against Hadoop 2.0 or rebuild your HBase passing the <command>-Dhadoop.profile=2.0</command>
attribute to Maven (See <xref linkend="maven.build.hadoop" /> for more).
</para>
</section>
<section xml:id="trouble.casestudy">