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HBASE-2335 mapred package docs don't say zookeeper jar is a dependent 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@932004 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2010-04-08 16:56:21 +00:00
parent 193476d4c2
commit 1b04442fbc
2 changed files with 10 additions and 13 deletions
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1
CHANGES.txt
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@ -264,6 +264,7 @@ Release 0.21.0 - Unreleased
HBASE-2398 NPE in HLog.append when calling writer.getLength
(Kannan Muthukkaruppan via Stack)
HBASE-2410 spurious warnings from util.Sleeper
HBASE-2335 mapred package docs don't say zookeeper jar is a dependent
IMPROVEMENTS
HBASE-1760 Cleanup TODOs in HTable

22
core/src/main/java/org/apache/hadoop/hbase/mapred/package-info.java
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@ -37,26 +37,22 @@ You could add <code>hbase-site.xml</code> to $HADOOP_HOME/conf and add
changes across your cluster but the cleanest means of adding hbase configuration
and classes to the cluster <code>CLASSPATH</code> is by uncommenting
<code>HADOOP_CLASSPATH</code> in <code>$HADOOP_HOME/conf/hadoop-env.sh</code>
and adding the path to the hbase jar and <code>$HBASE_CONF_DIR</code> directory.
Then copy the amended configuration around the cluster.
You'll probably need to restart the MapReduce cluster if you want it to notice
the new configuration.
</p>
<p>For example, here is how you would amend <code>hadoop-env.sh</code> adding the
built hbase jar, hbase conf, and the <code>PerformanceEvaluation</code> class from
the built hbase test jar to the hadoop <code>CLASSPATH<code>:
adding hbase dependencies here. For example, here is how you would amend
<code>hadoop-env.sh</code> adding the
built hbase jar, zookeeper (needed by hbase client), hbase conf, and the
<code>PerformanceEvaluation</code> class from the built hbase test jar to the
hadoop <code>CLASSPATH</code>:
<blockquote><pre># Extra Java CLASSPATH elements. Optional.
# export HADOOP_CLASSPATH=
export HADOOP_CLASSPATH=$HBASE_HOME/build/test:$HBASE_HOME/build/hbase-X.X.X.jar:$HBASE_HOME/build/hbase-X.X.X-test.jar:$HBASE_HOME/conf</pre></blockquote>
export HADOOP_CLASSPATH=$HBASE_HOME/build/hbase-X.X.X.jar:$HBASE_HOME/build/hbase-X.X.X-test.jar:$HBASE_HOME/conf:${HBASE_HOME}/lib/zookeeper-X.X.X.jar</pre></blockquote>
<p>Expand <code>$HBASE_HOME</code> in the above appropriately to suit your
local environment.</p>
<p>After copying the above change around your cluster, this is how you would run
the PerformanceEvaluation MR job to put up 4 clients (Presumes a ready mapreduce
cluster):
<p>After copying the above change around your cluster (and restarting), this is
how you would run the PerformanceEvaluation MR job to put up 4 clients (Presumes
a ready mapreduce cluster):
<blockquote><pre>$HADOOP_HOME/bin/hadoop org.apache.hadoop.hbase.PerformanceEvaluation sequentialWrite 4</pre></blockquote>