Setting HADOOP CLASSPATH for MesosScheduler from CM

On Wed, Sep 19, 2012 at 9:01 PM, Gaurav Dasgupta wrote:

HI

I have my CDH3u4 cluster setup by CLoudera Manager.
I want to set Hadoop Classpath in order to read some Mesos classes. How
can I set it from CM. I tried to edit *hadoop-env.sh* in *
$HADOOP_HOME/conf* directly and added the following line:

export
HADOOP_CLASSPATH=/usr/lib/hadoop-0.20/build/contrib/mesos/classes/:$HADOOP_CLASSPATH

But getting the following JobTracker error in CM while restarting the
cluster:

java.lang.ClassNotFoundException: org.apache.hadoop.mapred.MesosScheduler


I also tried editing the hadoop-env.sh file by changing the line to:

export HADOOP_CLASSPATH=/usr/lib/hadoop-0.20/build/contrib/mesos/classes/:/usr/lib/hadoop-0.20/lib/mesos-0.9.0.jar:$HADOOP_CLASSPATH


And again same error. I have added the necessary MesosScheduler properties in mapred-site.xml from CM and that seems to reflect fine. Here the properties:

<property>
<name>mapred.jobtracker.taskScheduler</name>
<value>org.apache.hadoop.mapred.MesosScheduler</value>
</property>
<property>
<name>mapred.mesos.master</name>


<value>localhost.localdomain:5050</value>
</property>

Can some one tell me that how can I set HADOOP CLASSPATH from CM? Why my JobTracker is not getting the CLASSPATH when it is set directly in hadoop-env.sh?


Thanks,
Gaurav Dasgupta