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Hadoop Operations and Cluster Management Cookbook by Shumin Guo

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Tuning the JobTracker configuration

In a Hadoop cluster, the JobTracker is responsible for managing jobs and tasks. The performance of the JobTracker is critical for the whole cluster. Hadoop provides a few properties for administrators to tune the JobTracker. In this recipe, we will list the steps to configure the JobTracker.

Getting ready

We assume that the Hadoop cluster has been properly configured and all the daemons are running without any issues.

Log in from the Hadoop cluster administrator machine to the cluster master node using the following command:

ssh hduser@master

Note

In this recipe, we assume all the configurations are making changes to the $HADOOP_HOME/conf/mapred-site.xml file.

How to do it...

Use the following steps to configure the ...

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