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Hadoop Operations and Cluster Management Cookbook by Shumin Guo

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Tuning the TaskTracker configuration

TaskTrackers accept tasks from the JobTracker in a cluster and forks JVMs to run the tasks. A couple of TaskTracker properties can be configured based on the configuration of the cluster.

In this section, we will list steps to configure the TaskTracker property.

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 TaskTracker properties:

  1. Stop the ...

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