I am new to Hadoop, I have a 3 node multi node set-up. Initially node 1 was Job Tracker node. I made changes in java heap size in all 3 nodes and restarted dse one by one and now I can see the Job tracker is Node2. How can I changes it back to Node1? I guess I would need to change setting in mapred.xml. Then my question would be how can this change in the first place if Node1 was job tracker?
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Hadoop question(2 posts) (1 voice)
This is resolved by executing the following command
dsetool movejt <data center>-<workload> <node IP>