Hive Client is hanging since MRApp Master doesnt exist after the task is
finished
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Key: HIVE-2945
URL: https://issues.apache.org/jira/browse/HIVE-2945
Project: Hive
Issue Type: Bug
Components: Clients
Reporter: Kristam Subba Swathi
Submit a hive query which uses mapred to give the result(Say join query)
If we submit a job to resourceManager process. it will create a MRAppMaster
process to excute this task .
MRAppMaster will create YarnChild process to excute Map task or reduce task.
after task is finished,resourceManager will kill MRAppMaster and YarnChild
process.
When the hive client is about to get the progress from MRAppMaster ,the task is
already finished ,so MRAppMaster process don't exist. so the client will try to
connect it for ever.
that's why hive client hangs.
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