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Task failed to ping TT for 60 seconds

Question asked by jsumali on Apr 8, 2014
Latest reply on Apr 29, 2014 by jsumali
A lot of our mapreduce jobs are having tasks killed with message:

Task attempt_201404071618_0132_m_000000_0 failed to ping TT for 60 seconds. Killing!

Where can I start looking to diagnose this issue? What generally causes this to happen?

It's not making our jobs fail, but tasks are being failing and jobs are not finishing as quickly.

Thanks,
Josh

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