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Hadoop, mail # user - DataNode heartbeat average time peaks


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DataNode heartbeat average time peaks
Ivan Tretyakov 2013-03-25, 14:43
Hi!

We see DataNode heartbeat average time peaks in Ganglia up to 20-70 seconds
while SecondaryNameNode performs checkpointing.
See attached screenshots please.

I would like to clarify if it is Ok, or not. And what kind of consequences
and risks it could bring up.

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Best Regards
Ivan Tretyakov