AM-NM RPC calls occasionally takes a long time to respond
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Key: MAPREDUCE-3671
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3671
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2, nodemanager
Affects Versions: 0.23.0
Reporter: Siddharth Seth
Observed while looking at MAPREDUCE-3596 and MAPREDUCE-3656.
startContainer taking over a minute in some cases, otherwise 15 seconds. Both
were observed soon after reduce tasks started. Network congestion ? Need more
looking into.
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