Jason Lowe created YARN-476:
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Summary: ProcfsBasedProcessTree info message confuses users
Key: YARN-476
URL: https://issues.apache.org/jira/browse/YARN-476
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 0.23.6
Reporter: Jason Lowe
ProcfsBasedProcessTree has a habit of emitting not-so-helpful messages such as
the following:
{noformat}
2013-03-13 12:41:51,957 INFO [communication thread]
org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28747 may have
finished in the interim.
2013-03-13 12:41:51,958 INFO [communication thread]
org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28978 may have
finished in the interim.
2013-03-13 12:41:51,958 INFO [communication thread]
org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28979 may have
finished in the interim.
{noformat}
As described in MAPREDUCE-4570, this is something that naturally occurs in the
process of monitoring processes via procfs. It's uninteresting at best and can
confuse users who think it's a reason their job isn't running as expected when
it appears in their logs.
We should either make this DEBUG or remove it entirely.
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