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From "Jan Lukavsky (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4681) ProcfsBasedProcessTree should not calculate private clean pages
Date Tue, 09 Feb 2016 11:16:18 GMT
Jan Lukavsky created YARN-4681:
----------------------------------

             Summary: ProcfsBasedProcessTree should not calculate private clean pages
                 Key: YARN-4681
                 URL: https://issues.apache.org/jira/browse/YARN-4681
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: nodemanager
    Affects Versions: 2.7.0, 2.6.0
            Reporter: Jan Lukavsky


ProcfsBasedProcessTree in Node manager calculates memory used by a process tree by parsing
`/etc/<pid>/smaps`, where it calculates `min(Pss, Shared_Dirty) + Private_Dirty + Private_Clean`.
Because not `mlocked` private clean pages can reclaimed by kernel, this should be changed
to calculating only `Locked` pages instead.



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