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Posted to yarn-issues@hadoop.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/09/23 05:43:20 UTC
[jira] [Updated] (YARN-5551) Ignore deleted file mapping from
memory computation when smaps is enabled
[ https://issues.apache.org/jira/browse/YARN-5551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rajesh Balamohan updated YARN-5551:
-----------------------------------
Attachment: YARN-5551.branch-2.002.patch
Attaching .2 version which takes into account "anonymous".
> Ignore deleted file mapping from memory computation when smaps is enabled
> -------------------------------------------------------------------------
>
> Key: YARN-5551
> URL: https://issues.apache.org/jira/browse/YARN-5551
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Minor
> Attachments: YARN-5551.branch-2.001.patch, YARN-5551.branch-2.002.patch
>
>
> Currently deleted file mappings are also included in the memory computation when SMAP is enabled. For e.g
> {noformat}
> 7f612004a000-7f612004c000 rw-s 00000000 00:10 4201507513 /dev/shm/HadoopShortCircuitShm_DFSClient_NONMAPREDUCE_-521969216_162_734673185 (deleted)
> Size: 8 kB
> Rss: 4 kB
> Pss: 2 kB
> Shared_Clean: 0 kB
> Shared_Dirty: 4 kB
> Private_Clean: 0 kB
> Private_Dirty: 0 kB
> Referenced: 4 kB
> Anonymous: 0 kB
> AnonHugePages: 0 kB
> Swap: 0 kB
> KernelPageSize: 4 kB
> MMUPageSize: 4 kB
> 7fbf28000000-7fbf68000000 rw-s 00000000 08:02 11927571 /tmp/7298569189125604642/arena-1291157252088664681.cache (deleted)
> Size: 1048576 kB
> Rss: 17288 kB
> Pss: 17288 kB
> Shared_Clean: 0 kB
> Shared_Dirty: 0 kB
> Private_Clean: 232 kB
> Private_Dirty: 17056 kB
> Referenced: 17288 kB
> Anonymous: 0 kB
> AnonHugePages: 0 kB
> Swap: 0 kB
> KernelPageSize: 4 kB
> MMUPageSize: 4 kB
> {noformat}
> It would be good to exclude these from getSmapBasedRssMemorySize() computation.
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