Rajesh Balamohan created YARN-5551:
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Summary: 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
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
7f6123f99000-7f6163f99000 rw-p 00000000 08:41 211419477
/grid/4/hadoop/yarn/local/usercache/root/appcache/application_1466700718395_1249/container_e19_1466700718395_1249_01_000003/7389389356021597290.cache
(deleted)
Size: 1048576 kB
Rss: 637292 kB
Pss: 637292 kB
Shared_Clean: 0 kB
Shared_Dirty: 0 kB
Private_Clean: 0 kB
Private_Dirty: 637292 kB
Referenced: 637292 kB
Anonymous: 637292 kB
AnonHugePages: 0 kB
Swap: 0 kB
KernelPageSize: 4 kB
{noformat}
It would be good to exclude these from getSmapBasedRssMemorySize() computation.
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