Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/19029 )

Change subject: IMPALA-11606: add 'untracked memory' metric
......................................................................


Patch Set 8:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/19029/8/be/src/runtime/mem-tracker.cc
File be/src/runtime/mem-tracker.cc:

http://gerrit.cloudera.org:8080/#/c/19029/8/be/src/runtime/mem-tracker.cc@272
PS8, Line 272: bytes_untracked
nit: "bytes-untracked" fits more with the other metric names.


http://gerrit.cloudera.org:8080/#/c/19029/8/be/src/runtime/mem-tracker.cc@396
PS8, Line 396:     lock_guard<SpinLock> l(child_trackers_lock_);
Do you have chance to test this in a busy cluster? Not sure if crawling the 
metrics every seconds or 0.5s will impact normal workload due to acquiring this 
lock.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib16e00109d732f759c96c7a967eb1cc32124a03f
Gerrit-Change-Number: 19029
Gerrit-PatchSet: 8
Gerrit-Owner: Xiang Yang <[email protected]>
Gerrit-Reviewer: Daniel Becker <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Jian Zhang <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Xiang Yang <[email protected]>
Gerrit-Reviewer: Xianqing He <[email protected]>
Gerrit-Comment-Date: Wed, 09 Nov 2022 00:16:50 +0000
Gerrit-HasComments: Yes

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