Sailesh Mukil has posted comments on this change.

Change subject: IMPALA-3610: Account for memory used by filters in the 
coordinator
......................................................................


Patch Set 4:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4066/4/be/src/runtime/coordinator.cc
File be/src/runtime/coordinator.cc:

PS4, Line 474: filter_mem_tracker_
An issue here is that if there exists a coordinator fragment, this 
filter_mem_tracker_ will be the child of the 
Coordinator::executor_->runtime_state()->query_mem_tracker(), which will be 
destroyed before this filter_mem_tracker_ is destroyed, which could be the 
source of some problems.

Should we just make the filter_mem_tracker_ the child of the process mem 
tracker? Since it doesn't belong to any single query anyway.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I3c52c8a1c2e79ef370c77bf264885fc859678d1b
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Henry Robinson <[email protected]>
Gerrit-Reviewer: Henry Robinson <[email protected]>
Gerrit-Reviewer: Marcel Kornacker <[email protected]>
Gerrit-Reviewer: Sailesh Mukil <[email protected]>
Gerrit-HasComments: Yes

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