Aman Sinha has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17166 )

Change subject: IMPALA-10565: Adjust result spooling memory based on 
scratch_limit
......................................................................


Patch Set 4:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/17166/4/fe/src/main/java/org/apache/impala/planner/PlanRootSink.java
File fe/src/main/java/org/apache/impala/planner/PlanRootSink.java:

http://gerrit.cloudera.org:8080/#/c/17166/4/fe/src/main/java/org/apache/impala/planner/PlanRootSink.java@120
PS4, Line 120: scratch_limit < minMemReservationBytes
Update this and the one below to account for the extra maxRowBufferSize


http://gerrit.cloudera.org:8080/#/c/17166/4/fe/src/main/java/org/apache/impala/planner/PlanRootSink.java@142
PS4, Line 142:           maxMemReservationBytes = scratchLimit - 
maxRowBufferSize;
For this adjustment for maxRowBufferSize, can we not just do it up front (on 
line 114) since we know that maxMemReservationBytes should always be 
conservative such that it leaves a cushion for maxRowBufferSize. It should 
simplify the logic and presumably not cause other side effects (unless I am 
missing something).



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I541f46e6911694e14c0fc25be1a6982fd929d3a9
Gerrit-Change-Number: 17166
Gerrit-PatchSet: 4
Gerrit-Owner: Riza Suminto <[email protected]>
Gerrit-Reviewer: Aman Sinha <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Comment-Date: Sat, 13 Mar 2021 01:14:44 +0000
Gerrit-HasComments: Yes

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