Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/13740 )

Change subject: [WIP] IMPALA-7486: Prototype for admitting less mem on coord
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Patch Set 7:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/13740/7//COMMIT_MSG
Commit Message:

PS7:
I had a couple of higher-level thoughts:
* It looks like the estimates are in some cases higher on the coordinator than 
executors, I think because of the padding. I think this is probably mostly OK - 
there's definitely more overhead on the coordinator if the fragments are tiny.
* We probably want a "chicken bit" to fall back to the old behaviour in case 
there are regressions.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I2b94e7293b91dec8a18491079c34923eadd94b21
Gerrit-Change-Number: 13740
Gerrit-PatchSet: 7
Gerrit-Owner: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Andrew Sherman <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Lars Volker <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Comment-Date: Mon, 22 Jul 2019 07:39:09 +0000
Gerrit-HasComments: Yes

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