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From "Marcel Kornacker (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-2905: Handle coordinator fragment lifecycle like all others
Date Sun, 25 Sep 2016 18:58:40 GMT
Marcel Kornacker has posted comments on this change.

Change subject: IMPALA-2905: Handle coordinator fragment lifecycle like all others
......................................................................


Patch Set 6:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4402/6/be/src/exec/push-pull-sink.cc
File be/src/exec/push-pull-sink.cc:

Line 31: constexpr int32_t QUEUE_DEPTH = 16;
> I think it's a good idea to look into moving the exprs into the sink (at th
i think if you have the sink build a queue of QueryResultSet* (and change QueryExecState::FetchRows()
to return a QueryResultSet* instead of populating one) there shouldn't be any performance
impact (minus possible numa effects, but unclear to me to what extent we need to worry about
those right now).


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ibb0064ec2f085fa3a5598ea80894fb489a01e4df
Gerrit-PatchSet: 6
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Henry Robinson <henry@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.behm@cloudera.com>
Gerrit-Reviewer: Henry Robinson <henry@cloudera.com>
Gerrit-Reviewer: Marcel Kornacker <marcel@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-HasComments: Yes

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