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From "Alex Behm (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-2905: Handle coordinator fragment lifecycle like all others
Date Wed, 21 Sep 2016 18:51:40 GMT
Alex Behm 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;
> Thanks for pointing that out!
I don't think there is comprehensive documentation. I'd recommend looking at the nested-loop-join
build because that has exactly the same issue of accumulating batches and we have a solution
for it there.

However, in this specific case it might make more sense to push output exprs into the sink
and immediately Reset() the batches consumed from the exec node tree as intended.


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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-HasComments: Yes

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