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From "Michael Ho (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-2550: Switch to per-query exec rpc
Date Mon, 17 Apr 2017 21:01:02 GMT
Michael Ho has posted comments on this change.

Change subject: IMPALA-2550: Switch to per-query exec rpc

Patch Set 6:

File be/src/exec/

PS4, Line 66:   
> how so?
We use indentation 4 for line continuation. See line 119 below.
File be/src/runtime/

PS4, Line 184: 
             :   if (!rpc_status.ok()) {
> out of scope for this patch.
how is this out of scope ?

Line 365:   TPublishFilterResult res;
> i left that in there as a reminder to myself to think this through again.
At which version of this patch will this be thought through ?

PS4, Line 391: 
> IsDone() simply returns a bool, not sure what you mean.
*done = IsDone();

PS4, Line 434: 
> it wasn't there before, and it has the potential to spam the log.
I don't see how this can spam the log if it's not expected to occur frequently. If it happens
very frequently, then there is something wrong.
File common/thrift/ImpalaInternalService.thrift:

PS4, Line 399: across 
> there are two indices, which come in handy in different situation:
So, is this a per fragment index different from the globally unique instance index ? Can you
provide more clarification on how each of them is used and add a remark they are really different.
It's important to be as clear as possible to avoid confusion.

PS4, Line 400: num_fragment_instances
I don't see a field called num_fragment_instances in TPlanFragmentCtx defined above.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I20769e420711737b6b385c744cef4851cee3facd
Gerrit-PatchSet: 6
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Marcel Kornacker <>
Gerrit-Reviewer: Dan Hecht <>
Gerrit-Reviewer: Henry Robinson <>
Gerrit-Reviewer: Marcel Kornacker <>
Gerrit-Reviewer: Michael Ho <>
Gerrit-HasComments: Yes

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