Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12299 )

Change subject: IMPALA-2990: timeout unresponsive queries in coordinator
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Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/12299/2/be/src/runtime/coordinator-backend-state.h
File be/src/runtime/coordinator-backend-state.h:

http://gerrit.cloudera.org:8080/#/c/12299/2/be/src/runtime/coordinator-backend-state.h@137
PS2, Line 137: boost::lock_guard<boost::mutex> l(lock_);
> Is that something we can rely on in all possible environments in which Impa
Yes, I suppose it may not hold true for all architecture. It generally holds 
for x86-64 architecture. That said, Impala is quite x86 centric although there 
were works in the past to port it to Power architecture.

Anyhow, this is not important unless we see any contention during perf testing.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I196c8c6a5633b1960e2c3a3884777be9b3824987
Gerrit-Change-Number: 12299
Gerrit-PatchSet: 2
Gerrit-Owner: Thomas Marshall <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Ho <[email protected]>
Gerrit-Reviewer: Philip Zeyliger <[email protected]>
Gerrit-Reviewer: Thomas Marshall <[email protected]>
Gerrit-Comment-Date: Tue, 26 Feb 2019 00:57:19 +0000
Gerrit-HasComments: Yes

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