Pooja Nilangekar has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/11005


Change subject: [WIP] IMPALA-6153: Execute UpdateFilter() only for executing 
queries
......................................................................

[WIP] IMPALA-6153: Execute UpdateFilter() only for executing queries

This change ensures that coordinator::UpdateFilter is executed
only for queries which are in the EXECUTING state. Additionally,
it also guarantees that coordinator::ReleaseExecResources is
executed only when no other thread is executing UpdateFilter.

Testing: Ran all back-end tests.
[TODO] Add a test to verify that this change guarantees that
UpdateFilter and ReleaseExecResources never execute concurrently.

Change-Id: I669db217f86db5ff2802335e7b1ae8027ea7161c
---
M be/src/runtime/coordinator.cc
M be/src/runtime/coordinator.h
2 files changed, 40 insertions(+), 11 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/05/11005/4
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I669db217f86db5ff2802335e7b1ae8027ea7161c
Gerrit-Change-Number: 11005
Gerrit-PatchSet: 4
Gerrit-Owner: Pooja Nilangekar <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Pooja Nilangekar <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>

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