Bikramjeet Vig has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/13061


Change subject: IMPALA-7665: Fix unwarranted query cancellation on statestore 
restart
......................................................................

IMPALA-7665: Fix unwarranted query cancellation on statestore restart

Currently, if the statestore restarts and disseminates an inconsistent
view of cluster membership to the coordinators, then they might believe
that the backends no longer in the membership update are down and would
start canceling queries that are running or scheduled to run on those
allegedly failed backends. This patch adds a grace period after
statestore recovery/successful registration that give it enough time
to gather a consistent state of the cluster.

Testing: Added an e2e test

Change-Id: I30b68bd8bde4bf589d58d42d6f683afb166de959
---
M be/src/service/impala-server.cc
M be/src/statestore/statestore-subscriber.cc
M be/src/statestore/statestore-subscriber.h
M tests/custom_cluster/test_restart_services.py
4 files changed, 66 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/61/13061/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I30b68bd8bde4bf589d58d42d6f683afb166de959
Gerrit-Change-Number: 13061
Gerrit-PatchSet: 1
Gerrit-Owner: Bikramjeet Vig <[email protected]>

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