[Impala-ASF-CR] IMPALA-7857: log more information about statestore failure detection

["Tim Armstrong (Code Review)" <ge...@cloudera.org>]

Tim Armstrong has uploaded a new patch set (#2). ( http://gerrit.cloudera.org:8080/11937 )

Change subject: IMPALA-7857: log more information about statestore failure detection
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IMPALA-7857: log more information about statestore failure detection

This adds a couple of log messages for state transitions in the
statestore's failure detector.

Testing:
Ran test_statestore.py and checked for presence of new log messages.

Added a new tests to test_statestore that exercises handling of
intermittent heartbeat failures (required to produce one of the new log
messages).

Change-Id: Ie6ff85bee117000e4434dcffd3d1680a79905f14
---
M be/src/statestore/failure-detector.cc
M be/src/statestore/failure-detector.h
M tests/statestore/test_statestore.py
3 files changed, 44 insertions(+), 9 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/37/11937/2
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ie6ff85bee117000e4434dcffd3d1680a79905f14
Gerrit-Change-Number: 11937
Gerrit-PatchSet: 2
Gerrit-Owner: Tim Armstrong <ta...@cloudera.com>