Tim Armstrong has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/8933


Change subject: IMPALA-6362: avoid Reservation/MemTracker deadlock
......................................................................

IMPALA-6362: avoid Reservation/MemTracker deadlock

Avoid the circular dependency between ReservationTracker::lock_ and
MemTracker::child_trackers_lock_ by not acquiring
ReservationTracker::lock_ in GetReservation(), where an atomic
operation is sufficient.

Change-Id: Id7adbe961a925075422c685690dd3d1609779ced
---
M be/src/runtime/bufferpool/reservation-tracker.cc
M be/src/runtime/bufferpool/reservation-tracker.h
M be/src/util/memory-metrics.cc
3 files changed, 24 insertions(+), 11 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/33/8933/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Id7adbe961a925075422c685690dd3d1609779ced
Gerrit-Change-Number: 8933
Gerrit-PatchSet: 1
Gerrit-Owner: Tim Armstrong <[email protected]>

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