[Impala-CR](cdh5-2.5.0_5.7.0) IMPALA-3107: Change DataStreamMgr::lock_ to mutex

["Henry Robinson (Code Review)" <ge...@cloudera.org>]

Henry Robinson has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2433

Change subject: IMPALA-3107: Change DataStreamMgr::lock_ to mutex
......................................................................

IMPALA-3107: Change DataStreamMgr::lock_ to mutex

DataStreamSender::Cancel() takes several other locks while holding
DataStreamMgr::lock_, so it's not a good idea for other clients of the
class to be spinning on such a widely-held lock waiting for Cancel() to
come back.

Change-Id: Ifa9825188c7b5bbc991650be8b13ffcc1e580412
---
M be/src/runtime/data-stream-mgr.cc
M be/src/runtime/data-stream-mgr.h
2 files changed, 7 insertions(+), 7 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/33/2433/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ifa9825188c7b5bbc991650be8b13ffcc1e580412
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-2.5.0_5.7.0
Gerrit-Owner: Henry Robinson <he...@cloudera.com>