Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/10158 )

Change subject: IMPALA-5384, part 2: Simplify Coordinator locking and clarify 
state
......................................................................

IMPALA-5384, part 2: Simplify Coordinator locking and clarify state

The is the final change to clarify and break up the Coordinator's lock.
The state machine for the coordinator is made explicit, distinguishing
between executing state and multiple terminal states. Logic to
transition into a terminal state is centralized in one location and
executes exactly once for each coordinator object.

Derived from a patch for IMPALA_5384 by Marcel Kornacker.

Testing:
- exhaustive functional tests
- stress test on minicluster with memory overcommitment. Verified from
  the logs that this exercises all these paths:
  - successful queries
  - client requested cancellation
  - error from exec FInstances RPC
  - error reported asynchronously via report status RPC
  - eos before backend execution completed

Change-Id: I1abdfd02163f9356c59d470fe1c64ebe012a9e8e
Reviewed-on: http://gerrit.cloudera.org:8080/10158
Reviewed-by: Dan Hecht <dhe...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
---
M be/src/runtime/coordinator-backend-state.h
M be/src/runtime/coordinator.cc
M be/src/runtime/coordinator.h
M be/src/service/client-request-state.cc
M be/src/service/impala-server.h
M be/src/util/counting-barrier.h
6 files changed, 393 insertions(+), 392 deletions(-)

Approvals:
  Dan Hecht: Looks good to me, approved
  Impala Public Jenkins: Verified

--
To view, visit http://gerrit.cloudera.org:8080/10158
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I1abdfd02163f9356c59d470fe1c64ebe012a9e8e
Gerrit-Change-Number: 10158
Gerrit-PatchSet: 22
Gerrit-Owner: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Bikramjeet Vig <bikramjeet....@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Michael Ho <k...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sail...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

Reply via email to