[Impala-ASF-CR] IMPALA-5823: fix SET DENY RESERVATION PROBABILITY

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

Tim Armstrong has uploaded a new patch set (#3).

Change subject: IMPALA-5823: fix SET_DENY_RESERVATION_PROBABILITY
......................................................................

IMPALA-5823: fix SET_DENY_RESERVATION_PROBABILITY

Always set the probability even if the client is not yet open.
This always worked but added comments explicitly mentioning
that it should work.

This caused one of the large row tests to start failing with a "failed
to repartition" error in the aggregation. The error is a false positive
caused by two distinct keys hashing to the same partition. Removing the
check allows the query to succeed because the keys hash to different
partitions in the next round of repartitioning.

Testing:
Ran TestSpilling in a loop for a couple of hours, including the
exhaustive-only tests.

Change-Id: Ib26b697544d6c2312a8e1fe91b0cf8c0917e5603
---
M be/src/exec/exec-node.cc
M be/src/exec/exec-node.h
M be/src/exec/partitioned-aggregation-node.cc
M be/src/exec/partitioned-aggregation-node.h
M common/thrift/generate_error_codes.py
5 files changed, 33 insertions(+), 44 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/71/7771/3
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ib26b697544d6c2312a8e1fe91b0cf8c0917e5603
Gerrit-PatchSet: 3
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <ta...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dh...@cloudera.com>