[Impala-ASF-CR] IMPALA-5713: always reserve memory for preaggs

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

Tim Armstrong has uploaded a new patch set (#2).

Change subject: IMPALA-5713: always reserve memory for preaggs
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IMPALA-5713: always reserve memory for preaggs

This has two parts:
* Changing the frontend reservation calculation
* Removing dead code in the backend that handled the case when the
  initial partitions and hash tables could not be allocated.

Testing:
Passes exhaustive tests.

Change-Id: I2b544f9ec1a906719e2bbb074743926b95a3a573
---
M be/src/exec/partitioned-aggregation-node-ir.cc
M be/src/exec/partitioned-aggregation-node.cc
M be/src/exec/partitioned-aggregation-node.h
M fe/src/main/java/org/apache/impala/planner/AggregationNode.java
M testdata/workloads/functional-planner/queries/PlannerTest/max-row-size.test
M testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation.test
M testdata/workloads/functional-planner/queries/PlannerTest/resource-requirements.test
M testdata/workloads/functional-planner/queries/PlannerTest/spillable-buffer-sizing.test
M testdata/workloads/functional-query/queries/QueryTest/spilling-aggs.test
9 files changed, 108 insertions(+), 119 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/39/7739/2
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I2b544f9ec1a906719e2bbb074743926b95a3a573
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <ta...@cloudera.com>