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From "Matthew Jacobs (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-5644: Reject queries if min reservation is too large
Date Wed, 16 Aug 2017 23:17:35 GMT
Matthew Jacobs has uploaded a new patch set (#3).

Change subject: IMPALA-5644: Reject queries if min reservation is too large

IMPALA-5644: Reject queries if min reservation is too large

Rejects queries during admission control if:
* the largest (across all backends) min buffer reservation is
  greater than the query mem_limit or buffer_pool_limit
* the sum of the min buffer reservations across the cluster
  is larger than the pool max mem resources

There are some other interesting cases to consider later:
* every per-backend min buffer reservation is less than the
  associated backend's process mem_limit; the current
  admission control code doesn't know about other backend's
  proc mem_limits.

Some minor code refactoring in admission-controller and

* Added new test cases in

Change-Id: Iabe87ce8f460356cfe4d1be4d7092c5900f9d79b
M be/src/runtime/bufferpool/CMakeLists.txt
M be/src/runtime/bufferpool/
A be/src/runtime/bufferpool/
A be/src/runtime/bufferpool/reservation-util.h
M be/src/runtime/
M be/src/scheduling/
M be/src/scheduling/admission-controller.h
M be/src/scheduling/scheduler.h
M common/thrift/
M tests/custom_cluster/
10 files changed, 279 insertions(+), 64 deletions(-)

  git pull ssh:// refs/changes/78/7678/3
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Iabe87ce8f460356cfe4d1be4d7092c5900f9d79b
Gerrit-PatchSet: 3
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Matthew Jacobs <>
Gerrit-Reviewer: Dan Hecht <>
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-Reviewer: Tim Armstrong <>

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