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From "Impala Public Jenkins (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-5297: Reduce free-pool-test mem requirement to avoid OOM
Date Wed, 10 May 2017 23:08:49 GMT
Impala Public Jenkins has submitted this change and it was merged.

Change subject: IMPALA-5297: Reduce free-pool-test mem requirement to avoid OOM

IMPALA-5297: Reduce free-pool-test mem requirement to avoid OOM

On gerrit-verify-dryrun jobs,
free-pool-test started running out of memory after updating
Kudu to a newer version which can have slightly higher
memory requirements (Kudu will reject writes when mem is 80%
full rather than 60% full). free-pool-test can allocate up
to 12gb, and the VMs have a CommitLimit of only 16gb.

While larger VMs could be used, or the minicluster could be
tuned further, free-pool-test can also be modified to
reduce the actual RSS usage. Instead of memsetting the
entire allocation in the test, we only scribble the first
byte. This reduces the max RSS from 14gb to 88mb in some
local tests.

Change-Id: I31f03e7a4d5d237a1183277c988f85a992396a43
Reviewed-by: Dan Hecht <>
Tested-by: Impala Public Jenkins
M be/src/runtime/
1 file changed, 3 insertions(+), 2 deletions(-)

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

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Gerrit-MessageType: merged
Gerrit-Change-Id: I31f03e7a4d5d237a1183277c988f85a992396a43
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Matthew Jacobs <>
Gerrit-Reviewer: Dan Hecht <>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-Reviewer: Michael Ho <>

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