Impala Public Jenkins has submitted this change and it was merged. ( )

Change subject: Remove Yarn from minicluster by default. (2nd try)

Remove Yarn from minicluster by default. (2nd try)

Remove Yarn from minicluster by default.

Turns out that we start Yarn as part of the minicluster, but we never use it.
(HiveServer2 is configured to run MR jobs "locally" in process.) Likely, this
Yarn integration is a vestige of Yarn/Llama integration.  We can save memory by
not starting it by default.

There are some less-common tooks like tests/comparison/ which use
Yarn (and Hadoop Streaming). In deference to those tools, I've left a mechanism
to start Yarn rather than excising it altogether. After running
buildall the regular way, add Yarn to the cluster by running:
  testdata/cluster/admin -y start_cluster

I tested by running core tests. I did not test the kerberized minicluster.

[Due to a git mishap, a version of this was previously checked in and reverted.]

Change-Id: I97053a44bbe32048e6c35cc28680d1c7696af13f
Reviewed-by: Michael Brown <>
Tested-by: Impala Public Jenkins <>
M testdata/cluster/admin
1 file changed, 9 insertions(+), 4 deletions(-)

  Michael Brown: Looks good to me, approved
  Impala Public Jenkins: Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I97053a44bbe32048e6c35cc28680d1c7696af13f
Gerrit-Change-Number: 9970
Gerrit-PatchSet: 2
Gerrit-Owner: Philip Zeyliger <>
Gerrit-Reviewer: Alex Behm <>
Gerrit-Reviewer: Impala Public Jenkins <>
Gerrit-Reviewer: Michael Brown <>
Gerrit-Reviewer: Philip Zeyliger <>

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