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https://issues.apache.org/jira/browse/IMPALA-7353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16721614#comment-16721614
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ASF subversion and git services commented on IMPALA-7353:
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Commit b2e63da2bad513864fcad3341e7206c24c166dcc in impala's branch
refs/heads/master from [~bikram.sngh91]
[ https://git-wip-us.apache.org/repos/asf?p=impala.git;h=b2e63da ]
IMPALA-7351 IMPALA-7353: Add justification for constant memory estimates
Added justification as comments for UNION, SELECT and Data Source scan
nodes that have a constant memory estimate.
Change-Id: I0049ea2f50400bd264d9257df0fac7397abb357c
Reviewed-on: http://gerrit.cloudera.org:8080/12063
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Fix bogus too-high memory estimates
> -----------------------------------
>
> Key: IMPALA-7353
> URL: https://issues.apache.org/jira/browse/IMPALA-7353
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Reporter: Tim Armstrong
> Assignee: Bikramjeet Vig
> Priority: Major
> Labels: resource-management
>
> Some operators have bogus memory estimates that are probably way too high. We
> should adjust them to be a little more realistic.
> E.g. in HBaseScanNode:
> {code}
> @Override
> public void computeNodeResourceProfile(TQueryOptions queryOptions) {
> // TODO: What's a good estimate of memory consumption?
> nodeResourceProfile_ = ResourceProfile.noReservation(1024L * 1024L *
> 1024L);
> }
> {code}
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