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https://issues.apache.org/jira/browse/IMPALA-10599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhi tang updated IMPALA-10599:
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Summary: The coordinator should avoid distributing query fragments to busy
nodes. (was: The coordinator should avoid distributing query fragments to
exception nodes.)
> The coordinator should avoid distributing query fragments to busy nodes.
> ------------------------------------------------------------------------
>
> Key: IMPALA-10599
> URL: https://issues.apache.org/jira/browse/IMPALA-10599
> Project: IMPALA
> Issue Type: Improvement
> Components: Distributed Exec
> Affects Versions: Impala 3.2.0, Impala 3.4.0
> Environment: LSB Version: core-4.1-amd64
> Distributor ID: CentOS
> Description: CentOS release 7.4.1708.7
> Release: 7.4.1708.7
> impala version: 3.2.0
> Reporter: zhi tang
> Priority: Major
> Labels: features
>
> When I join[shuffle] with unbalanced fields, there will be data-skewed nodes
> during execution.This will result in the skewed node being under high load
> for a long time, because the query is likely to be endless.If other queries
> are committed or running during this time, they may be rejected or an
> exception thrown.
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