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https://issues.apache.org/jira/browse/HIVE-21229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-21229:
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Issue Type: Improvement (was: Bug)
> Tez: Provide a Node-Label split affinity provider
> -------------------------------------------------
>
> Key: HIVE-21229
> URL: https://issues.apache.org/jira/browse/HIVE-21229
> Project: Hive
> Issue Type: Improvement
> Reporter: Gopal V
> Priority: Major
>
> When the queue has node-labels, the delays involved in waiting for node
> locality are a net-loss to the query.
> Asking for locality in a node which is not available to the current queue is
> slowing down YARN task allocations.
> Also specifically, for the 3-replica HDFS case, picking the replica that
> belongs within the node-label is more efficient than picking a non-available
> node & falling back to rack_local instead.
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