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https://issues.apache.org/jira/browse/HIVE-18665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-18665:
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Affects Version/s: 3.0.0
> LLAP: Ignore cache-affinity if the LLAP IO elevator is disabled
> ---------------------------------------------------------------
>
> Key: HIVE-18665
> URL: https://issues.apache.org/jira/browse/HIVE-18665
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
>
> SplitLocationProvider removes HDFS locality in LLAP, causing more network
> traffic when reading file formats which aren't currently cached.
> In the absence of the IO elevator, cache affinity should be disabled.
> This information is encoded into the MapWork in deriveLlapIoDescString, move
> this to an Enum type for comparisons.
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