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https://issues.apache.org/jira/browse/IMPALA-10213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17579891#comment-17579891
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Michael Smith commented on IMPALA-10213:
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The {{REPLICA_PREFERENCE=REMOTE}} query option can be used to force queries to 
always be remote. That's a good out for Ozone too.

> Handle block location for Ozone
> -------------------------------
>
>                 Key: IMPALA-10213
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10213
>             Project: IMPALA
>          Issue Type: Sub-task
>          Components: Backend
>            Reporter: Attila Doroszlai
>            Assignee: Michael Smith
>            Priority: Major
>
> Currently Impala treats Ozone as a remote filesystem, similar to S3A, ADLS 
> etc.  Ozone provides block location info in its Hadoop-compatible FS 
> implementations.  Also, Ozone can be colocated with Impala daemons.  It would 
> be nice if Impala could be improved to use Ozone's location info to support 
> locality of execution.
> Look into unit tests to validate that reads in the mini-cluster are 
> DISK_LOCAL rather than REMOTE.



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