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Posted to issues-all@impala.apache.org by "Michael Smith (Jira)" <ji...@apache.org> on 2022/07/28 20:28:00 UTC

[jira] [Commented] (IMPALA-10214) Ozone support for file handle cache

    [ https://issues.apache.org/jira/browse/IMPALA-10214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17572642#comment-17572642 ] 

Michael Smith commented on IMPALA-10214:
----------------------------------------

Local file handles are already cached because Ozone shares the HDFS implementation. We likely want to assign a separate cache for Ozone local file handles ({{DiskIoMgr::file_handle_cache_}}).

> Ozone support for file handle cache
> -----------------------------------
>
>                 Key: IMPALA-10214
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10214
>             Project: IMPALA
>          Issue Type: Sub-task
>          Components: Backend
>            Reporter: Sahil Takiar
>            Priority: Major
>
> This is dependent on the Ozone input streams supporting the {{CanUnbuffer}} interface first (last I checked, the input streams don't implement the interface).



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