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https://issues.apache.org/jira/browse/IMPALA-8428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sahil Takiar resolved IMPALA-8428.
----------------------------------
       Resolution: Fixed
    Fix Version/s: Impala 3.3.0

> Add support for caching file handles on s3
> ------------------------------------------
>
>                 Key: IMPALA-8428
>                 URL: https://issues.apache.org/jira/browse/IMPALA-8428
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 3.3.0
>            Reporter: Joe McDonnell
>            Assignee: Sahil Takiar
>            Priority: Critical
>             Fix For: Impala 3.3.0
>
>
> The file handle cache is currently disabled for S3, as the S3 connector 
> needed to implement proper unbuffer support. Now that 
> https://issues.apache.org/jira/browse/HADOOP-14747 is fixed, Impala should 
> provide an option to cache S3 file handles.
> This is particularly important for data caching, as accessing the data cache 
> happens after obtaining a file handle. If getting a file handle is slow, the 
> caching will be less effective.



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