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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.
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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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