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Posted to issues-all@impala.apache.org by "Sahil Takiar (JIRA)" <ji...@apache.org> on 2019/04/29 17:40:00 UTC
[jira] [Assigned] (IMPALA-8428) Add support for caching file
handles on s3
[ https://issues.apache.org/jira/browse/IMPALA-8428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sahil Takiar reassigned IMPALA-8428:
------------------------------------
Assignee: Sahil Takiar
> Add support for caching file handles on s3
> ------------------------------------------
>
> Key: IMPALA-8428
> URL: https://issues.apache.org/jira/browse/IMPALA-8428
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 3.3.0
> Reporter: Joe McDonnell
> Assignee: Sahil Takiar
> Priority: Critical
>
> 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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