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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13651) S3Guard: S3AFileSystem Integration with MetadataStore
Date Tue, 01 Nov 2016 12:24:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15625300#comment-15625300
] 

Steve Loughran commented on HADOOP-13651:
-----------------------------------------

..regarding the isEmptyDir logic, if you have a plan to address that, then yes, get the merge
in, with a separate task to clean up the logic. It may render HADOOP-13736 obsolete too, so
maybe hold back on that change until there's redone empty dir checks. This would keep the
cache more generic

> S3Guard: S3AFileSystem Integration with MetadataStore
> -----------------------------------------------------
>
>                 Key: HADOOP-13651
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13651
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Aaron Fabbri
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-13651-HADOOP-13345.001.patch, HADOOP-13651-HADOOP-13345.002.patch,
HADOOP-13651-HADOOP-13345.003.patch
>
>
> Modify S3AFileSystem et al. to optionally use a MetadataStore for metadata consistency
and caching.
> Implementation should have minimal overhead when no MetadataStore is configured.



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