[jira] [Assigned] (HADOOP-13421) Switch to v2 of the S3 List Objects API in S3A

["Aaron Fabbri (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-13421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron Fabbri reassigned HADOOP-13421:
-------------------------------------

    Assignee: Aaron Fabbri

> Switch to v2 of the S3 List Objects API in S3A
> ----------------------------------------------
>
>                 Key: HADOOP-13421
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13421
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Steven K. Wong
>            Assignee: Aaron Fabbri
>            Priority: Minor
>
> Unlike [version 1|http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html] of the S3 List Objects API, [version 2|http://docs.aws.amazon.com/AmazonS3/latest/API/v2-RESTBucketGET.html] by default does not fetch object owner information, which S3A doesn't need anyway. By switching to v2, there will be less data to transfer/process. Also, it should be more robust when listing a versioned bucket with "a large number of delete markers" ([according to AWS|https://aws.amazon.com/releasenotes/Java/0735652458007581]).
> Methods in S3AFileSystem that use this API include:
> * getFileStatus(Path)
> * innerDelete(Path, boolean)
> * innerListStatus(Path)
> * innerRename(Path, Path)
> Requires AWS SDK 1.10.75 or later.



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