[jira] [Commented] (HADOOP-17415) Use S3 content-range header to update length of an object during reads

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-17415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18039023#comment-18039023 ] 

ASF GitHub Bot commented on HADOOP-17415:
-----------------------------------------

github-actions[bot] commented on PR #3939:
URL: https://github.com/apache/hadoop/pull/3939#issuecomment-3544466261

   We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
   If you feel like this was a mistake, or you would like to continue working on it, please feel free to re-open it and ask for a committer to remove the stale tag and review again.
   Thanks all for your contribution.




> Use S3 content-range header to update length of an object during reads
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-17415
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17415
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.3.0
>            Reporter: Steve Loughran
>            Assignee: Monthon Klongklaew
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> As part of all the openFile work, knowing full length of an object allows for a HEAD to be skipped. But: code knowing only the splits don't know the final length of the file.
> If the content-range header is used, then as soon as a single GET is initiated against an object, if the field is returned then we can update the length of the S3A stream to its real/final length
> Also: when any input stream fails with an EOF exception, we can distinguish stream-interrupted from "no, too far"



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