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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15107) Stabilize/tune S3A committers; review correctness & docs
Date Wed, 29 Aug 2018 17:19:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16596618#comment-16596618
] 

Steve Loughran commented on HADOOP-15107:
-----------------------------------------

 I want this to go in to Hadoop 3.2; there's no significant change in semantics here other
than better resilience, error reporting and a quieter abort phase.

Can I get some reviews? This is a great opportunity to learn about the commit mechanism

> Stabilize/tune S3A committers; review correctness & docs
> --------------------------------------------------------
>
>                 Key: HADOOP-15107
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15107
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.1.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Blocker
>         Attachments: HADOOP-15107-001.patch, HADOOP-15107-002.patch, HADOOP-15107-003.patch,
HADOOP-15107-004.patch
>
>
> I'm writing about the paper on the committers, one which, being a proper paper, requires
me to show the committers work.
> # define the requirements of a "Correct" committed job (this applies to the FileOutputCommitter
too)
> # show that the Staging committer meets these requirements (most of this is implicit
in that it uses the V1 FileOutputCommitter to marshall .pendingset lists from committed tasks
to the final destination, where they are read and committed.
> # Show the magic committer also works.



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