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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15107) Prove the correctness of the new committers, or fix where they are not correct
Date Thu, 24 May 2018 12:04:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16488867#comment-16488867
] 

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

StagingCommitter subclasses to extend toString; currently the logs 

{code}
18/05/22 16:41:17 INFO AbstractS3ACommitterFactory: Using Commmitter StagingCommitter{AbstractS3ACommitter{role=Task
committer attempt_20180522164116_0000_m_000000_0, namedirectory, ...
{code}

Note also I've misspelt Committer in {{AbstractS3ACommitterFactory}} log. oops. I only have
spell check enabled for comments, not strings.

> Prove the correctness of the new committers, or fix where they are not correct
> ------------------------------------------------------------------------------
>
>                 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: Major
>         Attachments: HADOOP-15107-001.patch, HADOOP-15107-002.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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