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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14738) Deprecate S3N in hadoop 3.0/2,9, target removal in Hadoop 3.1
Date Tue, 08 Aug 2017 10:24:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16118144#comment-16118144
] 

Steve Loughran commented on HADOOP-14738:
-----------------------------------------

Good Q.

On one hand: we've not given any warning

On the other: we have a full replacement, so migration is all you need to do. It's not like
we cut S3N out.

In that case we could go
# branch-2, 2.8 -> warn 
# trunk -> add that wrapper class which tells off user, maybe links to wiki entry on how
to migrate. Given changes in management of auth details (which is much more than just changed
key names), I'd not want to rush to copying over the old secret names, instead help people
move

> Deprecate S3N in hadoop 3.0/2,9, target removal in Hadoop 3.1
> -------------------------------------------------------------
>
>                 Key: HADOOP-14738
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14738
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.9.0, 3.0.0-beta1
>            Reporter: Steve Loughran
>
> We are all happy with S3A; it's been stable since Hadoop 2.7 and high-perf since Hadoop
2.8
> It's now time to kill S3N off, remove the source, the tests, the transitive dependencies.
> I propose that in Hadoop 3.0 beta we tell people off from using it, and link to a doc
page (wiki?) about how to migrate (Change URLs, update config ops).



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