[jira] [Commented] (HADOOP-12709) Cut s3:// from trunk

["Mingliang Liu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-12709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15316121#comment-15316121 ] 

Mingliang Liu commented on HADOOP-12709:
----------------------------------------

Hi [~cnauroth], I filed JIRA ticket [HADOOP-13239] for deprecating s3:// from branch-2, assigned it to myself, and updated this JIRA's description. Let's track the effort of cutting it from {{trunk}} here, as what we have been doing.

> Cut s3:// from trunk
> --------------------
>
>                 Key: HADOOP-12709
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12709
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Steve Loughran
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-12709.000.patch, HADOOP-12709.001.patch, HADOOP-12709.002.patch, HADOOP-12709.003.patch, HADOOP-12709.004.patch, HADOOP-12709.005.patch
>
>
> UPDATE: This JIRA ticket is to track the effort of cutting the s3:// from {{trunk}} branch. Please see the cloned JIRA ticket [HADOOP-13239] for deprecating s3:// from {{branch-2}}.
> The fact that s3:// was broken in Hadoop 2.7 *and nobody noticed until now* shows that it's not being used. while invaluable at the time, s3n and especially s3a render it obsolete except for reading existing data.
> I propose
> # Mark Java source as {{@deprecated}}
> # Warn the first time in a JVM that an S3 instance is created, "deprecated -will be removed in future releases"
> # in Hadoop trunk we really cut it. Maybe have an attic project (external?) which holds it for anyone who still wants it. Or: retain the code but remove the {{fs.s3.impl}} config option, so you have to explicitly add it for use.



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