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https://issues.apache.org/jira/browse/HADOOP-13239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingliang Liu updated HADOOP-13239:
-----------------------------------
    Description: 
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.

[HADOOP-12709] cuts the s3:// from {{trunk}} branch, and this JIRA ticket is to 
deprecate it from {{branch-2}}.
# 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"

Thanks [[email protected]] for the proposal.

  was:
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.


> Deprecate s3:// in branch-2
> ---------------------------
>
>                 Key: HADOOP-13239
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13239
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>
> 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.
> [HADOOP-12709] cuts the s3:// from {{trunk}} branch, and this JIRA ticket is 
> to deprecate it from {{branch-2}}.
> # 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"
> Thanks [[email protected]] for the proposal.



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