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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10690) Drop Hadoop-1 support
Date Sat, 08 Mar 2014 09:37:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924777#comment-13924777
] 

Andrew Purtell commented on HBASE-10690:
----------------------------------------

It would be great to release just one artifact again. I'd like to see us build each release
against the latest Hadoop release available during the commit train up to the release point.
We should not hesitate to use new HDFS performance features as they come in, and use reflection/compat
modules/Maven profiles that give users or vendors backwards compatible build options against
a few earlier versions. 

> Drop Hadoop-1 support
> ---------------------
>
>                 Key: HBASE-10690
>                 URL: https://issues.apache.org/jira/browse/HBASE-10690
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Enis Soztutar
>            Priority: Critical
>             Fix For: 0.99.0
>
>
> As per thread:
> http://mail-archives.apache.org/mod_mbox/hbase-dev/201403.mbox/%3CCAMUu0w93MGp7ZBbxGccOV+be3EtMkvn5ATZOwvzQD_gegdK4NQ@mail.gmail.com%3E
> It seems that the consensus is that supporting Hadoop-1 in HBase-1.x will be costly,
so we should drop the support. 
> In this issue: 
>  - We'll document that Hadoop-1 support is deprecated in HBase-0.98. And users should
switch to hadoop-2.2+ anyway. 
>  - Document that upcoming HBase-0.99 and HBase-1.0 releases will not have Hadoop-1 support.

>  - Document that there is no rolling upgrade support for going between Hadoop-1 and Hadoop-2
(using HBase-0.96 or 0.98).
>  - Release artifacts won't contain HBase build with Hadoop-1. 
>  - We may keep the profile, jenkins job etc if we want.



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