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From Devaraj Das <d...@hortonworks.com>
Subject Re: Hadoop 0.22 update
Date Tue, 02 Aug 2011 20:07:48 GMT
+1 to removing the TaskController code for the 0.22 release.

In the MR-279 branch, the security issues identified in MAPREDUCE-2178 have been taken care
of (to my knowledge). 

On Aug 2, 2011, at 12:58 PM, Eli Collins wrote:

> On Tue, Aug 2, 2011 at 12:25 PM, Eli Collins <eli@cloudera.com> wrote:
>> On Tue, Aug 2, 2011 at 12:19 PM,  <Milind.Bhandarkar@emc.com> wrote:
>>> Having talked to various folks in the community about their willingness to
>>> stabilize and use 0.22 and make it production-quality, here is what I
>>> propose:
>>> 1. Cut a release 0.22.0 without mapreduce-2178 patch, with
>>> hadoop.security.authentication set to simple (I.e. No authentication).
>>> Make sure that MR-2178 is highlighted as known-issue in the top-level dir
>>> (create a KNOWN-ISSUES.txt ?), and carry out a vote.
>>> 2. Later, when MR-2178 patch is committed, cut a release for 0.22.1. (I
>>> have heard of folks working on it, but no date commitments yet.)
>>> The reason a 0.22.0 release should happen, IMHO, even without MR-2178, is
>>> that the other components of Hadoop stack (e.g. Pig, hbase, hive etc) will
>>> have a release to test against, and fix any issues for incompatibility.
>>> Also, for folks who do not use kerberos authentication (>90% of the hadoop
>>> users, to my knowledge), it will be a release closest to trunk, with HDFS
>>> appends. Plus, any issues found in the HDFS part of the release would be
>>> directly applicable to the trunk and other future releases. (Not so about
>>> map-reduce, which will undergo major surgery in trunk because of MR-279.)
>>> Thoughts ?
>> Sounds reasonable to me.  #1 is what we did for the 0.21 release.
> Actually, I didn't read close enough. For 0.21 we actually removed the
> task tracker, think it makes sense to do that here as well.
> Thanks,
> Eli

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