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From Dhruba Borthakur <dhr...@gmail.com>
Subject Hadoop support for hbase
Date Fri, 07 May 2010 17:34:35 GMT
Hi folks,

I would like to open a discussion on how we can make HBase work well with a
supported/released version of Hadoop. HBase currently ships with a hadoop
jar and that hadoop jar is from hadoop 0.20 + a set of ten/twenty patches.
Most of these patches are focussed on HDFS append support in hadoop 0.20.
These cannot be ported back to the 0.20 branch without affecting stability
of the hadoop 0.20 branch. On the other hand, it is premature for hbase
deployments to use hadoop 0.21 because hadoop 0.21 is still under testing
and will take some time to stabilize.

My proposal is to create a new branch off the hadoop 0.20 branch and name
it branch-0.20-hbase. It will have support for append/sync and will be API
compatible with the hadoop 0.20 branch. However, this branch will be marked
"experimental" and API compatibility is subject to change. This branch will
contain all of hdfs/mapreduce/core.

If the community likes this idea, I will volunteer myself to be the release
manager for this new branch and will propose a formal vote.

comments/feedback/questions are most welcome.
dhruba


-- 
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