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From Andrew Purtell <apurt...@yahoo.com>
Subject RE: HBase concurrent access and BatchUpdate obj
Date Wed, 06 Aug 2008 19:49:13 GMT
I think a lot can be done with the atomic primitives increment, decrement, test-and-increment-if,
and test-and-decrement-if, 
but there is already Zookeeper for DLM right?

    - Andy

--- On Wed, 8/6/08, Jonathan Gray <jlist@streamy.com> wrote:

> From: Jonathan Gray <jlist@streamy.com>
> Subject: RE: HBase concurrent access and BatchUpdate obj
> To: hbase-user@hadoop.apache.org
> Date: Wednesday, August 6, 2008, 12:02 PM
> Chris,
> That could also work for the simple case.  Exposing the row
> locks allows us to do anything we want "within a row
> transaction" so to speak; many reads, writes...
> Jean-Adrien,
> I will probably work up an additional patch to add an
> increment insert which does the second method I described
> earlier.  I think this is actually might be a common enough
> use case that others would want it as well.
> JG


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