Hey Mike: What Jon says.  You might want to check out yesterday's
announcment.  It has a paragraph on migration:
http://www.apacheserver.net/ANN-HBase-0-90-0-available-for-download-at1114872.htm

St.Ack

On Thu, Jan 20, 2011 at 11:19 AM, Jonathan Gray <[email protected]> wrote:
> The basic steps are the same, but to go from 0.20 to 0.90 there is no actual 
> "migrate" step.  On the HBase side, all that is required is shutting down the 
> old version and coming back up with the new version.  You need to handle the 
> Hadoop upgrade as well as laid out on that wiki page.
>
> You may want to backup your hbase directory on HDFS to be safe.  Once you 
> upgrade to 0.90 there is no easy way to go back unless you have a backup.
>
> JG
>
>> -----Original Message-----
>> From: mike anderson [mailto:[email protected]]
>> Sent: Thursday, January 20, 2011 11:01 AM
>> To: [email protected]
>> Subject: Re: stargate 20.6 with hbase 20.2
>>
>> I couldn't find any specific migration instructions for 0.90.0 other than
>> http://wiki.apache.org/hadoop/Hbase/HowToMigrate.
>>
>> Is this the case?
>>
>>
>>
>> On Thu, Jan 20, 2011 at 1:27 PM, mike anderson
>> <[email protected]>wrote:
>>
>> > Thanks, decided to bite the bullet and just update to 0.90.0.
>> >
>> > Cheers,
>> > Mike
>> >
>> > On Thu, Jan 20, 2011 at 1:07 PM, Jonathan Gray <[email protected]> wrote:
>> >
>> >> It's strongly recommended that you upgrade to HBase 0.20.6 (at least)
>> >> if not HBase 0.90.0.  There are several critical bug fixes in the
>> >> releases between 0.20.2 and 0.20.6 besides stargate.
>> >>
>> >> > -----Original Message-----
>> >> > From: mike anderson [mailto:[email protected]]
>> >> > Sent: Thursday, January 20, 2011 9:57 AM
>> >> > To: [email protected]
>> >> > Subject: stargate 20.6 with hbase 20.2
>> >> >
>> >> > Does it seem reasonable that I could get Stargate 20.6 to work with
>> >> Hbase
>> >> > 20.2? I need some of the improvements made in 20.6, but would
>> >> > rather not have to upgrade my entire cluster if I don't have to.
>> >> >
>> >> > -mike
>> >>
>> >
>> >
>

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