St.Ack, Thanks, I read it, and actually we did tried upgrading in our QA for our real time app from 0.20.3 to 0.90.2 on Hadoop 0.20.2, but just replaced the hadoop-core with hadoop-core-0.20-append-r1056497.jar (thought it is a append anyway) shipped from Hbase 0.90.2 based on Michael Noll's suggestion. What do you think about this option and will have any potential issue? - Andy Zhong
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Stack Sent: Wednesday, June 22, 2011 11:30 PM To: [email protected] Cc: [email protected] Subject: Re: Question about Thrift when upgrading from Hbase .20.6 to .90.3 Andy: Please see http://hbase.apache.org/book/hadoop.html for our hadoop versions story. St.Ack On Wed, Jun 22, 2011 at 9:00 PM, Zhong, Andy <[email protected]> wrote: > > Karl, > > Sorry but could you let me know which hadoop version is being used, > and any compatible issue? It seems Hbase 0.90.2 and 0.90.3 are > compatible only on 0.20-append only. > > Thanks, > Andy Zhong > > > > -----Original Message----- > From: Karl Kuntz [mailto:[email protected]] > Sent: Wednesday, June 22, 2011 1:59 PM > To: [email protected] > Subject: Question about Thrift when upgrading from Hbase .20.6 to > .90.3 > > Current version .20.6 > Upgrade target 90.3 > > So Hbase .20.6 uses Thrift .2 and Hbase .90.3 makes use of Thrift .5. > We currently use the supplied ThriftServer in Hbase. > > In my initial testing for the upgrade, I've not seen any issues using > code that was generated/compiled against the earlier versions of > hbase/thrift and simply pointing them at the latest ThriftServer > supplied with .90.3 I don't see thrift mentioned specifically in the > upgrade topic in the book, and couldn't find any directly related > topics on the mailing list, so I would like to just verify this is the > expected result. > > Am I missing something subtle that could cause issues later? > > Would updating client code to use Thrift .5 provide a performance (or > some other nice) improvement? > > Thanks, > > -Karl > > >
