Yes, rolling upgrades are supported but streaming (repair, bootstrap, move) is only supported when everyone is on the same version. (Same was true for 0.7 -> 0.8.0)
On Mon, Jun 20, 2011 at 6:58 AM, Shotaro Kamio <kamios...@gmail.com> wrote: > Hi, > > NEWS.txt claims that rolling upgrade works. > Upgrading > --------- > - 0.8.1 is backwards compatible with 0.8, upgrade can be achieved by a > simple rolling restart. > ------ > > However, we got following messages when rolling upgrade from 0.8.0 > based binary to 0.8 branch binary. Our data feeder got a lot of > timeout exception during the upgrade. > Is there a message version incompatibility? Looks like CASSANDRA-2280 > changes message version number. > > ------ > INFO [Thread-1264] 2011-06-20 18:27:05,295 IncomingTcpConnection.java > (line 103) Received connection from newer protocol version. Ignorning > message. > INFO [Thread-1263] 2011-06-20 18:27:05,324 IncomingTcpConnection.java > (line 103) Received connection from newer protocol version. Ignorning > message. > INFO [Thread-1264] 2011-06-20 18:27:05,755 IncomingTcpConnection.java > (line 103) Received connection from newer protocol version. Ignorning > message. > ------ > > Regards, > Shotaro > > > On Thu, Jun 16, 2011 at 6:38 PM, Sylvain Lebresne <sylv...@datastax.com> > wrote: >> It's the two weeks anniversary of the release of Cassandra 0.8.0. And in the >> meantime there has been a fair number of bug fixes and improvements. >> >> I thus propose the following artifacts for release as 0.8.1. >> >> SVN: >> https://svn.apache.org/repos/asf/cassandra/branches/cassandra-0.8@r1136328 >> Artifacts: >> https://repository.apache.org/content/repositories/orgapachecassandra-019/org/apache/cassandra/apache-cassandra/0.8.1/ >> Staging repository: >> https://repository.apache.org/content/repositories/orgapachecassandra-019/ >> >> The artifacts as well as a debian package are also available here: >> http://people.apache.org/~slebresne/ >> >> Note that this release does not include any update of the CQL drivers and >> those are thus not included in the artifacts. Releases of the CQL drivers >> will >> now be decorrelated of the core Cassandra releases and vote for those will be >> called separately. >> >> The vote will be open for 72 hours (longer if needed). >> >> [1]: http://goo.gl/Vnau4 (CHANGES.txt) >> [2]: http://goo.gl/Ihb0U (NEWS.txt) >> >> -- >> Sylvain >> > > > > -- > Shotaro Kamio > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
