[jira] [Commented] (CASSANDRA-3166) Rolling upgrades from 0.7 to 0.8 not possible

["Marcus Eriksson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101181#comment-13101181 ] 

Marcus Eriksson commented on CASSANDRA-3166:
--------------------------------------------

oh, note that it fails all the way to the client as well, timeouts in hector

> Rolling upgrades from 0.7 to 0.8 not possible
> ---------------------------------------------
>
>                 Key: CASSANDRA-3166
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3166
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7.5, 0.7.9, 0.8.4
>            Reporter: Marcus Eriksson
>
> We are in the progress of upgrading to 0.8 and we need to do a rolling upgrade, this fails miserably and it is reproducible;
> 1. set up a 3 node cluster with 0.7.9 and rf=3, read and write, QUORUM
> 2. upgrade one of the nodes (i upped a seednode, not sure if that is important)
> 3. continue reading/writing
> 4. see logs on the 0.7 node fill up with: INFO 12:36:08,240 Received connection from newer protocol version. Ignorning message.
> it does work if i start the 0.7.9 nodes *after* the 0.8.4 node which makes me think that it matters if it is the 0.8 node connecting to the 0.7 nodes or the other way round.
> Debug logging on the 0.8 node shows:
> /var/log/cassandra/system.log.9:DEBUG [pool-2-thread-82] 2011-09-09 11:55:06,067 StorageProxy.java (line 178) Write timeout java.util.concurrent.TimeoutException for one (or more) of: 
> /var/log/cassandra/system.log.9:DEBUG [pool-2-thread-76] 2011-09-09 11:55:06,067 StorageProxy.java (line 584) Read timeout: java.util.concurrent.TimeoutException: Operation timed out - received only 1 responses from /193.182.3.92,  .
> nothing except for the "newer protocol version..." in the 0.7-logs
> i will continue to look at this issue but if anyone has a quick patch, let me know

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