[jira] [Commented] (CASSANDRA-2818) A 0.8.1 version node can't join the ring made up of 0.8.0 nodes.

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-2818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13054454#comment-13054454 ] 

Jonathan Ellis commented on CASSANDRA-2818:
-------------------------------------------

Not sure what's going on. Here's what's supposed to happen:

If new node N is contacted first by old node M, N records the version of M and generates messages at that version. M never knows that N is actually newer.

If M is contacted first, we expect to see the above message a few times, but M adds N to its gossip list after the first time. Once N gets a gossip from M, it will know to use M's version when creating messages.

I don't see anything obviously wrong with this code. :(

> A 0.8.1 version node can't join the ring made up of 0.8.0 nodes.
> ----------------------------------------------------------------
>
>                 Key: CASSANDRA-2818
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2818
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.8.1
>            Reporter: Michael Allen
>             Fix For: 0.8.1
>
>
> When a 0.8.1 node tries to join a 0.8.0 ring, we see an endless supply of these in system.log:
> INFO [Thread-4] 2011-06-23 21:14:04,149 IncomingTcpConnection.java (line 103) Received connection from newer protocol version. Ignorning message.
> and the node never joins the ring.

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