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Date: Sat, 19 Dec 2009 00:15:18 +0000 (UTC)
From: "Jaakko Laine (JIRA)" <jira@apache.org>
To: cassandra-commits@incubator.apache.org
Subject: [jira] Commented: (CASSANDRA-572) handle old gossip properly
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    [ https://issues.apache.org/jira/browse/CASSANDRA-572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792714#action_12792714 ] 

Jaakko Laine commented on CASSANDRA-572:
----------------------------------------

Sorry about the delay. I did this part again yesterday (somewhat different now after #603), but had insufficient time to test it properly. The patch would seem OK, so as soon as I have tested it a bit more, I'll submit it.

The problem earlier was how to handle state jump to 'leaving'. Now that pending ranges is calculated every time and we know what direction a node was going last time, this is not a problem anymore. You can expect a patch soon.


> handle old gossip properly
> --------------------------
>
>                 Key: CASSANDRA-572
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-572
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.5
>            Reporter: Jaakko Laine
>             Fix For: 0.5
>
>         Attachments: 572-handle-old-gossip.patch, use-same-APstate-for-all-node-state-gossip.patch
>
>
> (1) If a node has been moving in the ring, further bootstraps by other nodes will cause errors as they are handling STATE_LEAVING gossip without having such member in token metadata.
> (2) When a node bootstraps, it handles all ep states in the order they happen to arrive. If the first one to arrive has moved in the past (that is, it has STATE_LEAVING in its ep state), getNaturalEndpoint will throw ArrayIndexOutOfBounds exception as sortedTokens.size() == 0.

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