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From "Rick Branson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5565) Peer entry drops from system table silently when bootstrapping a node with an existing IP.
Date Tue, 14 May 2013 21:09:17 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13657512#comment-13657512
] 

Rick Branson commented on CASSANDRA-5565:
-----------------------------------------

That's exactly what I expected to occur. As soon as the node I wiped joined, the tokens from
it's previous incarnation were completely dropped from the ring, causing the ranges to shift.
Perhaps I'm improperly blaming CASSANDRA-5167, but that was the result.
                
> Peer entry drops from system table silently when bootstrapping a node with an existing
IP.
> ------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-5565
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5565
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.2.4
>            Reporter: Rick Branson
>
> It looks like CASSANDRA-5167 introduced a bit of a regression. I needed to rebuild the
data on a malfunctioning node by rebootstrapping it. I did this by cleaning the host and restarting
Cassandra. My plan was to remove the old hostID once it had successfully bootstrapped. 
> No errors were encountered, but the old host ID of the node before the wipe was completely
dropped from the peers table because they had the same IP address, and therefore the data
ranges were moved around. This resulted in a large number of CL.ONE reads coming back empty.
> There might be a better approach to this rebootstrap process, but it seems like it's
dangerous to just drop the peer from the table, especially without any kind of log message.

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