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From "Ryan McGuire (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6615) Changing the IP of a node on a live cluster leaves gossip infos and throws Exceptions
Date Wed, 30 Apr 2014 18:04:32 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryan McGuire updated CASSANDRA-6615:
------------------------------------

    Labels: qa-resolved  (was: )

> Changing the IP of a node on a live cluster leaves gossip infos and throws Exceptions
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6615
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6615
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Fabien Rousseau
>            Assignee: Brandon Williams
>              Labels: qa-resolved
>             Fix For: 1.2.14, 2.0.5
>
>         Attachments: 6615.txt
>
>
> Following this procedure : https://engineering.eventbrite.com/changing-the-ip-address-of-a-cassandra-node-with-auto_bootstrapfalse/
 to change the IP of a node, we encountered an issue :
>  - logs contains: "java.lang.RuntimeException: Host ID collision between active endpoint
/127.0.0.5 and /127.0.0.3"
>  - logs also indicate that the old IP is being removed of the cluster (FatClient timeout),
then added again...
>  - nodetool gossipinfo still list old IP (even a few hours after...)
>  - the old IP is still seen as "UP" in the cluster... (according to the logs...)
> Below is a small shell script which allows to reproduce the scenario...
> {noformat}
> #! /bin/bash
> CLUSTER=$1
> ccm create $CLUSTER --cassandra-dir=.
> ccm populate -n 2
> ccm start
> ccm add node3 -i 127.0.0.3 -j 7300 -b
> ccm node3 start
> ccm node3 ring
> ccm node3 stop
> sed -i 's/127.0.0.3/127.0.0.5/g' ~/.ccm/$CLUSTER/node3/node.conf 
> sed -i 's/127.0.0.3/127.0.0.5/g' ~/.ccm/$CLUSTER/node3/conf/cassandra.yaml
> ccm node3 start
> sleep 3
> nodetool --host 127.0.0.5 --port 7300 gossipinfo
> {noformat}



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