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From "nivance (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-5450) cluster : Host ID collision
Date Thu, 11 Apr 2013 02:16:14 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

nivance resolved CASSANDRA-5450.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 1.2.0

config is wrong
                
> cluster : Host ID collision
> ---------------------------
>
>                 Key: CASSANDRA-5450
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5450
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Config
>    Affects Versions: 1.2.0
>         Environment: centos-6-x86_64, jdk1.6.0_30, cassandra1.2.0
> 4 nodes, 2 datacenter, 2 nodes for each datacenter
>            Reporter: nivance
>              Labels: cluster
>             Fix For: 1.2.0
>
>   Original Estimate: 1m
>  Remaining Estimate: 1m
>
> I follow the guide "Initializing a multiple node cluster" in url:
> http://www.datastax.com/docs/1.2/initialize/cluster_init
> the exception occurs below when start the second node:
> java.lang.RuntimeException: Host ID collision between active endpoint /192.168.0.193
and /192.168.0.194 (id=4ebdbeea-2712-475b-a3e3-64b6e6b099a9)
> 	at org.apache.cassandra.locator.TokenMetadata.updateHostId(TokenMetadata.java:227)
> 	at org.apache.cassandra.service.StorageService.handleStateNormal(StorageService.java:1296)
> 	at org.apache.cassandra.service.StorageService.onChange(StorageService.java:1157)
> 	at org.apache.cassandra.service.StorageService.onJoin(StorageService.java:1895)
> 	at org.apache.cassandra.gms.Gossiper.handleMajorStateChange(Gossiper.java:805)
> 	at org.apache.cassandra.gms.Gossiper.applyStateLocally(Gossiper.java:883)
> 	at org.apache.cassandra.gms.GossipDigestAck2VerbHandler.doVerb(GossipDigestAck2VerbHandler.java:43)
> 	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:56)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:662)
> I track the source code. the function "getHostId" in class org.apache.cassandra.gms.Gossiper,
diff endpoint it returns the same value,like:
> /192.168.0.194	4ebdbeea-2712-475b-a3e3-64b6e6b099a9
> /192.168.0.88	c375010a-c464-40c9-a7db-61de319a4cba
> /192.168.3.21	4ebdbeea-2712-475b-a3e3-64b6e6b099a9
> /192.168.0.193	4ebdbeea-2712-475b-a3e3-64b6e6b099a9
> so, the exception occurs.
> Is it a bug or is my Configuration wrong?

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