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From "Jignesh Dhruv (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-1291) nodetool ring prints incorrect IP address
Date Wed, 04 Aug 2010 16:31:16 GMT


Jignesh Dhruv commented on CASSANDRA-1291:

I believe it does.

I did put some debugging statements in calculateNaturalEndpoints in RackAwareStrategy before
and that is when I realized that the problem is in the way endpoints are stored.

So here is my usecase:
I started up a new cluster, no data has been inserted yet. I create the schema with RF=3 on
one node which gets replicated on all other nodes. Now I run the nodetool ring command and
I see incorrect/duplicate ips in the ring command.

Changing HashSet back to LinkedHashSet does solve the problem.

> nodetool ring prints incorrect IP address
> -----------------------------------------
>                 Key: CASSANDRA-1291
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7 beta 1
>            Reporter: Brandon Williams
>            Assignee: Brandon Williams
>             Fix For: 0.7 beta 1
>         Attachments: 1291.txt
> Nodetool's ring output on trunk seems to duplicate an ipaddress instead of printing them
> To reproduce: spin up a 3 node cluster and create a keyspace, examine nodetool ring.
 One ip address will show up twice, though the tokens are correctly displayed for the three
> This is a cosmetic error, if you call getLiveNodes via JMX you can see all three IPs.

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