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From "Marco Matarazzo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5329) Repair -pr with vnodes incompatibilty
Date Mon, 11 Mar 2013 14:29:12 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13598853#comment-13598853
] 

Marco Matarazzo commented on CASSANDRA-5329:
--------------------------------------------

I second this, we see exactly the same behaviour.
                
> Repair -pr with vnodes incompatibilty
> -------------------------------------
>
>                 Key: CASSANDRA-5329
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5329
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.2.2
>            Reporter: julien campan
>
> Hi,
> I have a cluster on 1.2.2 .
> This cluster is composed of 16 nodes in two datacenters (8 and 8) with an RF 3 :3.
>  I used virtual nodes, 256 on each node.
> When I do “repair –pr" on a node, I can see that  it’s doing repair only on the
first vnode :
> [2013-03-07 14:42:56,922] Starting repair command #7, repairing 1 ranges for keyspace
pns_fr
> [2013-03-07 14:42:57,835] Repair session eb38dfa0-872c-11e2-af2d-f36fae36bab1 for range
(-9064588501660224828,-9063047458265491057] finished
> [2013-03-07 14:42:57,835] Repair command #7 finished
> [2013-03-07 14:42:57,852] Starting repair command #8, repairing 1 ranges for keyspace
hbxtest
> [2013-03-07 14:42:59,307] Repair session ebc6c7c0-872c-11e2-af2d-f36fae36bab1 for range
(-9064588501660224828,-9063047458265491057] finished
> So if  I understand well, when I do a "repair –pr"  on each node, I will repair only
the first vnode on each node. (16 token ranges on 4096 ranges). 
> This method doesn’t guarantee the consistency of the dataset.
> It seems to me that the "repair –pr" is not compatible with vnode cluster.  

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