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https://issues.apache.org/jira/browse/CASSANDRA-2768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis reassigned CASSANDRA-2768:
-----------------------------------------
Assignee: Sylvain Lebresne
> AntiEntropyService excluding nodes that are on version 0.7 or sooner
> --------------------------------------------------------------------
>
> Key: CASSANDRA-2768
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2768
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.8.0
> Environment: 4 node environment --
> Originally 0.7.6-2 with a Keyspace defined with RF=3
> Upgraded all nodes ( 1 at a time ) to version 0.8.0: For each node, the node
> was shut down, new version was turned on, using the existing data files /
> directories and a nodetool repair was run.
> Reporter: Sasha Dolgy
> Assignee: Sylvain Lebresne
>
> When I run nodetool repair on any of the nodes, the
> /var/log/cassandra/system.log reports errors similar to:
> INFO [manual-repair-1c6b33bc-ef14-4ec8-94f6-f1464ec8bdec] 2011-06-13
> 21:28:39,877 AntiEntropyService.java (line 177) Excluding /10.128.34.18 from
> repair because it is on version 0.7 or sooner. You should consider updating
> this node before running repair again.
> ERROR [manual-repair-1c6b33bc-ef14-4ec8-94f6-f1464ec8bdec] 2011-06-13
> 21:28:39,877 AbstractCassandraDaemon.java (line 113) Fatal exception in
> thread Thread[manual-repair-1c6b33bc-ef14-4ec8-94f6-f1464ec8bdec,5,RMI
> Runtime]
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$KeyIterator.next(HashMap.java:828)
> at
> org.apache.cassandra.service.AntiEntropyService.getNeighbors(AntiEntropyService.java:173)
> at
> org.apache.cassandra.service.AntiEntropyService$RepairSession.run(AntiEntropyService.java:776)
> The INFO message and subsequent ERROR message are logged for 2 nodes .. I
> suspect that this is because RF=3.
> nodetool ring shows that all nodes are up.
> Client connections (read / write) are not having issues..
> nodetool version on all nodes shows that each node is 0.8.0
> At suggestion of some contributors, I have restarted each node and tried to
> run a nodetool repair again ... the result is the same with the messages
> being logged.
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