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Date: Mon, 9 Jul 2012 16:23:35 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-4195) error in log when upgrading
 multi-node cluster to 1.1
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    [ https://issues.apache.org/jira/browse/CASSANDRA-4195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13409607#comment-13409607 ] 

Jonathan Ellis commented on CASSANDRA-4195:
-------------------------------------------

We *need* to support read/write ops in a mixed cluster.  We don't need to support schema changes.
                
> error in log when upgrading multi-node cluster to 1.1
> -----------------------------------------------------
>
>                 Key: CASSANDRA-4195
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4195
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.0
>         Environment: ccm, dtest. Ubuntu
>            Reporter: Tyler Patterson
>            Assignee: Pavel Yaskevich
>
> I upgraded a cluster from 1.0.9 to 1.1.0. The following message shows up in the logs for all but the first node.
> {code}
> ERROR [GossipStage:1] 2012-04-30 07:37:06,986 AbstractCassandraDaemon.java (line 139) Fatal exception in thread Thread[GossipStage:1,5,main]
> java.lang.UnsupportedOperationException: Not a time-based UUID                  
>     at java.util.UUID.timestamp(UUID.java:331)                                  
>     at org.apache.cassandra.service.MigrationManager.updateHighestKnown(MigrationManager.java:121)
>     at org.apache.cassandra.service.MigrationManager.rectify(MigrationManager.java:99)
>     at org.apache.cassandra.service.MigrationManager.onAlive(MigrationManager.java:83)
>     at org.apache.cassandra.gms.Gossiper.markAlive(Gossiper.java:806)           
>     at org.apache.cassandra.gms.Gossiper.handleMajorStateChange(Gossiper.java:849)
>     at org.apache.cassandra.gms.Gossiper.applyStateLocally(Gossiper.java:908)   
>     at org.apache.cassandra.gms.GossipDigestAck2VerbHandler.doVerb(GossipDigestAck2VerbHandler.java:62)
>     at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:59)
>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>     at java.lang.Thread.run(Thread.java:679)
> {code}
> this dtest demonstrates the issue. It was added to the cassandra-dtest repository as upgrade_to_11_test:
> {code}
> from dtest import Tester, debug 
> from tools import * 
>  
> class TestUpgradeTo1_1(Tester): 
>  
>     def upgrade_test(self): 
>         self.num_rows = 0 
>         cluster = self.cluster 
>  
>         # Forcing cluster version on purpose 
>         cluster.set_cassandra_dir(cassandra_version='1.0.9') 
>  
>         cluster.populate(3).start() 
>         time.sleep(1) 
>  
>         for node in cluster.nodelist():     
>             node.flush() 
>             time.sleep(.5) 
>             node.stop(wait_other_notice=True) 
>             node.set_cassandra_dir(cassandra_version='1.1.0') 
>             node.start(wait_other_notice=True) 
>             time.sleep(.5)
> {code}

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