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https://issues.apache.org/jira/browse/CASSANDRA-3975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218348#comment-13218348
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Chris Herron commented on CASSANDRA-3975:
-----------------------------------------

Stack trace from 1.0.7:

 INFO [HintedHandoff:854] 2012-02-27 22:39:51,183 
org.apache.cassandra.db.HintedHandOffManager Started hinted handoff for token: 
Token(bytes[7f]) with IP: /XX.XX.XX.XXX
ERROR [HintedHandoff:854] 2012-02-27 22:39:51,186 
org.apache.cassandra.service.AbstractCassandraDaemon Fatal exception in thread 
Thread[HintedHandoff:854,1,main]
java.lang.RuntimeException: 
org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't find 
cfId=2391
        at 
org.apache.cassandra.utils.FBUtilities.unchecked(FBUtilities.java:689)
        at 
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
        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)
Caused by: org.apache.cassandra.db.UnserializableColumnFamilyException: 
Couldn't find cfId=2391
        at 
org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:129)
        at 
org.apache.cassandra.db.RowMutation$RowMutationSerializer.deserialize(RowMutation.java:401)
        at 
org.apache.cassandra.db.RowMutation$RowMutationSerializer.deserialize(RowMutation.java:409)
        at 
org.apache.cassandra.db.HintedHandOffManager.deliverHintsToEndpointInternal(HintedHandOffManager.java:344)
        at 
org.apache.cassandra.db.HintedHandOffManager.deliverHintsToEndpoint(HintedHandOffManager.java:248)
        at 
org.apache.cassandra.db.HintedHandOffManager.access$200(HintedHandOffManager.java:84)
        at 
org.apache.cassandra.db.HintedHandOffManager$3.runMayThrow(HintedHandOffManager.java:416)
        at 
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
                
> Hints Should Be Dropped When Missing CFid Implies Deleted ColumnFamily
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-3975
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3975
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.7
>            Reporter: Chris Herron
>             Fix For: 1.0.9, 1.1.0
>
>
> If hints have accumulated for a CF that has been deleted, Hinted Handoff 
> repeatedly fails until manual intervention removes those hints. For 1.0.7, 
> UnserializableColumnFamilyException is thrown only when a CFid is unknown on 
> the sending node. As discussed on #cassandra-dev, if the schema is in 
> agreement, the affected hint(s) should be deleted to avoid indefinite repeat 
> failures.

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