Daning, 

You could
clear the hintedhandoff via jmx ( 
HintedHandOffManagerMBean.deleteHintsForEndpoint ) for that host.
 
 
Feng Qu


>________________________________
> From: Daning Wang <dan...@netseer.com>
>To: user@cassandra.apache.org 
>Sent: Wednesday, May 16, 2012 10:38 AM
>Subject: Re: Couldn't find cfId
> 
>
>Thanks Aaron! We will upgrade to 1.0.9.
>
>Just curious, you said "removing the HintedHandoff files from data/system", 
>what do the HintedHandoff files look like?
>
>Thanks,
>
>Daning
>
>
>On Wed, May 16, 2012 at 2:32 AM, aaron morton <aa...@thelastpickle.com> wrote:
>
>Looks like this https://issues.apache.org/jira/browse/CASSANDRA-3975
>>
>>
>>Fixed in the latest 1.0.9. 
>>
>>
>>Either upgrade (which is always a good idea) or purge the hints from the 
>>server. Either using JMX or stopping the node and removing the HintedHandoff 
>>files from data/system. 
>>
>>
>>In either case you should then run a nodetool repair as hints for other CF's 
>>may have been dropped. 
>>
>>
>>Cheers
>>
>>
>>
>>-----------------
>>Aaron Morton
>>Freelance Developer
>>@aaronmorton
>>http://www.thelastpickle.com 
>>
>>
>>On 16/05/2012, at 2:27 AM, Daning Wang wrote:
>>
>>We got exception "UnserializableColumnFamilyException: Couldn't find 
>>cfId=1075" in the log of one node, describe cluster showed all the nodes in 
>>same schema version. how to fix this problem? did repair but looks does not 
>>work, haven't try scrub yet.
>>>
>>>
>>>We are on v1.0.3
>>>
>>>
>>>ERROR [HintedHandoff:1631] 2012-05-15 07:13:07,877 
>>>AbstractCassandraDaemon.java (line 139) Fatal exception in thread 
>>>Thread[HintedHandoff:1631,1,main]
>>>java.lang.RuntimeException: 
>>>org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't find 
>>>cfId=1075
>>>        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.runWorker(ThreadPoolExecutor.java:1110)
>>>        at 
>>>java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>>>        at java.lang.Thread.run(Thread.java:722)
>>>Caused by: org.apache.cassandra.db.UnserializableColumnFamilyException: 
>>>Couldn't find cfId=1075
>>>        at 
>>>org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:129)
>>>        at 
>>>org.apache.cassandra.db.RowMutation$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:418)
>>> 
>>>Thanks,
>>>
>>>
>>>Daning
>>
>
>
>

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