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From aaron morton <aa...@thelastpickle.com>
Subject Re: How to find CF from cfId
Date Sat, 24 Mar 2012 06:26:03 GMT
cfid is internal, not sure if it is exposed anywhere. You may see it in DEBUG level logs at
start up. 

> 1744830464
Is a very high number, it starts at 1000 and increments by one. Something seems odd. 

The error you are seeing may be a symptom of a diverged schema. Check for schema agreement
using describe cluster in the cassandra-cli. 

Cheers
 
-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 23/03/2012, at 9:15 AM, Daning Wang wrote:

> Hi,
> 
> How to find a column family from a cfId? I got a bunch of exception, want to find out
which CF has problem. 
> 
> java.io.IOError: org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't
find cfId=1744830464
>         at org.apache.cassandra.service.AbstractRowResolver.preprocess(AbstractRowResolver.java:71)
>         at org.apache.cassandra.service.AsyncRepairCallback.response(AsyncRepairCallback.java:47)
>         at org.apache.cassandra.net.ResponseVerbHandler.doVerb(ResponseVerbHandler.java:49)
>         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:722)
> Caused by: org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't find
cfId=1744830464
>         at org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:123)
>         at org.apache.cassandra.db.RowSerializer.deserialize(Row.java:69)
>         at org.apache.cassandra.db.ReadResponseSerializer.deserialize(ReadResponse.java:113)
>         at org.apache.cassandra.db.ReadResponseSerializer.deserialize(ReadResponse.java:82)
>         at org.apache.cassandra.service.AbstractRowResolver.preprocess(AbstractRowResolver.java:64)
> 
> 
> Daning


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