Another question on this topic.

Would forcing the table to relevel help this situation?  I believe the process 
to do this on 1.1.X would be to stop cassandra, remove .json file, and restart 
cassandra.  Is this true?

Any help would be appreciated,
Thanks,
-Mike

On Sep 12, 2013, at 6:47 PM, Michael Theroux wrote:

> Hello,
> 
> We've been undergoing a migration on Cassandra 1.1.9 where we are combining 
> two column families.  We are incrementally moving data from one column family 
> into another, where the columns in a row in the source column family are 
> being appended to columns in a row in the target column family.  Both column 
> families are using leveled compaction, and both column families have over 100 
> million rows.  
> 
> However, our bloom filters on the target column family grow dramatically 
> (less than double) after converting less than 1/4 of the data.  I assume this 
> is because new changes are not being compacted with older changes, although I 
> thought leveled compaction would mitigate this for me. Any advice on what we 
> can do to control our bloom filter growth during this migration?
> 
> Appreciate the help,
> Thanks,
> -Mike

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