Another question on a same note would be what would be the fastest way to do 
repairs of size 10TB cluster ? Full repairs are taking days. So among repair 
parallel or repair sub range which is faster in the case of say adding a new 
node to the cluster?

Sent from my iPhone

> On Oct 19, 2016, at 9:30 AM, Sean Bridges <sean.brid...@globalrelay.net> 
> wrote:
> 
> Hey,
> 
> We are upgrading from cassandra 2.1 to cassandra 2.2.  
> 
> With cassandra 2.1 we would periodically repair all nodes, using the -pr 
> flag.  
> 
> With cassandra 2.2, the same repair takes a very long time, as cassandra does 
> an anti compaction after the repair.  This anti compaction causes most (all?) 
> the sstables to be rewritten.  Is there a way to do full repairs without 
> continually anti compacting?  If we do a full repair on each node with the 
> -pr flag, will subsequent full repairs also force anti compacting most (all?) 
> sstables?  
> 
> Thanks,
> 
> Sean

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