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From Nimi Wariboko Jr <>
Subject Re: Data Loss/Missing With Cassandra
Date Mon, 10 Jun 2013 16:39:27 GMT
How can I recover that data? Can I assume they are still in the sstables? Would doing a sstable2json
then reading and reinserting be an optimal solution?

On Monday, June 10, 2013 at 9:18 AM, Tyler Hobbs wrote:

> On Sun, Jun 9, 2013 at 3:19 PM, Nimi Wariboko Jr < (>
> > If I had to do a repair after upping the RF, than that is probably what caused the
data loss. Wish I had been more careful.
> > 
> > I'm guessing the data is irrevocably lost, I didn't make any any snapshots. 
> > 
> > Would it be possible to figure out if only a certain part of the ring was effected?
That would be helpful in figuring out what data was lost.
> > 
> > I've done a full repair now, so I'm also guessing that inconsistent data is now
completely gone as well, right? 
> Cassandra doesn't remove data automatically (partially to help prevent data loss in cases
like this).  The original node will still have the full set of data unless you have run a
cleanup operation (nodetool cleanup) on it.
> -- 
> Tyler Hobbs
> DataStax (

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