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From Jonathan Ellis <>
Subject Re: cassandra 0.6.1 read returns wrong data?
Date Sat, 31 Jul 2010 03:49:47 GMT
This is probably a bug fixed in 0.6.2:

 * fix size of row in spanned index entries (CASSANDRA-1056)

You should upgrade to 0.6.4 (due out this weekend).

On Wed, Jul 28, 2010 at 7:47 PM, Jianing Hu <> wrote:
> We recently migrated part of our MySQL database to a 3-node Cassandra
> cluster with a replication factor of 3. Couple of days ago we noticed
> that Cassandra sometimes returns the wrong data. Not corrupted data,
> but data for a different key than the one being asked for. This error
> appears to be random and intermittent, and happens for maybe every 10K
> reads. I'm working on a test suite that can reproduce this. Meanwhile
> just wanted to ask if anyone has seen this problem before? I've tried
> consistency levels of both QUORUM and ONE, and see the issue with
> both.
> Thanks,
> - Jianing

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support

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