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From Jianing Hu <jian...@gmail.com>
Subject Re: cassandra 0.6.1 read returns wrong data?
Date Mon, 02 Aug 2010 18:15:37 GMT
Does that bug cause *random* data read errors? Looks like it may fail
in a deterministic way, but I'm not familiar with the code base so
please correct me if I'm wrong.

On Fri, Jul 30, 2010 at 8:49 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
> 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 <jianing@gmail.com> 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
> http://riptano.com
>

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