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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Performance issues after upgrading to Cassandra 0.7.6-2 from Cassandra 0.6.6
Date Thu, 02 Jun 2011 23:40:45 GMT
Where is the bottleneck? See
http://spyced.blogspot.com/2010/01/linux-performance-basics.html

On Thu, Jun 2, 2011 at 11:18 AM, Nir Cohen <nir@similargroup.com> wrote:

> Hi all,
>
> Recently we have upgraded our Cassandra servers to version 0.7.6-2 from
> 0.6.6
>
> We are experiencing a severe performance issues – we must restart the
> Cassandra servers every half hour (otherwise our apps servers can't connect
> to the Cassandra servers).
>
> Each Cassandra server has 2 SSD drives (one for data and one for commit
> log),
>
> The amount of the read per second for each server is 500.
>
> We haven't experienced those issues in 0.6.6
>
>
>
> Do you have any ideas?
>
>
>
> Kind regards,
>
> -Nir
>
>
>
> [image: SG_Signature_Logo.png]
>
> *Nir Cohen*
>
> Co-Founder & CTO
>
> (+972) 54-242-8419
>
> SimilarWeb <http://www.similarweb.com/> | SimilarSites<http://www.similarsites.com/>|
> TopSite <http://www.topsite.com/>
>
>
>
>
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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