Thanks everybody. This your advice will be carefully considered in our
decision making.
On Fri, Jun 4, 2010 at 1:46 AM, Ben Standefer wrote:
> Mike, yep, there are a lot of benchmarks proving it (plus it just makes
> sense)
>
> http://stu.mp/2009/12/disk-io-and-throughput-benchmarks-on-amazons-e
Mike, yep, there are a lot of benchmarks proving it (plus it just makes sense)
http://stu.mp/2009/12/disk-io-and-throughput-benchmarks-on-amazons-ec2.html
http://www.mysqlperformanceblog.com/2009/08/06/ec2ebs-single-and-raid-volumes-io-bencmark/
http://orion.heroku.com/past/2009/7/29/io_performanc
Ben,
thanks for that, we may try that. I did find an AWS forum tidbit from
two years ago:
"4 ephemeral stores striped together can give significantly higher
throughput for sequential writes than EBS."
http://developer.amazonwebservices.com/connect/thread.jspa?messageID=125197𞤍
-Mike
On Thu, J
The commit log and data directory are on the same mounted directory
structure (the 2 RAID 0 striped ephemeral disks) rather than using 1
of the ephemeral disks for the data and 1 of the ephemeral disks for
the data directory. While it's usually advised that for disk
utilization reasons you keep th
Ben,
do you just keep the commit log on the ephemeral drive? Or data and
commit? (I was confused by your reference to XFS and snapshots -- I
assume you keep data on the XFS drive)
-Mike
On Thu, Jun 3, 2010 at 2:29 PM, Ben Standefer wrote:
> We're using Cassandra on AWS at SimpleGeo. We softwa
We're using Cassandra on AWS at SimpleGeo. We software RAID 0 stripe
the ephemeral drives to achieve better I/O and have machines in
multiple Availability Zones with a custom EndPointSnitch that
replicates the data between AZs for high availability (to be
open-sourced/contributed at some point).
On Thu, 2010-06-03 at 11:29 +0300, David Boxenhorn wrote:
> We want to try out Cassandra in the cloud. Any recommendations?
> Comments?
>
> Should we use Amazon? Rackspace? Something else?
I personally haven't used Cassandra on EC2, but others have reported
significantly better disk IO, (and hen
> We want to try out Cassandra in the cloud. Any recommendations? Comments?
> Should we use Amazon? Rackspace? Something else?
I'm using it on Amazon with mostly success. I'd recommend increasing Phi from 8
to 10, use the 4-core/15gb instances to start, and if you plan to be really
heavy on rea
