incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: Asymmetric load
Date Thu, 15 Dec 2011 14:30:02 GMT
The more physical data that lives on a node the more intensive operations
are. Especially read based ops.

Even if your ring is balanced something like a failed repair could create a
data imbalance.

>From some offline talks with you I know you node count is on smaller end
and repairs have been problematic from disk space.

Have you considered leveraging read repair? An application that sweeps
though range-scan + get would trigger read repairs. Also the 1.0 hinting
took steps to make hints stored on the coordinator and lessened the need
for anti entropy repair.

On Wednesday, December 14, 2011, Maxim Potekhin <potekhin@bnl.gov> wrote:
> What could be the reason I see unequal loads on a 3-node cluster?
> This all started happening during repairs (which again are not going
smoothly).
>
> Maxim
>
>

Mime
View raw message