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From Xiaowei Wang <xiaowei...@gmail.com>
Subject Re: running TPC-C on cassandra clusters
Date Fri, 13 May 2011 01:33:16 GMT
Thanks Jonathan, but can you provide some links about 0.7 svn branch?

2011/5/12 Jonathan Ellis <jbellis@gmail.com>

> I'd recommend trying the 0.7 svn branch (soon to be voted on as 0.7.6)
>
> On Thu, May 12, 2011 at 3:09 PM, Xiaowei Wang <xiaowei609@gmail.com>
> wrote:
> > Hi all,
> >
> > My partner and I currently using cassandra cluster to run TPC-C. We first
> > use 2 ec2 nodes to load 20 warehouses. One(client node)  has 8 cores,
> the
> > other(worker node) has 4 cores. During the loading time, either the
> client
> > node or the worker node will "down"(cannot be detected) randomly and then
> > "up" again in a short time. If the two nodes both down, we failed in
> > loading. If only one of them down, we can continue to load data.
> >
> > The problem is if we use multiple threads(we write multiprocess code),
> say 4
> > clients threads, some of them might be stop at the point one of the nodes
> > first down, and the dead threads will never come back.... This will not
> only
> > enlarge our loading time, but also effect the amount of data we can load.
> >
> > So we need to figure out why the nodes continue to be up and down and fix
> > this problem.
> >
> > Thanks for any help!
> >
> > Best,
> > Xiaowei
> >
> >
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>

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