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From Xiaowei Wang <xiaowei...@gmail.com>
Subject Re: running TPC-C on cassandra clusters
Date Fri, 13 May 2011 01:39:18 GMT
Oh sorry, we use cassandra-0.7.4 already. Is the version fine?

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

> https://svn.apache.org/repos/asf/cassandra/branches/cassandra-0.7
>
> On Thu, May 12, 2011 at 8:33 PM, Xiaowei Wang <xiaowei609@gmail.com>
> wrote:
> > 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
> >
> >
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>

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