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Re: Jepsen testing


Hi Alex,

Yes, Jepsen tests of Scalar DB run as a part of the daily testing.
Each of them runs for an hour every day.

However, some tests fail due to a client thread crash.
It seems to be unrelated to Cassandra and Scalar DB.
I think that my implementation might have a problem.
Now, I'm investigating that issue.

That would be a great idea if our work will be included in the regular
testing drill.

Thanks,
Yuji

2018年11月9日(金) 17:27 Oleksandr Shulgin <oleksandr.shulgin@xxxxxxxxxx>:

> On Thu, Nov 8, 2018 at 10:42 PM Yuji Ito <yito@xxxxxxxxxxxxxxxxx> wrote:
>
> >
> > We are working on Jepsen testing for Cassandra.
> > https://github.com/scalar-labs/jepsen/tree/cassandra/cassandra
> >
> > As you may know, Jepsen is a framework for distributed systems
> > verification.
> > It can inject network failure and so on and check data consistency.
> > https://github.com/jepsen-io/jepsen
> >
> > Our tests are based on riptano's great work.
> > https://github.com/riptano/jepsen/tree/cassandra/cassandra
> >
> > I refined it for the latest Jepsen and removed some tests.
> > Next, I'll fix clock-drift tests.
> >
> > I would like to get your feedback.
> >
>
> Cool stuff!  Do you have jepsen tests as part of regular testing in
> scalardb?  How long does it take to run all of them on average?
>
> I wonder if Apache Cassandra would be willing to include this as part of
> regular testing drill as well.
>
> Cheers,
> --
> Alex
>