[Sheepdog] Is Sheepdog ready for deployment ?

[MORITA Kazutaka]

Hi,

On Sat, Apr 17, 2010 at 11:35 PM, Kiran Patil <kirantpatil at gmail.com> wrote:
> Hello list,
>
> I have following questions to be answered. Please help me to clarify the
> following questions.
>
> a) Is Sheepdog ready for deployment ?

No, not yet. I think we have implemented the essential part of
Sheepdog features, but testing is not enough yet. Sheepdog is buggy,
especially when new nodes join the Sheepdog and existing nodes leave.

> b) If not how long do we need to wait ?

We plan to stabilize it until the early next month, and after that, we
will send the patch to the qemu-devel mailing list. You should wait
until at least that.

> c) What kind of contribution do you look for, apart from Development, please
> mention them clearly in TODO list ?

What we expect other than development are following:

1) Testing

We want to fix as many bugs. Please test Sheepdog, and send bug
reports to this mailinglist.

2) Documentation

We want to provide more detailed documents about what Sheepdog can
provide and not, how to install and setup corosync and Sheepdog, how
to help sheepdog development, and other important points to use/develop
Sheepdog.

3) Performance evaluation

Though we did a simple performance evaluation (the result is in
http://www.osrg.net/sheepdog/_static/lca2010_miniconf.pdf), it is not
enough at all. We want to know detailed read/write performance and
scalability of Sheepdog.

> d) Does project has bug tracking tool, to raise bugs ?

No. Please send them to this mailing list.

> e) What would be the optimal test setup to test the Sheepdog ?

We assume that Sheedog runs on the homogeneous environment,
so it is better to setup with same specification machines.

> f) If node fails how will we come to know about it  ?

We can know from the output of `shepherd info -t dog'.

> g) Already deployed Customers scenarios, if any ? (Note: We need to add a
> page/section in website about deployed case studies)

No. If Sheepdog is deployed, we will add such a web page soon.

> h) Is there any plan to add deduplication support ?
>
No, there isn't in the short term. It is difficult from the view
points of performance. But in future, we may plan it if required.


Thanks,

Kazutaka Morita