[shepdog-ng] About hot upgrade

Valerio Pachera

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Dec 12, 2016, 4:52:48 AM12/12/16

to sheepdog-ng

Hi all, I have a couple of questions.

I'm running Sheepdog daemon version 0.9.0_327_gdc0496e.

Can I use live upgrade? (one node per time).

Or I need to:
- stop the cluster
- upgrade all sheeps

Then I can use hot upgrade since the future releases?

Thank you.

Liu Yuan

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Dec 15, 2016, 3:47:35 AM12/15/16

to Valerio Pachera, sheepdog-ng

On Mon, Dec 12, 2016 at 10:52:47AM +0100, Valerio Pachera wrote:
> Hi all, I have a couple of questions.
> I'm running Sheepdog daemon version 0.9.0_327_gdc0496e.
> Can I use live upgrade? (one node per time).
>
> Or I need to:
> - stop the cluster

better use dog cluster info -v to make sure block event is 0 before upgrade.

> - upgrade all sheeps
> Then I can use hot upgrade since the future releases?

Yes, you can, that is why we introduce rolling update -- won't cause any cluster
recovery and influence the quality of the service.

Thanks,
Yuan

Liu Yuan

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Dec 15, 2016, 3:51:35 AM12/15/16

to Valerio Pachera, sheepdog-ng

I meant you can upgrade the cluster one by one on the fly. Stopping the cluster
is NOT necessary.

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