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Re: Waking up server during boot prevents NFS mounts after upgrade to etch

From: Bob Proulx <bob(at)proulx.com>
Date: Fri Jun 22 2007 - 18:02:26 EDT

Malte Forkel wrote:
> After upgrading the clients from sarge to etch, mounting NFS volumes
> does not work anymore if the server wasn't up already.

I think that should be considered a bug. Traditional behavior should have the clients block waiting for the server to come online and then continue normally after that. If you agree then please file a bug.

This might help. Are you aware of the NFS mount option 'bg'?

bg
If the first NFS mount attempt times out, retry the mount in the background. After a mount operation is backgrounded, all subsequent mounts on the same NFS server will be backgrounded immediately, without first attempting the mount. A missing mount point is treated as a timeout, to allow for nested NFS mounts.

This is a traditional method of breaking circular dependencies. But it might help as a workaround to the behavior that you are reporting.

> It takes the server about 1 minute to boot. If the server is up before
> the client boots, NFS mounts work fine.

Lots of things changed. I did not try to recreate your bad behavior but it reads like a bug to me.

> With or without asynchronous mounting. So, may be I have some sort
> of a timing problem?

Do you need help?

Using sync versus async is completely different and unrelated. That has to do with the protocol used after the clients have mounted.

Bob

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Received on Fri Jun 22 18:02:56 2007

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