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RE: [Linux-cluster] GFS Node Limit?


All sorted now...I had no idea about this bug. Is it documented anywhere
I had all my service servers named services-01, services-02. Renamed
them to serv-01 ... And it worked!
Thanks for all your help!



Richard Mayhew
Unix Specialist

-----Original Message-----
From: Adam Manthei [mailto:amanthei redhat com] 
Sent: 19 August 2004 01:29 AM
To: Discussion of clustering software components including GFS
Subject: Re: [Linux-cluster] GFS Node Limit?

On Wed, Aug 18, 2004 at 11:06:28PM +0200, Richard Mayhew wrote:
> I have increased the number of journals on each FS from the 8 
> previously discussed to 16. At present the max number of servers that 
> I intend on using will be 10, leaving 6 journals open for expansion. 
> When trying to mount the 6th server, I end up with the same problem. 
> The mount hangs until I remove a mount from another system before the 
> 6th system is able to complete the GFS mount.
> After adding on full verbosity on the gulm lock server I still can't 
> see anything of interest. Dmesg offers no clue either. The only 
> message I'm seeing is the following : "GFS Kernel Interface" is logged
out. fd:10"
> etc.
> After searching the net, the only advice I can find is to increase the

> number of journals to at least the number of nodes. This I have done 
> with no success....
> Any other ideas?

Gulm can only use 5 nodes in the servers list in
cluster.ccs/cluster/lock_gulmd/servers.  This could be why you are
having difficulties.  Try trimming the list and see if that yields
better results.

You may also want to make sure that your node names are uniquely
identifiable by their first 8 characters (this was a bug in version
6.0.0-1.2 of the RPMs, but since you didn't post the version of the code
you are using, I can only offer this as a suggestion ;)

There would be failure messages to the console stating that you didn't
have enough journals if that was the problem.  

good luck
Adam Manthei

Linux-cluster mailing list
Linux-cluster redhat com

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