[Linux-cluster] GFS + DRBD Problems

[Gordan Bobic]

Marc Grimme wrote:

> As I cannot help you too much with DBRB problems here some infos to help you 
> debugging them at least ;-) .
> 
> Regarding OSR being stuck (manual fencing):
> You should try using the fenceacksv. As far as I am informed of your 
> configuration it also is configured:
[...]
>                               <fenceackserver user    = "root"
>                                               passwd  = "password"
>                               />
[...]
> Now you could do a telnet on the hung node on port 12242 login and should 
> automatically see, if it is in manual fencing state or not.

Easier said than done. My cluster IP is on a separate subnet that 
nothing else is plugged into, and I suspect the fenceackserver is only 
listening on that interface (it doesn't seem to respond on the other 
interfaces). I'll see if I can get a laptop on it and see what it says...

> If you also install comoonics-fenceacksv-plugins-py you will be able to 
> trigger sysrqs via the fenceacksv.
> 
> Hope that helps with debugging.

Thanks, I appreciate it. :-)

Gordan