[Linux-cluster] GFS hangs, nodes die

Marc Grimme grimme at atix.de
Tue Aug 21 08:09:38 UTC 2007

On Tuesday 21 August 2007 09:52:32 Sebastian Walter wrote:
> Hi,
> Marc Grimme wrote:
> > Do you also see some messages on the console of the nodes. And the
> > gfs_tool
> > counters would help before that problem occures. So let it run sometimes
> > before to see if locks increase.
> > What kind of stress tests are you doing? I bet searching the whole
> > filesystem. What makes me wonder is that the gfs_tool glock_purge does
> > not work whereas it worked for me with exactly the same problems. Did you
> > set it _AFTER_ the fs was mounted?
Sorry I mean after is right and before not ;-( .
And are you using the latest version of CS/GFS?
Do you have a lot of memory in your machines 16G or more?
> That makes me optimistic. I set it after the volume was mounted, so I
> will give it another try setting it before mounting it. Then I will also
> mail myself the output of the counters every 10 minuts. Let's see...
I would be interested in the counters.
Also add the process list in order to see if how much CPU-Time gfs_scand 
ps axwwww | sort -k4 -n | tail -10

Have fun Marc.
> ...with best thanks
> Sebastian
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Gruss / Regards,

Marc Grimme
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