[Dxspider-support] Cluster hangs

[Bob Nielsen]

On Sat, Mar 05, 2005 at 06:25:32PM -0600, Jimmy Turner wrote:
> I had the same thing happen to our cluster, but I would get a message
> like this  "cannot fork, try again" every time I tried to issue a
> command.  I checked the ps ax command and found lots of stuff called
> "hotplug" running, about 60-100 instances.  I also found some alerts in
> my /var/log/secure.log files pertaining to invalid SSH logins.  I
> figured that this was an omen telling me to shut down SSH until I really
> need it.  Since I have disabled SSH on the box (it's local anyway) I
> have not had any other lock ups.  
> I hope this helps,
> 73  de  K5JTJ
> sysop K5PLD-2 Spider DXCluster.

Hotplug is a program which recognizes when USB or Cardplug devices are
connected or disconnected and loads the proper modules and creates the
necessary device nodes.  It shouldn't have any direct relationship to dx
spider.  I doubt that ssh would be involved either (I close port 22 in
my firewall unless I know I will need to temporarily have ssh access
from another site).

73, Bob N7XY