Cannot open pipe: /bin/ping

[Carroll, Jim P [Contractor]]

I don't have any canned answers for you, but if you're running Nagios on a
Linux box, check these links:

http://linuxperf.nl.linux.org/
http://www.tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/gen
-optim.html
http://www.math.uwaterloo.ca/mfcf/internal/what/education/lisa97/S1.html

jc

> -----Original Message-----
> From: Brian Wilson [mailto:wilson at unity.ncsu.edu]
> Sent: Monday, November 25, 2002 8:57 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] Cannot open pipe: /bin/ping
> 
> 
> 
> We experienced a major outage today (>700 devices) and nagios 
> seemed to
> not be able to keep up with the notifications.  We had about 
> 70 services
> with UNKNOWN status with the message "Cannot open pipe:  
> /bin/ping".  I'm
> assuming this is a ulimit problem because RAM, swap and CPU 
> seem to be ok.
> So here are the limits currently imposed for the nagios user:
> 
> $ ulimit -a
> core file size        (blocks, -c) 0
> data seg size         (kbytes, -d) unlimited
> file size             (blocks, -f) unlimited
> max locked memory     (kbytes, -l) unlimited
> max memory size       (kbytes, -m) unlimited
> open files                    (-n) 1024
> pipe size          (512 bytes, -p) 8
> stack size            (kbytes, -s) 8192
> cpu time             (seconds, -t) unlimited
> max user processes            (-u) 256
> virtual memory        (kbytes, -v) unlimited
> 
> 
> Does anyone have any recommendations for changing any of the above.
> Nagios is the only thing running on our machines, so it 
> should be able to
> have whatever resources it wants.
> 
> Anyone have a good way of changing these limits for the 
> nagios user?  I'm
> assuming this would have to be done in the startup script.
> 
> Thanks in advance,
> Brian
> 
> --
> Brian Wilson  <wilson at ncsu.edu>      Network Analyst
> Communication Technologies, ATD      W: 919.513.3472
> North Carolina State University      www.ncstate.net
> 
> 
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