Occasional unknown status messages from a particular server

[Kaplan, Andrew H.]

Hi there --

We are running Nagios 3.1.2, and one of our monitored servers, running NRPE
client 2.0, is occasionally
sending back unknown status messages to the server. An example of this is shown
below:

	
UNKNOWN	 11-17-2009 13:10:15	 0d 0h 1m 54s	 2/3	 
CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error
messages. 	 
	
UNKNOWN	 11-17-2009 13:10:15	 0d 0h 1m 54s	 2/3	 NRPE: Call to fork()
failed 	 
		This service is flapping between states
<http://romonitor/nagios/cgi-bin/extinfo.cgi?type=2&host=space&service=Free+Spac
e+%2Fdiskarray%2Fstripe8%2Fproton_data2+-+Clinical+Research#comments> 	
UNKNOWN	 11-17-2009 13:10:15	 0d 0h 0m 54s	 3/3	 NRPE: Unable to read
output 	 
		This service is flapping between states
<http://romonitor/nagios/cgi-bin/extinfo.cgi?type=2&host=space&service=Free+Spac
e+%2Fdiskarray%2Fstripe9%2Fproton_data3+-+Medullo> 	
UNKNOWN	 11-17-2009 13:06:15	 0d 0h 4m 54s	 3/3	 NRPE: Call to fork()
failed 	 
	
UNKNOWN	 11-17-2009 13:10:15	 0d 0h 1m 54s	 2/3	 
CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error
messages. 

The server being monitored is an HP-UX 11.00 system running on a PA-RISC
chipset. I have checked the
log files of the remote host, but there is nothing to indicate there being a
problem. I have also run the 
check commands manually on the remote host, and all have returned known output. 

Has anyone seen this, know what it is, and what steps can be done to stop it
from occurring? Thanks.





 	



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