Warning while starting Nagios (Changed for Sync to Bulk(NPCD) mode of PNP operation)

[Assaf Flatto]

Jatin Davey wrote:
> Hi All
>
> I am using Nagios with PNP4nagios as a graphing addon. I was using the 
> synchronous mode of PNP operation where in for every data collected the 
> process_perfdata is run and the data gets stored in the database. My 
> polling was such that for few services like CPU and bandwidth usage the 
> frequency of polling was done every 20 secs. This added a lot of load on 
> my nagios server box. Its CPU was constantly working at 70-75% and hence 
> i decided to switch over to Bulk with NPCD mode and followed all the 
> instructions given in the PNP4 site. Everything went fine and nagios 
> also verified the configurations correctly. But while starting the 
> nagios service i got the following error message as shown below.
>
> Can someone tell me what was the reason for it and is there anything 
> that i should be concerned. Please let me know.
>
> Note: After starting the nagios server again i am seeing the data being 
> collected and shown in the graphs. No issues in this regard. Now the 
> load on my nagios server is significantly reduced. I could see that the 
> CPU usage has come down from 70-75% to 40%.
>
> Running pre-flight check on configuration data...
>
> Checking services...
>          Checked 199 services.
> Checking hosts...
>          Checked 24 hosts.
> Checking host groups...
>          Checked 2 host groups.
> Checking service groups...
>          Checked 0 service groups.
> Checking contacts...
>          Checked 16 contacts.
> Checking contact groups...
>          Checked 1 contact groups.
> Checking service escalations...
>          Checked 0 service escalations.
> Checking service dependencies...
>          Checked 0 service dependencies.
> Checking host escalations...
>          Checked 0 host escalations.
> Checking host dependencies...
>          Checked 0 host dependencies.
> Checking commands...
>          Checked 41 commands.
> Checking time periods...
>          Checked 5 time periods.
> Checking for circular paths between hosts...
> Checking for circular host and service dependencies...
> Checking global event handlers...
> Checking obsessive compulsive processor commands...
> Checking misc settings...
>
> Total Warnings: 0
> Total Errors:   0
>
> Things look okay - No serious problems were detected during the 
> pre-flight check
> [root at pc-fedora-1 objects]# /etc/rc.d/init.d/nagios start
> Starting nagios:su: warning: cannot change directory to 
> /var/spool/nagios: No such file or directory
>   done.
>
>
>   
As it says in the bottom of the error list - you are missing a 
directory  for nagios to work in .

check that the directory exists and that it has the permissions for the 
nagios user to read/write to it.
This might be needed as the cache location (spool area) and may cause an 
increase in use of CPU and RAM resources  , which might also impact the 
performance of nagios and the internal availability and trending nagios  
keeps.

Assaf

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