Nagios Support Forum

Hello,

I'm running XI ver 2011R2.4.

So it's a long story but I was working on snmp monitoring for a Cisco switch. I was renaming one of the switch interfaces to something like Batch1 (Private). When I was trying to save the new service I was getting errors that it couldn't save. I went into the configuration snapshot section and I saw in the error logs that Nagios was having a problem with the ( ) in my naming convention.

Next thing I know I'm getting a red explanation point on the top right side of the page saying the monitoring engine isn't running. When I would try to start the service manually in system status, I get an error occurred processing your request. I also restarted the server and I still have the same problem with the service not starting.

When I highlight the red explanation point next to monitoring engine, I get "No lock file found in /usr/local/nagios/var/nagios.lock."

Please let me know what I need to do ASAP. If its command line related please understand that I'm a super noob when it comes to Linux, so I'll need detailed instructions on what needs to be done.

Also, if needed I have taken several config snapshots before this problem, but I'm unsure if that will help, make matters worse, or if I should do the import.

Also -- I just ran the command below based on a previous post and below is what I got. I'm not sure what to do next.

[root@nagios ~]# tail -f /usr/local/nagios/var/nagios.log
[1338912147] Auto-save of retention data completed successfully.
[1338912397] SERVICE ALERT: localhost;Current Load;OK;HARD;4;OK - load average: 1.60, 2.35, 2.80
[1338912397] SERVICE FLAPPING ALERT: localhost;Current Load;STARTED; Service app ears to have started flapping (20.9% change >= 20.0% threshold)
[1338913037] SERVICE NOTIFICATION: nagiosadmin;Blog.dev.vlmc;Memory Usage;WARNIN G;xi_service_notification_handler;WARNING - 100 / 1002 MB (9%) Free Memory, Used : 902 MB, Shared: 0 MB, Buffers: 155 MB, Cached: 266 MB
[1338913385] ndomod: Error writing to data sink! Some output may get lost...
[1338913385] ndomod: Please check remote ndo2db log, database connection or SSL Parameters
[1338913396] Caught SIGTERM, shutting down...
[1338913396] Successfully shutdown... (PID=20368)
[1338913396] ndomod: Shutdown complete.
[1338913396] Event broker module '/usr/local/nagios/bin/ndomod.o' deinitialized successfully.


Thank you!

Can you go to Configure -> Core Config Manager -> Write Config Tool
Click the top 3 items from the top down

if you have errors, fix the problem in the core config manager this is likely due to the fact that you cannot use () in hostnames or service descriptions

once you fix the reported error, repeat above steps with the top 3 buttons

Once you have 0 errors, go to the console and run

I followed most of your instructions and somehow got everything to work. THANK YOU!