Nagios Support Forum

Hi All,

We are observing 10-15 minutes delay in service check, Whenever new services added or recheck a service forcefully delay can we observed.

We are getting following entries in logs:

/var/log/nagios/nagios.log:[1479888680] Max concurrent service checks (10) has been reached. Nudging host1:Check cursors oltp by 6 seconds...
/var/log/nagios/nagios.log:[1479888680] Max concurrent service checks (10) has been reached. Nudging host2:Check tablespace olap by 11 seconds...
/var/log/nagios/nagios.log:[1479888681] Max concurrent service checks (10) has been reached. Nudging Switch3:GigabitEthernet1/0/4 by 9 seconds...
/var/log/nagios/nagios.log:[1479888681] Max concurrent service checks (10) has been reached. Nudging host3:Swap by 13 seconds...
/var/log/nagios/nagios.log:[1479888681] Max concurrent service checks (10) has been reached. Nudging host4:Check userexpired oltp by 13 seconds...
/var/log/nagios/nagios.log:[1479888682] Max concurrent service checks (10) has been reached. Nudging host5:Check Backup olap by 10 seconds...
/var/log/nagios/nagios.log:[1479888682] Max concurrent service checks (10) has been reached. Nudging host6:Check instance olap by 10 seconds...
/var/log/nagios/nagios.log:[1479888682] Max concurrent service checks (10) has been reached. Nudging host7:chek_hpasm by 14 seconds...

You should go through this document on performance: https://assets.nagios.com/downloads/nag ... uning.html

Point #6 is particularly pertinent to your situation.

Please let us know if you have additional questions. Please be aware that we will be out of the office Thursday and Friday this week due to US Thanksgiving.