Nagios check latency

Muhamad Faiz Muhamad.Faiz at Asia.Xchanging.com
Tue Aug 13 05:49:19 CEST 2013


Hi guys,

My Nagios setup are having high service check latency.

Check nagios latency result is 240 seconds!

./check_nagios_latency.sh -w 30 -c 60
CRITICAL: Latency at 240.183 seconds!

Modification in my Nagios.cfg file is only as below. Other than this, is default.

# MODIFIED
admin_email=muhamad.faiz at asia.xchanging.com
admin_pager=muhamad.faiz at asia.xchanging.com
translate_passive_host_checks=1
log_event_handlers=0
use_large_installation_tweaks=1
enable_environment_macros=0
enable_embedded_perl=0
use_embedded_perl_implicitly=0
max_concurrent_checks=1600
service_perfdata_file_processing_command=process-service-perfdata-file-pnp-bulk
host_perfdata_file_processing_command=process-host-perfdata-file-pnp-bulk
service_perfdata_file_processing_interval=60
host_perfdata_file_processing_interval=60
status_update_interval=40


# /usr/local/nagios/bin/nagios -s /usr/local/nagios/etc/nagios.cfg

Nagios Core 3.5.0
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 03-15-2013
License: GPL

Website: http://www.nagios.org
Timing information on object configuration processing is listed
below.  You can use this information to see if precaching your
object configuration would be useful.

Object Config Source: Config files (uncached)

OBJECT CONFIG PROCESSING TIMES      (* = Potential for precache savings with -u option)
----------------------------------
Read:                 0.415803 sec
Resolve:              0.006900 sec  *
Recomb Contactgroups: 0.001862 sec  *
Recomb Hostgroups:    3.819786 sec  *
Dup Services:         0.637380 sec  *
Recomb Servicegroups: 3.419804 sec  *
Duplicate:            0.000417 sec  *
Inherit:              0.013748 sec  *
Recomb Contacts:      0.000000 sec  *
Sort:                 0.000000 sec  *
Register:             0.616385 sec
Free:                 0.029930 sec
                      ============
TOTAL:                8.962015 sec  * = 7.899897 sec (88.15%) estimated savings


RETENTION DATA TIMES
----------------------------------
Read and Process:     0.863815 sec
                      ============
TOTAL:                0.863815 sec


Timing information on configuration verification is listed below.

CONFIG VERIFICATION TIMES          (* = Potential for speedup with -x option)
----------------------------------
Object Relationships: 0.080360 sec
Circular Paths:       0.001152 sec  *
Misc:                 0.011244 sec
                      ============
TOTAL:                0.092756 sec  * = 0.001152 sec (1.2%) estimated savings


EVENT SCHEDULING TIMES
-------------------------------------
Get service info:        0.051265 sec
Get host info info:      0.032301 sec
Get service params:      0.000010 sec
Schedule service times:  0.002476 sec
Schedule service events: 0.002514 sec
Get host params:         0.000000 sec
Schedule host times:     0.000937 sec
Schedule host events:    0.001287 sec
                         ============
TOTAL:                   0.090790 sec


Projected scheduling information for host and service checks
is listed below.  This information assumes that you are going
to start running Nagios with your current config files.

HOST SCHEDULING INFORMATION
---------------------------
Total hosts:                     11753
Total scheduled hosts:           7
Host inter-check delay method:   SMART
Average host check interval:     300.00 sec
Host inter-check delay:          42.86 sec
Max host check spread:           30 min
First scheduled check:           Tue Aug 13 11:43:54 2013
Last scheduled check:            Tue Aug 13 11:43:54 2013


SERVICE SCHEDULING INFORMATION
-------------------------------
Total services:                     18662
Total scheduled services:           170
Service inter-check delay method:   SMART
Average service check interval:     535.76 sec
Inter-check delay:                  3.15 sec
Interleave factor method:           SMART
Average services per host:          1.59
Service interleave factor:          1
Max service check spread:           30 min
First scheduled check:              Tue Aug 13 11:52:49 2013
Last scheduled check:               Tue Aug 13 11:58:39 2013


CHECK PROCESSING INFORMATION
----------------------------
Check result reaper interval:       10 sec
Max concurrent service checks:      1600


PERFORMANCE SUGGESTIONS
-----------------------
I have no suggestions - things look okay.

Any advice will be much appreciated.

Regards,
Faiz
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