Distributed Monitoring - Freshness and Latency

[Harald Böhmecke]

Hi,

I am having a problem regarding Latency.

Here my Technical information:

All O.S: Ubuntu 9.03 Server//Nagios3.0.6

Main Server DL-380 4GB RAM and Quad-Core 3.0Mhz



My distributed Nagios3 Satellites are reporting Latency, although no
CPU, Mem, Disk or other peaks are evident:

Hosts:
Check Execution Time:  0.03 sec 4.22 sec 1.009 sec
Check Latency:0.01 sec 22.67 sec 3.166 sec

Services:
Check Execution Time:  0.04 sec 0.21 sec 0.099 sec 
Check Latency: 0.01 sec 20.18 sec 2.957 sec

Now I am just starting to configure this Satellite, so I only have 29
Hosts and 153 Services.

Due to the Latency on the Satellite, the freshness checks on the Main
Nagios are triggering and this is not good, because my SNMP bandwidth
plugins are making disasters on my graphs.

Attached is an output of nagios3 -s /etc/nagios3/nagios.cfg


Tried debugging but everything looks ok... but... what do I know, rite?

Any help is greatly appreciated!!


Regards,

Harald 

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Nagios 3.0.6
Copyright (c) 1999-2008 Ethan Galstad (http://www.nagios.org)
Last Modified: 12-01-2008
License: GPL

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:                 0.009900 sec
Resolve:              0.000208 sec  *
Recomb Contactgroups: 0.000020 sec  *
Recomb Hostgroups:    0.000003 sec  *
Dup Services:         0.001928 sec  *
Recomb Servicegroups: 0.000006 sec  *
Duplicate:            0.000007 sec  *
Inherit:              0.000083 sec  *
Recomb Contacts:      0.000001 sec  *
Sort:                 0.000000 sec  *
Register:             0.001701 sec
Free:                 0.000185 sec
                      ============
TOTAL:                0.014044 sec  * = 0.002258 sec (16.08%) estimated savings


RETENTION DATA TIMES
----------------------------------
Read and Process:     0.009276 sec
                      ============
TOTAL:                0.009276 sec


Timing information on configuration verification is listed below.

CONFIG VERIFICATION TIMES          (* = Potential for speedup with -x option)
----------------------------------
Object Relationships: 0.000556 sec
Circular Paths:       0.000011 sec  *
Misc:                 0.000302 sec
                      ============
TOTAL:                0.000869 sec  * = 0.000011 sec (1.3%) estimated savings


EVENT SCHEDULING TIMES
-------------------------------------
Get service info:        0.000955 sec
Get host info info:      0.000003 sec
Get service params:      0.000023 sec
Schedule service times:  0.000986 sec
Schedule service events: 0.000206 sec
Get host params:         0.000002 sec
Schedule host times:     0.000132 sec
Schedule host events:    0.000042 sec
                         ============
TOTAL:                   0.002349 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:                     29
Total scheduled hosts:           29
Host inter-check delay method:   SMART
Average host check interval:     300.00 sec
Host inter-check delay:          10.34 sec
Max host check spread:           30 min
First scheduled check:           Thu Jan  1 01:00:00 1970
Last scheduled check:            Thu Jan  1 01:00:00 1970


SERVICE SCHEDULING INFORMATION
-------------------------------
Total services:                     153
Total scheduled services:           153
Service inter-check delay method:   SMART
Average service check interval:     271.76 sec
Inter-check delay:                  1.78 sec
Interleave factor method:           SMART
Average services per host:          5.28
Service interleave factor:          6
Max service check spread:           30 min
First scheduled check:              Tue Jul  7 18:45:37 2009
Last scheduled check:               Tue Jul  7 18:49:33 2009


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


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

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