I'm seeing oddities with my host checks. These are all on 3.2.1, and I
do not have Host dependencies for the hosts in question.
A worker node will detect a host as being down and send back a soft
passive result.
In many cases, the master will then immediately perform an active host
check which is NOT logged. That host check will result in a hard state
change, even though host checks are set for 2 retries at 1 minute intervals.
Anyone know what's going on, or do I need to go read the source?
Here's the relevant entries from the master node's nagios.cfg:
$ grep host nagios.cfg
accept_passive_host_checks=1
cached_host_check_horizon=15
check_for_orphaned_hosts=0
check_host_freshness=0
enable_predictive_host_dependency_checks=1
execute_host_checks=0
global_host_event_handler=event_handler
high_host_flap_threshold=20.0
host_check_timeout=30
host_freshness_check_interval=60
host_inter_check_delay_method=s
host_perfdata_file=/usr/local/nagios/var/host-perfdata.dat
host_perfdata_file_mode=a
log_host_retries=1
low_host_flap_threshold=5.0
max_host_check_spread=30
obsess_over_hosts=0
passive_host_checks_are_soft=1
retained_contact_host_attribute_mask=0
retained_host_attribute_mask=0
retained_process_host_attribute_mask=0
translate_passive_host_checks=0
use_aggressive_host_checking=0
And here's an example host object:
define host {
host_name xxxx
address xxxx
hostgroups
All,cres,cres-dbss,cres-prod-dbss,cres-prod-dbss.soma,dbss,linux2,soma
check_command check-host-alive
max_check_attempts 2
check_interval 3
retry_interval 1
active_checks_enabled 1
passive_checks_enabled 1
check_period 24x7
obsess_over_host 1
check_freshness 1
flap_detection_enabled 1
process_perf_data 0
retain_status_information 1
retain_nonstatus_information 0
contact_groups sysops
notifications_enabled 1
notification_interval 60
notification_period 24x7
notification_options d,u,r,f
notes_url
https://xxxx/cacti/graph_view.php?action=preview&host_id=0&graph_template_id=0&filter=xxxx
action_url /nagios/cgi-bin/extui.py?host=xxxx.com
_ENVIRONMENT prod
_HARDWARE R710
_LOCATION soma
_OS Linux 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48
EDT 2009 x86_64
_PORTFOLIO Encryption
_PRODUCT cres
_PURPOSE dbss
_RACK 07--11
_SERIAL 536QNM1
_SOURCE ASDB/Servers
_SOURCE_URL https://xxxx/servers/admin/servers/server/3363/
__SNMP_COMMUNITY xxxx
}
--
Mike Lindsey
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