[SPAM] Re: Issue with distributed Host checks
Assaf Flatto
nagios at flatto.net
Fri Feb 3 09:11:43 CET 2012
You can try and remove the
active_checks_enabled 1
from the host config , the fact that it is enabled make nagios see the
change and then trigger the active check which will be the 2nd status
update ( from up to down) and hence make it a hard state .
if you do not trigger the active check , the master nagios will log the
status change and then wait for the worker's next update.
Assaf
Mike Lindsey wrote:
> 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
> }
>
>
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