ports/159205: Zabbix Agent - No active checks on server: host [xxxx] not found

[Jaroslav Stepan]

>Number:         159205
>Category:       ports
>Synopsis:       Zabbix  Agent  -  No active checks on server: host [xxxx] not found
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 26 06:40:03 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Jaroslav Stepan
>Release:        FreeBSD 8.2-RELEASE
>Organization:
>Environment:
FreeBSD backup-on 8.2-RELEASE FreeBSD 8.2-RELEASE #1: Fri Mar  4 10:13:43 CET 2011     root at backup-on:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
In Zabbix-Agent is a problem with the "active checks". The agent reported in the log "No active checks on the server: host [backup-on] not found". The Zabbix server in the log message "Sending list of active checks that [] failed: host [backup-on] not found".

In zabbix-agent:
tail -f /tmp/zabbix_agentd.log

36574:20110726:081352.914 Starting Zabbix Agent. Zabbix 1.8.5 (revision 19050).
36575:20110726:081352.915 agent #0 started [collector]
36576:20110726:081352.916 agent #1 started [listener]
36577:20110726:081352.916 agent #2 started [listener]
36578:20110726:081352.917 agent #3 started [listener]
36579:20110726:081352.925 agent #4 started [active checks]
36579:20110726:081353.110 No active checks on server: host [backup-on] not found

In zabbix-server:
tail -f /var/log/zabbix/zabbix_server.log

34072:20110726:081520.819 Sending list of active checks to [] failed: host [backup-on] not found

Hostname is entered in exactly the same in zabbix_agentd.conf and frontend zabbix. This is a valid hostname in DNS (checked via nslookup).

When I turn off "active checks" on the client, those messages disappear from log.

>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: