Discussion and screenshots:http://www.zabbix.com/forum/showthread.php?t=13198

I have my Zabbix queue ( zabbix[queue] ) around 750 all the time, however, If I go to Administration -> Queue I only have 39 from 2 hosts that currently offline (see screen). Everything seems to work meanwhile

Also: Everytime I add new host, zabbix[queue] rises a bit : example , from 750 to 780)

zabbix_server conf:

1. This is config file for ZABBIX server process
2. To get more information about ZABBIX,
3. go http://www.zabbix.com

1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. GENERAL PARAMETERS #################

1. This defines unique NodeID in distributed setup,
2. Default value 0 (standalone server)
3. This parameter must be between 0 and 999
   #NodeID=0

1. Number of pre-forked instances of pollers
2. Default value is 5
3. This parameter must be between 0 and 255
   StartPollers=5

1. Number of pre-forked instances of IPMI pollers
2. Default value is 0
3. This parameter must be between 0 and 255
   #StartIPMIPollers=0

1. Number of pre-forked instances of pollers for unreachable hosts
2. Default value is 1
3. This parameter must be between 0 and 255
   #StartPollersUnreachable=1

1. Number of pre-forked instances of trappers
2. Default value is 5
3. This parameter must be between 0 and 255
   StartTrappers=5

1. Number of pre-forked instances of ICMP pingers
2. Default value is 1
3. This parameter must be between 0 and 255
   #StartPingers=1

1. Number of pre-forked instances of discoverers
2. Default value is 1
3. This parameter must be between 0 and 255
   #StartDiscoverers=1

1. Number of pre-forked instances of HTTP pollers
2. Default value is 1
3. This parameter must be between 0 and 255
   #StartHTTPPollers=1

1. Listen port for trapper. Default port number is 10051. This parameter
2. must be between 1024 and 32767

#ListenPort=10051

1. Source IP address for outgoing connections
   #SourceIP=

1. Listen interface for trapper. Trapper will listen on all network interfaces
2. if this parameter is missing.

#ListenIP=127.0.0.1

1. How often ZABBIX will perform housekeeping procedure
2. (in hours)
3. Default value is 1 hour
4. Housekeeping is removing unnecessary information from
5. tables history, alert, and alarms
6. This parameter must be between 1 and 24

#HousekeepingFrequency=1

1. How often ZABBIX will try to send unsent alerts
2. (in seconds)
3. Default value is 30 seconds
   SenderFrequency=30

1. Uncomment this line to disable housekeeping procedure
   #DisableHousekeeping=1

1. Specifies debug level
2. 0 - debug is not created
3. 1 - critical information
4. 2 - error information
5. 3 - warnings (default)
6. 4 - for debugging (produces lots of information)

DebugLevel=4

1. Specifies how long we wait for agent response (in sec)
2. Must be between 1 and 30
   Timeout=5

1. Specifies how many seconds trapper may spend processing new data
2. Must be between 1 and 300
   #TrapperTimeout=5

1. After how many seconds of unreachability treat a host as unavailable
   #UnreachablePeriod=45

1. How often check host for availability during the unavailability period
   #UnavailableDelay=60

1. Name of PID file

PidFile=/var/tmp/zabbix_server.pid

1. Name of log file
2. If not set, syslog is used

LogFile=/tmp/zabbix_server.log

1. Maximum size of log file in MB. Set to 0 to disable automatic log rotation.
   #LogFileSize=1

1. Location for custom alert scripts
   AlertScriptsPath=/home/zabbix/bin/

1. Location of external scripts
   #ExternalScripts=/etc/zabbix/externalscripts

1. Location of fping. Default is /usr/sbin/fping
2. Make sure that fping binary has root permissions and SUID flag set
   #FpingLocation=/usr/sbin/fping

1. Location of fping6. Default is /usr/sbin/fping6
2. Make sure that fping binary has root permissions and SUID flag set
   #Fping6Location=/usr/sbin/fping6

1. Temporary directory. Default is /tmp
   #TmpDir=/tmp

1. Frequency of ICMP pings (item keys 'icmpping' and 'icmppingsec'). Default is 60 seconds.
   #PingerFrequency=60

1. Database host name
2. Default is localhost

#DBHost=localhost

1. Database name
2. SQLite3 note: path to database file must be provided. DBUser and DBPassword are ignored.
   DBName=zabbix

1. Database user

DBUser=zabbix

1. Connect to MySQL using Unix socket?

#DBSocket=/tmp/mysql.sock

#PERFORMANCE OPT
StartDBSyncers=1