Queue Delayed

[mfi]

Hello,

I'm new to Zabbix and currently testing and learning to use it with 10 hosts.

I have two proxies, each monitoring 3 hosts. My problem is that all checks are delayed by the interval time. So if an item is checked every 60 seconds it takes about 120, with 3600 seconds it takes 7200 etc.

I'm using the latest stable packages, all hosts time synced with ntp, server has just 7 values per second.
One proxy is set to send data every second, the other every 30 seconds. Configuration updates every 10 minutes. The problem occurs with both proxies.

The queue shows for example an item currently delayed 40 minutes, scheduled check was Apr 21st, 2014 09:00:25 AM. In latest data section i see the last check was at Apr 21st, 2014 09:00:17 AM, interval is 3600.

What could be the problem cause? What should i check? The server and proxy graphs are looking fine, no useful information in the logs (with DebugLevel=4 i can't find anything useful either).

[quest]

I got the excat same Problem, i also tried mysql-Tuning on Proxy (https://www.zabbix.com/forum/showthread.php?t=12407), but that didn't help. Did you found a solution on this issue mfi or anyone else?
I also search through the log-files of the Proxy and Agents, but couldn't find a hide on what is the source of the Problem.
This issue only appears if i monitor Host over the Proxy.

Here some data of the Proxy (Zabbix proxy v2.2.5) itself:
The Config (/etc/zabbix/zabbix_proxy.conf):

Server=123.456.789.0
Hostname=Proxy
LogFile=/var/log/zabbix/zabbix_proxy.log
LogFileSize=0
DebugLevel=4
PidFile=/var/run/zabbix/zabbix_proxy.pid
DBName=zabbix
DBUser=zabbix
DBPassword=supersecret!!
DBSocket=/var/lib/mysql/mysql.sock
DataSenderFrequency=20
StartPollers=50
StartPollersUnreachable=25
StartDiscoverers=10
CacheSize=128M
StartDBSyncers=40
HistoryCacheSize=128M
TrapperTimeout=1
ExternalScripts=/usr/lib/zabbix/externalscripts
LogSlowQueries=1000

I also tried changing the max_connection in my /etc/my.cnf - didn't help, yet.
Chaning StartPollers, StartPollersUnreachable (up to 200) didn't help.

And there is the Agent Configuration (on Proxy - monitoring itself):

PidFile=/var/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=0
DebugLevel=4
Server=localhost(IP of Proxy)
StartAgents=10
ServerActive=127.0.0.1
Hostname=Proxy
Include=/etc/zabbix/zabbix_agentd.d/

There i tried to change StartAgents, but i also didn't have any effect.

I hope anyone can give me some hints to solve this issue!
Many thanks in advance!

[mfi]

I'm sorry but I didn't really find a solution, but I solved it by upgrading to 2.3.1 (and recently 2.3.2). That might not be the best way for production environments...