working triggers stop creating problems zabbix 6.2.1

[verde]

Hi,
it's the first time I'm experiencing that working triggers eventually stop being fired (there weren't changes on the triggers or items configuration). After restart zabbix server they seemed to be working again.
The issue may be started approx 2days ago.

What I'm thinking is that maybe the triggers are reaching limit processing values that some are ignored by the zabbix_server configuration.
I don't see any problem created by zabbix server itself except "More than 100 items having missing data for more than 10 minutes" (attaching image)

Wondering if incrementing StartPollers to twice could help on this issue:

server configuration:
===============
LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/var/run/zabbix/zabbix_server.pid
SocketDir=/var/run/zabbix
DBName=zabbix
DBUser=zabbix
DBPassword=zabbix
StartPollers=8
StartPollersUnreachable=3
StartPingers=5
SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
StartSNMPTrapper=1
CacheSize=128M
CacheUpdateFrequency=5
HistoryCacheSize=64M
TrendCacheSize=8M
ValueCacheSize=32M
Timeout=30
LogSlowQueries=3000
StatsAllowedIP=127.0.0.1

Any suggestions?

Thanks,

[verde]

Hi, any suggestions? this issue is getting complicated since is not alarming critical events.

[verde]

Guys, I've upgraded my server to Zabbix 6.2.6 and this issue came up again and it's currently ongoing.
On last Friday an interface operational status trigger worked, sent notifications, and everything was fine, but today almost three days later, the same kind of event happened and the trigger didn't fire off.

The latest data show the state changes of the two events, but if I review the menu "Report -> Action logs" only appears the event last Friday, not this last one.

The trigger configuration is the default from Interfaces SNMP template: Network interfaces discovery: Interface {#IFNAME}({#IFALIAS}): Link down
The values are 1(up), 2 (down). Nothing complex in the conditions actually...



Anything to review in the server configuration?

LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/var/run/zabbix/zabbix_server.pid
SocketDir=/var/run/zabbix
DBName=zabbix
DBUser=zabbix
DBPassword=zabbix
StartPollers=40
StartPreprocessors=12
StartPollersUnreachable=30
StartPingers=5
SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
StartSNMPTrapper=1
CacheSize=512M
CacheUpdateFrequency=15
HistoryCacheSize=64M
TrendCacheSize=8M
ValueCacheSize=64M
Timeout=30
LogSlowQueries=3000
StartLLDProcessors=10
StatsAllowedIP=127.0.0.1

Latest data:











Thanks,