Zabbix false alarm for unreachable hosts

[Panna]

zabbix giving false alarm alert in multiple hosts. every day i got
PROBLEM: Zabbix agent on host is unreachable for 5 minutes
then after sometime
OK: Zabbix agent on host is unreachable for 5 minutes
can somebody explain why its happen. any thing i missed.
When I checks Hosts tab it always shows green.:

[ryanr12076]

Same problem

Getting the same issue, but cant figure out why. housekeeping is at 100% during this time, maybe disable that?

[tcilmo]

In short, you database is choking on itself. It can't handle the load while the housekeeper runs. If you disable the housekeeper, the database will continue to grow until you are out of disk - unless you are partitioning the history and trends tables, and clearing out old data in that manor. In that instance, the events table can still grow.There is not a single approach to fix the issue, many variables can be at play. I would do some general research on Zabbix tunning. That will get you started.

Also, I would make sure you are patched up to the current version as well.

Could you provide some more details about your environment?

[Gundeep Singh]

hi all,

My zabbix server is giving false alert for disk, showing disk space is less than 25% on C: but when checked it is normal .
can any one plz help?

[kloczek]

Guys just look on definition of your alarms and metrics.
No one can help you here if you will not tell about what kind of alarms you are talking about.