Zabbix keeps calculating data from empty items

[Dziki_Jam]

Zabbix keeps calculating items on unresponsive nodes from empty items.
See examples in attachments.
Does anyone know how to make calculated item to stop calculating values from empty items?...

[dsea]

Hello, I'm testing out Zabbix for monitoring our network devices and possibly switching from Nagios and I've been having a few issues the largest of which is the DB connections getting larger and larger for max used and it doesn't appear that they are closing out in a timely matter. Since I'm just testing...

[sticks221]

I have a new Ubuntu 14.4 installation with Zabbix 3.0 and added a VMware vCentre following the install guide.





For testing, I am using the exact same username and password as I would when administering my VMware farm for real so I know that's ok but on the...