Zabbix 2.4.4 on Oracle Linux 6.
Zabbix periodically raises "Agent is unreachable OK" alert without ever having sent the problem alert for that trigger. Looking at data for agent.ping shows that it is always 1, every minute, including specifically during that alert time. Very strange.
This happens only for a few Windows servers (2012) out of around 100 Windows servers that are monitored. All those servers are in same rack if that helps. The alerts come in around once every day or two per server.
How's that possible?
EDIT:
Looking at values closer, every time an OK alert was sent, the value for previous minute for agent.ping was missing.
However, the trigger is :agent.ping.nodata(6m)}=1, and only one value was missing. And in any case, there was never a PROBLEM alert for that trigger.
Any suggestions appreciated,
Mike
Zabbix periodically raises "Agent is unreachable OK" alert without ever having sent the problem alert for that trigger. Looking at data for agent.ping shows that it is always 1, every minute, including specifically during that alert time. Very strange.
This happens only for a few Windows servers (2012) out of around 100 Windows servers that are monitored. All those servers are in same rack if that helps. The alerts come in around once every day or two per server.
How's that possible?
EDIT:
Looking at values closer, every time an OK alert was sent, the value for previous minute for agent.ping was missing.
However, the trigger is :agent.ping.nodata(6m)}=1, and only one value was missing. And in any case, there was never a PROBLEM alert for that trigger.
Any suggestions appreciated,
Mike
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