I had a host being monitored by my master server. When I moved that host to be monitored by my slave cluster (I currently have 2) I lost those links for the graphs.
Then I moved it back (master) and the little graph icon showed up and I noticed that the graphs were actually being updated.
Is there any restriction/additional configuration to show graph icon on hosts being monitored by slaves?
Another thing: when I move a host between monitoring servers, do I have to reload the config to apply the change? I ask it because the line doesn't turn yellow, as I would expect.
And one last question: is there a way to control what slave checks what server in a cluster or it will always load balance between the slaves?