2 problems with FriendStatus

[Kevin Matthews]

Running cfengine version 2.1.6

The FriendStatus function in alerts does not work as I expect.  In the
alerts section I have:

host01::
FriendStatus(0)

I get two kinds of unexpected responses:

1.  Host 10.0.66.15 not seen for 24.81 hours.  However, that is
because after configuring the linux box with 10.0.66.15 I then
assigned a hostname.  I would like to all references to 10.0.66.15 in
host01's (policyhost's) cf_lastseen.db so that I will stop getting
this message.  Can I purge entries for cf clients?

2.  Not seen for 0.02 hours
    expected delta_t = 18.63 secs (= 0.01 hours

In cfagent.conf I have schedule = ( Min15_20 Min30_35 Min45_50 ).  I
don't know why the policyhost would expect to be hailed by this client
as often as every 18 seconds.

Is there a way to tune out the noise here?