% Time Undetermined is 100% after upgrade

[twebster at daksoft.com]

We just installed a new Nagios server.  We were using Nagios 1.0b5 for
several months and upgraded to version 1.0 on the new server.

Installation went well, the Nagios service checks are working great but the
Trends, Availability and Histogram reports have false data.

The best way to explain what is happening, is by following the following.
      1. Click on Availability.
      2. Select Hosts.
      3. Select ** ALL HOSTS **
      4. Select Last 7 Days.

Upon viewing the availability report, approximately half the hosts data is
correct, uptime ranging from 99.919 to 99.972 with 0.028%  undetermined.

But the other half of the Hosts, report 100.00% time undetermined,
changing the "Report Period" to say This Month or Last Year, does yield
more hosts with correct information, but many are still very incorrect.

1. Why are these hosts being reported time undetermined, when they have
been monitored correctly for over 1 year?
2. Why do some hosts work and others don't?


tony




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