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Keep in mind, that hosts without services show a gray bar reading "no data" for "services average". The host's SLA data is still collected. |
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If the selected timespan exceeds the time, a certain host or service exists, the oldest date is selected instead. |
How SLA report are created
For each state of a host or service (e.g. OK, CRITICAL, etc.) the times of the states are accumulated by calculating the corresponding sla data files, creating a histogram of times over the different states. Each state features a 'time_state'. The The sum of time_states calculates the 'total_time'. This 'total_time' must be equal to the requested (or adjusted) timespan.
The The sum is calculated with the following formula:
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