Case 1: Normal Case: Current Hour RAIN1 Product Arrives
In this case, the current hour RAIN1 product arrives (R*). The algorithm runs on this and the
prior RAIN1 products that are available over the previous 4 hours.
Case 2: Current Hour RAIN1 Does Not Arrive, But Next Hour RAIN1 Does
RR R
Current
Hour
Tail Wait
Next
Hour
In this case, the current hour RAIN-N does not arrive so the scheduler waits.
Eventually the next hour RAIN-N arrives, so the scheduler assumes that the current hour
RAIN-N will never arrive and runs the product on the available RAIN1s, without the current
hour data.
If the current hour RAIN1 eventually arrives, it does not trigger the scheduling algorithm
since the Next Data Time in the Product Scheduler has already advanced to the next
hour. However, it is used in future RAIN-N processing, that is, for the next hour.
Case 3: Current Hour RAIN1 Does Not Arrive, but Wait Time Expires
In this case the RAIN-N product runs after the Tail and Wait times have elapsed.
The Tail time is the time on the local computer between the arrival of the most recent
RAIN1 and the current hour.
The Wait time threshold is configured in IRIS Setup > Product to account for network delay.
Chapter 3 – Configuring IRIS Products
RESTRICTED 61
To Next Page
Loading...