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SCHEDULER-577 - Periodic AutoFocus failures (bad skies, AF problems, ???)
Estimated: 8 Hours 0 Minutes   Logged: 4 Hours 0 Minutes   Time Left: 4 Hours 0 Minutes
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Type: Enhancement Enhancement
Priority: Medium Medium
Severity: Minor Minor
Status: Closed Closed
Resolution: Complete
Resources: Bob Denny
Reported By: Bob Denny
Component: Dispatch Scheduler Engine
Fixed In Version: 3.3
Versions Affected: 3.2
Start Date: 1/21/2011
Percent Complete:
Created:  1/21/2011 4:13:28 PM
Revised:
 1/21/2011 5:52:50 PM
Closed:  1/21/2011 5:52:50 PM
Resolved:  1/21/2011 5:52:40 PM

When the skies are so bad that AutoFocus keeps failing over and over, and there is no other work to do, the Scheduler can spend all of its time focusing over and over and over. This is silly.

Instead, keep track of the number of AF failures in a row, and as this number gets larger, increase the interval between retries, up to 30 minutes. This should not happen with Excellent sky conditions, and if it does, log it and maybe even send an email alert.

Maybe, keep watch over the Sky Condition and if it changes from anything to Excellent, reset this back-off and start trying AF again. Be careful not to over engineer this! 
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