In have an area, that I'm guarding with zm, but due to sun light changes it gives me a lot of false alarms. So, I'm changing MinPixelThreshold field in Zones table during the time of the day. I noticed that killing -HUP zma pids doesn't reload the new MinPixelThreshold settings from the db. Neither does with -TERM. Restarting zm with zmpkg.pl does the trick, but this gives a small downtime (~ 10 seconds).
Looking in the src I can see, for example, that HUP signal triggers eventually ReloadZones() -> Zone::Load() which reloads all zone settings, but in my case I don't think that it does. Am I I correct or I'm missing something? Btw, I have version 1.24.2 (ubuntu 11.04 package).
I've also tried a different approach, by using the zmdc. First, I enabled the debug mode and then I restarted zma with zmdc. For example: zmdc.pl restart zma -m 4 Then, I checked the debug log for MnAT (I suppose this is the MinPixelThreshold value):
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