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Replace incrond #15

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opened 2020-08-03 22:48:08 +00:00 by kemonine · 0 comments
kemonine commented 2020-08-03 22:48:08 +00:00
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incrond can cause a systemd storm that can cause some terrible performance/behaviors related to restarting the slideshow. Specifically it causes a storm of restarts for the slideshow during heavy disk create/delete events in the pictures folder used for the slideshow.

This daemon needs to be replaced by a custom python3 script using intify that buffers the events so only after n seconds will the restart event(s) occur.

This will likely need a watchdog timer that's started/reset on filesystem events and destroyed when it times out.

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incrond can cause a systemd storm that can cause some terrible performance/behaviors related to restarting the slideshow. Specifically it causes a storm of restarts for the slideshow during heavy disk create/delete events in the pictures folder used for the slideshow. This daemon needs to be replaced by a custom python3 script using intify that buffers the events so only after n seconds will the restart event(s) occur. This will likely need a watchdog timer that's started/reset on filesystem events and destroyed when it times out. Inspiration - https://www.linode.com/docs/development/monitor-filesystem-events-with-pyinotify/ - https://github.com/chrisjbillington/inotify_simple - https://github.com/gorakhargosh/watchdog - https://stackoverflow.com/questions/16148735/how-to-implement-a-watchdog-timer-in-python
kemonine added this to the Initial Stable Deployment milestone 2020-08-03 22:48:08 +00:00
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Reference: PiFrame/piframe#15
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