This document describes the current stable version of Celery (4.0).
For development docs,
go here.
celery.events.snapshot
Periodically store events in a database.
Consuming the events as a stream isn’t always suitable
so this module implements a system to take snapshots of the
state of a cluster at regular intervals. There’s a full
implementation of this writing the snapshots to a database
in djcelery.snapshots in the django-celery distribution.
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class
celery.events.snapshot.Polaroid(state, freq=1.0, maxrate=None, cleanup_freq=3600.0, timer=None, app=None)[source]
Record event snapshots.
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cancel()[source]
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capture()[source]
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cleanup()[source]
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cleanup_signal = <Signal: Signal>
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clear_after = False
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install()[source]
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on_cleanup()[source]
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on_shutter(state)[source]
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shutter()[source]
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shutter_signal = <Signal: Signal>
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timer = None
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celery.events.snapshot.evcam(camera, freq=1.0, maxrate=None, loglevel=0, logfile=None, pidfile=None, timer=None, app=None)[source]
Start snapshot recorder.
