By default, when you add a watch it is immediately set to the active state. An active watch is
registered with the relevant trigger engine and executed according to its configured trigger.
For example, if a watch has a
schedule trigger, it is executed according
to its schedule.
A watch can also be set to the inactive state. An inactive watch is still registered with Watcher,
but it is not registered with a trigger engine and can never be triggered. When you add a watch,
you can use the
active parameter to set its initial state
to inactive. You can deactivate an existing watch with the Deactivate Watch API.
To reactivate a watch, you use the Activate Watch API.
You can still use the Execute Watch API to force the execution of an inactive watch.
Deactivating watches is useful in a variety of situations. For example, if you have a watch that monitors an external system and need to take the system down for maintenance, you can deactivate the watch so doesn’t unnecessarily report a bunch of execution failures during the maintenance window. You might also want to deactivate a watch rather than deleting it entirely in case you might want to use it at some point in the future.
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