A worker plugin enables custom code to run at different stages of the Workers' lifecycle. A nanny plugin does the same thing, but benefits from being able to run code before the worker is started, or to restart the worker if necessary.
To implement a plugin implement some of the methods of this class and register the plugin to your client in order to have it attached to every existing and future nanny by passing nanny=True
to Client.register_worker_plugin<distributed.Client.register_worker_plugin>
.
The restart
attribute is used to control whether or not a running Worker
needs to be restarted when registering the plugin.
Interface to extend the Nanny
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