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Posted to issues@openwhisk.apache.org by GitBox <gi...@apache.org> on 2018/05/21 11:22:12 UTC

[GitHub] markusthoemmes commented on issue #3681: Enable capability to disable a single invoker for maintenance

markusthoemmes commented on issue #3681: Enable capability to disable a single invoker for maintenance
URL: https://github.com/apache/incubator-openwhisk/issues/3681#issuecomment-390627146
 
 
   I agree we should have this but I'd formulate this more generally to be a "graceful shutdown".
   
   The main work to be done here is: Shutdown the actor system while waiting for everything to be finished. Ideally the kafka queue should be drained as well, but I'd be okay with skipping that bit for the first impl.
   
   Maintenance mode can be implemented by giving the invoker an API (HTTP or JMX) to be able to control the ping-sender. Not sending pings will effectively result in maintenance mode.

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