AWS error: Specified token has exceeded its maximum lifetime

[jakubknejzlik]

I've run into issue that instance of my SWF decider got response from AWS saying:
ValidationException: Specified token has exceeded its maximum lifetime

It happened after around 4 days of running.

Maybe it's not related, but before this error the decider receives another one for the few times (2x):
UnknownResourceFault: Unknown decision task

Does anyone run into this issue?

[KleinYuan]

@jakubknejzlik

You may get this error from pollForDecisionTask API while paging through history. The next page token returned from this API expires after 60 seconds. It's possible that your decider is holding on to the token longer than 60 seconds before using it. Decision tasks are expected to be short lived. Are you intentionally doing something in your decider that takes a long time?

Also you should not see this error when trying to complete an activity or a decision task. If a task times out, you will get an UnknownResource fault when you try to complete it.

Quotes from an AWS guy: https://forums.aws.amazon.com/thread.jspa?messageID=361624