Github user danny0405 commented on the issue:
https://github.com/apache/storm/pull/414
@revans2 @HeartSaVioR Actually, i have an idea, but i'm not sure if it will
work correctly. Mainly because the compatibility of Supervisor LocalState and
Zookeeper metadata between different version of storm. Also because supervisors
are not start up at the same time, there is a time old and new storm code
worker working together of one topology. So, is there any problem?
1. when a supervisor first start up, write its version to LocalState
2. supervisor check if the LS version is same with current code version
3. if it's same do nothing, if it's different, kill all the workers on this
node
4. sync worker processes from LocalState and ZooKeeper.
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