Github user danny0405 commented on the issue:
https://github.com/apache/storm/pull/2319
@HeartSaVioR @revans2
i have change the default backend to memory one, also i change the
distribute mode to asynchronous
i chose a rocks-db backend because when the cluster goes to large,
assignments-info will takes more memory cache[ memory mode ], but if this is
not a factor, we can just remote it---
