Comment 4 for bug 1434322

 I agree that a global cache will be needed to synchronize access and update the retry count by multiple collector worker processes. Thanks for describing this. I think we can use the distributed locking in Tooz with redis to cache the retry count. Workers will acquire the lock to update the retry count, so this might impact performance, but this will only be when requeueing is enabled and only needed to update the cache, so should be insignificant. I think this sounds more like a new feature than a bug. Let me know what you think.