Hi, The following originated from discussion on a feature in HBase which relies on zookeeper for coordination.
A task is removed from the tasks map. An async ZK request is pending to remove the task's zk node. Another request arrives for this to-be-deleted task. A new in-memory task structure is created. A ZK request is scheduled to create the same task node. Problem will only occur if create-node executes before delete-node in ZK. (If create-node returns NODEEXISTS then we treat that as success). Does ZK re-order async requests? Thanks
