Github user shuai-xu commented on the issue:
https://github.com/apache/flink/pull/5931
@GJL In blink, we solve this problem like this.
When a container complete, we will first whether the container has
registered yet, if it has registered before, RM will not request a new
container, as the job master will ask for it when failover. If it has not
registered, RM will request a new one.---
