Kafka集群扩容遇到的问题

首先，看一下遇到的问题：
Partitions reassignment failed due to Partition reassignment data file imp-imps-app-web.json is empty
kafka.common.AdminCommandFailedException: Partition reassignment data file imp-imps-app-web.json is empty
at kafka.admin.ReassignPartitionsCommand$.executeAssignment(ReassignPartitionsCommand.scala:114)
at kafka.admin.ReassignPartitionsCommand$.main(ReassignPartitionsCommand.scala:47)
at kafka.admin.ReassignPartitionsCommand.main(ReassignPartitionsCommand.scal



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这个问题在网上查了好久，没有精准的回答，特此记录一下！
原因是json文件的最后一个pertion结束之后多了一个逗号！
去掉逗号即OK了！
具体如下：