首先，看一下遇到的問題：
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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這個問題在網上查了好久，沒有精準的回答，特此記錄一下！
原因是json文件的最後一個pertion結束之後多了一個逗號！
去掉逗號即OK了！
具體如下：
