[Bugfix]leader重选时忽略ElectionNotNeededException异常,返回成功 #988
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请不要在没有先创建Issue的情况下创建Pull Request。
变更的目的是什么
fix issue 987
简短的更新日志
更新任务状态时要执行leader重选,一部分leader重选失败,导致集群均衡任务状态无法更新。
修复方法:leader重选报错ElectionNotNeededException: Leader election not needed for topic partition时,可以认为无需执行重选,直接忽略该异常即可。
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