cluster模式下storm kill topology時作cleanup的解決方法

[時間是讓人猝不及防的東西，晴時有風陰時有雨] 1.背景 在bolt中，須要在topology被關閉前執行某個操做，而根據官方文檔：html The  cleanup method is called when a Bolt is being shutdown and should cleanup any resources that were opened. There's no guarant

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