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请教一下bolt的execute流程
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luaj...@gmail.com
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Dec 21, 2017, 3:43:40 AM
12/21/17
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我是storm/jstorm的新手,有一些基础问题想请教大家,谢谢!
bolt在execute返回前,必须ack吗?
可否在返回后,延迟一段时间再ack?
类似地,如果bolt需要emit新的tuple到下游,可否在execute返回后延迟进行?
可否保留原来的tuple作为anchor?如果没有原来的tuple已经被ack了,那是否不应该作为anchor,而是unanchor地emit新的tuple?
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