How does Storm implement reliability in an efficient way?
A Storm topology has a set of special "acker" tasks that track the DAG of tuples for every spout tuple.
acker 英文中文翻译为 :涡流，海啸，水的波纹
但这里个人认为取自track 中ack ,意为跟踪的意思.
storm中acker任务的名字由来猜测?
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转载自zhouchaofei2010.iteye.com/blog/2244317
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