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关于章节 “1.总体介绍” 中 “Job 物理执行图” 中的问题 #38

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PinjiaHe opened this issue Aug 24, 2015 · 2 comments

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@PinjiaHe
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这一段提到 “比如 partition 99 里面只含有 9 个 records”。请问为什么 partition 99 里面有 9 个 records?

看前面提供的代码,在 flatMap 运行中进行初始化的时候,每个 partition 里应该是有 numKVPairs 个,也就是 10000 个 records.

这里说 9 个 records 是因为经过了 flatMap 操作后,可能只有 9 个 records 被分配到这个 partition 吗?

@JerryLead
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这里没有说清楚,抱歉。
应该是 10,000 个 records,这里说 9 个只是画图方便,有空我会再改下,谢谢指出。

@PinjiaHe
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了解了。感谢回复!

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