Im考虑利用 had/图示来处理一个项目,并且粗略地说明如何建立由数量可变的、按顺序处理的工作流程。
例如:
Job 1: Map source data into X levels.
Job 2: MapReduce Level1 -> appends to Level2
Job 3: MapReduce Level2 -> appends to LevelN
Job N: MapReduce LevelN -> appends to LevelN+1
直至最后一级。 关键是,每个层次必须包含自己的具体来源数据以及前一级的成果。
我看着猪、 h、ham和木.,但还没有看到这种支持。
是否有任何人知道实现这一目标的有效方法? 现在,我 le笑,为ham打造一个包裹,以根据参数制作假文件(在操作时间知道数量,但每次操作都会改变)。
感谢!
You should be able to generate the pig code for this pretty easily using Piglet, the Ruby Pig DSL: http://github.com/iconara/piglet
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