摘要:
转自:http://my.oschina.net/hanzhankang/blog/200275 附:各种操作的逻辑执行图 https://github.com/JerryLead/SparkInternals/blob/master/markdown/2-JobLogicalPlan.md 本文提 阅读全文
摘要:
https://github.com/JerryLead/SparkInternals/blob/master/markdown/3-JobPhysicalPlan.md stage 和 task 的划分问题。只要在 ShuffleDependency 处断开,就只剩 NarrowDependenc 阅读全文