Why does Hadoop use Context objects?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: Data Engineer

参考答案摘要

Context object permits the Mapper/Reducer to communicate with the remainder of the Hadoop system. It contains task configuration data and interfaces that allow it to send output. It can be used by pro...

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