Explain the main methods of reducer.

Explain the main methods of reducer.

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: easy

标签: interviewbit, data-engineer, topic-specific, data-engineering

参考答案摘要

These are the main methods of reducer: setup(): This command is used to specify parameters such as the size of input data and the distributed cache. cleaning(): is a function for deleting temporary fi...

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