What is Heartbeat in Hadoop?

What is Heartbeat in Hadoop?

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, deloitte, company-specific

目标公司: Deloitte

参考答案摘要

Because the Namenode and Datanode in Hadoop are two physically separate machines, Heartbeat is the signal transmitted by the Datanode to the Namenode at regular intervals to confirm its existence, i.e...

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