Counters in MapReduce

最新推荐文章于 2024-11-13 17:39:09 发布

转载最新推荐文章于 2024-11-13 17:39:09 发布 · 256 阅读

文章标签：

#MapReduce Counter

本文介绍了Hadoop MapReduce中的计数器（Counters），这是一种用于监控MapReduce作业进度和操作次数的重要工具。Counters不仅可以收集有关MapReduce作业的统计数据，进行质量控制，还可以帮助诊断问题。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Hadoop Counters Explained:

Hadoop Counters provides a way to measure the progress or the number of operations that occur within map/reduce job. Counters in Hadoop MapReduce are a useful channel for gathering statistics about the MapReduce job: for quality control or for application-level. They are also useful for problem diagnosis.
简言之，Counters是监控MapReduce运行状态的工具。