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What is an issue or limitation of the original MapReduce v1 paradigm?
Question: What is an issue or limitation of the original MapReduce v1 paradigm?
- It’s not scalable
- It only has one TaskTracker
- It only supports Parquet file types
- It only has one JobTracker
Correct Answer: 4
MapReduce and YARN
Apache Hadoop is one of the most popular tools for big data processing. It has been successfully deployed in production by many companies for several years. Though Hadoop is considered a reliable, scalable, and cost-effective solution, it is constantly being improved by a large community of developers.
As a result, the 2.0 version offers several revolutionary features, including Yet Another Resource Negotiator (YARN), HDFS Federation, and high availability, which make the Hadoop cluster much more efficient, powerful, and reliable.”
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