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java - How to simulate and run some servers on Hadoop?

问题描述

I need a simulator to run some servers on Hadoop:

  1. Able to work with database.
  2. I want to run a Java on it and see its results.
  3. Run the Hadoop without MapReduce

标签： javahadoopmapreducesimulationsimulator

解决方案

You don't run servers on Hadoop. It's the other way around.

If you want to create a Hadoop environment without installing Hadoop on your own, then you can download a virtual machine or start an account with any of the major cloud providers

Hadoop just starts YARN and HDFS. If you want to run code that isn't MapReduce, you'll need to find/install another tool such as Spark, Pig, Hive, Flink, etc, each of which can be used to query databases, but are not one themselves

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