Summary
In this chapter, we covered the Hadoop-YARN command line interface, that is, the usage of the user, as well as administrative commands. You can now use the different Hadoop-YARN scripts to start or stop services with ease and read log files wherever required. We also talked about the configurations related to different components and the list of default ports used by each component.
With the help of monitoring tools and JMX data, you can analyze cluster state and performance. Features such as recovery, High Availability, and health script checker are now supported.
The next chapter will talk about application execution over a YARN cluster. It gives an in-depth explanation of the application execution phases with the help of a sample MapReduce ...
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