A Hadoop cluster is a complex system to manage. As a cluster administrator, one of your prime responsibilities is to manage the performance of your Hadoop cluster. The first step toward managing Hadoop performance is to find out the optimal combination of Hadoop configuration to suit your different job workloads. This is a daunting and challenging task. This can be attributed to the distributed nature of Hadoop. There are many Hadoop configurations that an administrator needs to configure to ensure performant Hadoop operations. The nature of these configurations also varies. Some of themhave a broader impact on Hadoop cluster performance and some of them have a minor impact on it.
To achieve optimal Hadoop cluster performance, you have to systematically understand how different components of the Hadoop ecosystem react to different configuration...
