Question - What are some of the main configuration files used in Hadoop?
Answer -
The Hadoop platform provides multiple configuration files for controlling cluster settings, including the following:
- 7adoop-env.sh. Site-specific environmental variables for controlling Hadoop scripts in the bin directory.
- yarn-env.sh. Site-specific environmental variables for controlling YARN scripts in the bin directory.
- mapred-site.xml. Configuration settings specific to MapReduce, such as the MapReduce.framework.name setting.
- core-site.xml. Core configuration settings, such as the I/O configurations common to HDFS and MapReduce.
- yarn-site.xml. Configuration settings specific to YARN's ResourceManager and NodeManager.
- hdfs-site.xml. Configuration settings specific to HDFS, such as the file path where the NameNode stores the namespace and transactions logs.