What are the commonly used configuration files for sett…

Commonly used configuration files for setting up a Hadoop cluster include:

1. core-site.xml: Configuring core parameters for Hadoop, such as file system, block size, and HDFS replication factor.
2. The hdfs-site.xml file is used for configuring parameters related to HDFS, such as the addresses of the NameNode and DataNodes, replica number, block size, etc.
3. mapred-site.xml is used to configure parameters related to MapReduce, such as the addresses of JobTracker and TaskTracker, the number of task slots, and the number of task retries.
4. yarn-site.xml: Configure YARN parameters such as ResourceManager and NodeManager addresses, node resource allocators, and maximum resource limits for containers.
5. Specify the work nodes in the Hadoop cluster, with one node name or IP address per line.
6. hadoop-env.sh: Configures environment variables for Hadoop, such as JAVA_HOME and HADOOP_HOME.
7. yarn-env.sh: Configure environment variables for YARN, such as JAVA_HOME and YARN_HOME.
8. mapred-env.sh: Configure environment variables for MapReduce, such as JAVA_HOME, HADOOP_MAPRED_HOME, etc.

These configuration files are typically located in the “conf” folder within the installation directory of Hadoop. Depending on specific deployment needs and environmental settings, modifications can be made to these configuration files.