How to contribute limited/specific amount of storage as slave to the cluster?

In a Hadoop cluster, contributing a specific amount of storage from a slave node involves partitioning the available disk space on the node and configuring Hadoop to use that partition for storage. Here’s a step-by-step guide, assuming you are working with a Linux-based Hadoop distribution:

1. Partition the Disk:

• Use a partitioning tool like fdisk or parted to create a new partition on the disk where you want to allocate storage for Hadoop data. Ensure that the partition type is set to Linux.

sudo fdisk /dev/sdX        

2. Format the Partition:

• Format the newly created partition with a file system compatible with Hadoop. The recommended file system for Hadoop is Hadoop Distributed File System (HDFS). You can use a command like mkfs or hadoop namenode -format to format the partition with HDFS.

sudo mkfs -t ext4 /dev/sdX1        

3. Mount the Partition:

• Create a directory where you want to mount the new partition, and then mount the partition to that directory. This step ensures that Hadoop can use the storage space on the partition.

sudo mkdir /data
sudo mount /dev/sdX1 /data        

4. Configure Hadoop:

• Update the Hadoop configuration files on the slave node to include the new storage location. The key configuration files to check and update are usually hdfs-site.xml and core-site.xml.

<!-- Example: Adding a new data directory in hdfs-site.xml -->
<property>
    <name>dfs.datanode.data.dir</name>
    <value>/data/datanode</value>
</property>        

5. Restart Hadoop Services:

• Restart the Hadoop services on the slave node to apply the changes.

sudo service hadoop-hdfs-datanode restart        

In a Hadoop cluster, contributing a specific amount of storage from a slave node involves partitioning the available disk space on the node and configuring Hadoop to use that partition for storage. Here’s a step-by-step guide, assuming you are working with a Linux-based Hadoop distribution:

These steps provide a general guideline for contributing a specific amount of storage as a slave to a Hadoop cluster.

Thank You..