Implementing and maintaining security measures, including user authentication, authorization, and data encryption. Setting up backup and recovery strategies to protect against data loss and ensuring business continuity. Planning and forecasting resource requirements to ensure scalability and optimal performance of the Hadoop infrastructure. Installing and configuring Hadoop clusters, including components like HDFS, YARN, MapReduce, Hive, HBase, etc. Ensuring the health and performance of Hadoop clusters through constant monitoring, troubleshooting, and tuning. more ->