Hadoop Admin-@Infosys-Pan India

Cluster Management

Install, configure, and maintain Hadoop clusters (Cloudera, Hortonworks, or Apache Hadoop)

Manage core components including HDFS, YARN, MapReduce

Perform cluster scaling, upgrades, and patching

Administration & Monitoring

Monitor cluster performance, health, and usage

Troubleshoot and resolve cluster issues, failures, and bottlenecks

Implement alerting and monitoring tools (Ambari, Cloudera Manager, Grafana)

Security & Governance

Configure and manage Kerberos authentication

Implement data security policies using Ranger / Sentry

Handle user access controls and permissions

Data Management

Manage data storage, replication, and backup strategies

Optimize HDFS performance and storage utilization

Handle data ingestion and integration workflows

Performance Optimization

Tune Hadoop cluster performance (memory, CPU, storage)

Optimize YARN resource allocation and scheduling

Identify and resolve performance issues in jobs

Integration & Support

Support tools in Hadoop ecosystem:

Hive

Spark

HBase

Sqoop / Flume / Kafka