Big Data Analytics Platform and Tools for Epidemic Forecasting and Mitigation

Installed and configured Hadoop 3.4 on a multi-node cluster:
Single Node (pseudo-distributed) setup for initial testing.
Multi-Node (fully distributed) setup for production-like environment.

Configured important files:
core-site.xml, hdfs-site.xml, yarn-site.xml, mapred-site.xml

Enabled SSH key-based login between nodes for cluster operations.

Practiced key HDFS commands:
Uploading/downloading files.
Directory operations (mkdir, rm, chmod).

Checking block distribution and replication.

Monitoring and Management
Used Hadoop Web UI to monitor:
Cluster health.
DataNode status.
HDFS usage and NameNode logs.

Learned basic troubleshooting techniques by analyzing logs and fixing configuration errors.