Following are some best practices to be followed for Hadoop deployment:
- Start small: Like other software projects, an implementation Hadoop also involves risks and cost. It's always better to set up a small Hadoop cluster of four nodes. This small cluster can be set up as proof of concept (POC). Before using any Hadoop component, it can be added to the existing Hadoop POC cluster as proof of technology (POT). It allows the infrastructure and development team to understand big data project requirements. After successful completion of POC and POT, additional nodes can be added to the existing cluster.
- Hadoop cluster monitoring: Proper monitoring of the NameNode and all DataNodes is required to understand the health of the cluster. It helps to take corrective actions in the event of node problems. If a service goes down, timely action can help...