Restart HDFS and MapReduce services
After adding the topology script property to core-site.xml, you must
restart the HDFS and MapReduce services.
Scaling Namespaces and Optimizing Data Storage
Also available as:
- Introduction
- Scaling namespaces
- Optimizing data storage
- Balancing data across disks of a DataNode
- Increasing storage capacity with HDFS erasure coding
- Increasing storage capacity with HDFS compression
- Setting archival storage policies
- Balancing data across an HDFS cluster
- Optimizing performance
- Using the NFS Gateway for accessing HDFS
- Data storage metrics
- APIs for accessing HDFS