How does the concept of rack awareness contribute to the efficiency of a Hadoop cluster?
- Data Compression
- Data Locality
- Data Replication
- Data Serialization
Rack awareness in Hadoop refers to the ability of the cluster to be aware of the physical location of nodes within a rack. It contributes to efficiency by optimizing data locality, ensuring that data processing is performed on nodes that are close to the stored data. This minimizes data transfer across the network, improving performance.
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