Architects brief operations on Hadoop-style cluster roles. Which description matches the classic coordinator versus worker pattern?
Select an answer to reveal the explanation.
Short Explanation
Someone keeps the map of the city; the crews do the heavy lifting on their blocks. Coordinator plans, workers store and compute.
Full Explanation
Hadoop-oriented architectures traditionally use master/coordinator services (for example NameNode or resource managers) to maintain cluster metadata and schedule work, while worker nodes (DataNodes, node managers) hold data and run tasks. Understanding that split clarifies failure domains and scaling behavior. Designs without clear coordination struggle to present a coherent namespace or schedule.