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What is the primary role of a master node in Elasticsearch?

easy🧠 Conceptual Q11 of Q15
Elasticsearch - Cluster Management

What is the primary role of a master node in Elasticsearch?

AManage cluster-wide settings and coordinate nodes
BStore and manage the actual data
CProcess incoming documents before indexing
DServe as a backup node for data recovery
Step-by-Step Solution
Solution:

  1. Step 1: Understand node roles in Elasticsearch

    The master node is responsible for managing the cluster state and coordinating nodes.

  2. Step 2: Differentiate master from other roles

    Data nodes store data, and ingest nodes process documents. Master nodes handle cluster-wide tasks.

  3. Final Answer:

    Manage cluster-wide settings and coordinate nodes -> Option A

  4. Quick Check:

    Master node = cluster coordination [OK]
Quick Trick: Master node controls cluster settings and coordination [OK]
Common Mistakes:
MISTAKES
  • Confusing master node with data node
  • Thinking ingest node manages cluster
  • Assuming master stores data

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