[Solved] What is the primary role of a master node in an Elasticsearch cluster? - Ans: Managing cluster-wide settings and node membership | Elasticsearch

Elasticsearch - Basics and Architecture

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

ABacking up data to external storage

BManaging cluster-wide settings and node membership

CHandling user queries and search requests

DStoring and indexing data shards

Step-by-Step Solution

Solution:

Step 1: Understand master node responsibilities
The master node controls cluster-wide actions like adding or removing nodes and managing metadata.
Step 2: Differentiate roles of other nodes
Data nodes store and index data, while coordinating nodes handle queries. Backup is external.
Final Answer:
Managing cluster-wide settings and node membership -> Option B
Quick Check:
Master node role = Managing cluster-wide settings and node membership [OK]

Quick Trick: Master node controls cluster state and membership [OK]

Common Mistakes:

MISTAKES

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