[Solved] What is wrong with this command to update replicas?PUT /my_index/_settings { "number_of_replicas": "two" } | Elasticsearch

Elasticsearch - Performance and Scaling

What is wrong with this command to update replicas?
PUT /my_index/_settings { "number_of_replicas": "two" }

AThe HTTP method should be POST, not PUT

BThe number_of_replicas value must be an integer, not a string

CThe endpoint is incorrect; it should be /_replicas

DThe JSON body is missing a root key

Step-by-Step Solution

Solution:

Step 1: Check data type of number_of_replicas
It must be a number (integer), not a string like "two".
Step 2: Verify other parts of the command
PUT method and endpoint are correct; JSON body format is valid.
Final Answer:
The number_of_replicas value must be an integer, not a string -> Option B
Quick Check:
Replica count must be integer [OK]

Quick Trick: Replica count must be a number, not text [OK]

Common Mistakes:

MISTAKES

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What is wrong with this command to update replicas?