[Solved] Which of the following is the correct JSON syntax to define a rollover action in an ILM policy? - Ans: {"actions": {"rollover": {"max_size": "50gb", "max_age": "30d"}}} | Elasticsearch

Elasticsearch - Index Management

Which of the following is the correct JSON syntax to define a rollover action in an ILM policy?

A{"rollover": {"max_size": "50gb", "max_age": "30d"}}

B{"actions": {"rollover": {"max_size": "50gb", "max_age": "30d"}}}

C{"rollover": {"max_size": 50, "max_age": 30}}

D{"rollover": {"size": "50gb", "age": "30d"}}

Step-by-Step Solution

Solution:

Step 1: Understand ILM rollover action structure
The rollover action must be inside an "actions" object with correct keys like "max_size" and "max_age" as strings with units.
Step 2: Check each option's syntax
{"actions": {"rollover": {"max_size": "50gb", "max_age": "30d"}}} correctly wraps rollover inside actions and uses proper key names and value formats.
Final Answer:
{"actions": {"rollover": {"max_size": "50gb", "max_age": "30d"}}} -> Option B
Quick Check:
Rollover action syntax = actions wrapper + correct keys [OK]

Quick Trick: Rollover must be inside 'actions' with correct keys [OK]

Common Mistakes:

MISTAKES

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Which of the following is the correct JSON syntax to define a rollover action in an ILM policy?