How can you configure an ILM policy to ensure indices on warm nodes are deleted after 90 days but remain searchable on cold nodes for 180 days?

hard🚀 Application Q9 of Q15

Elasticsearch - Performance and Scaling

ADelete indices manually after 90 days on warm nodes

BSet warm phase to delete at 90 days and cold phase to retain until 180 days

CSet cold phase to delete at 90 days and warm phase to retain until 180 days

DUse snapshot lifecycle instead of ILM

Step-by-Step Solution

Solution:

Step 1: Understand ILM phase timing
Warm phase can delete indices after 90 days; cold phase can retain longer.
Step 2: Configure phases accordingly
Set warm phase delete at 90 days and cold phase retention until 180 days.
Final Answer:
Set warm phase to delete at 90 days and cold phase to retain until 180 days -> Option B
Quick Check:
Warm delete 90d, cold retain 180d = Set warm phase to delete at 90 days and cold phase to retain until 180 days [OK]

Quick Trick: Configure ILM phases with correct delete timings [OK]

Common Mistakes:

MISTAKES

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