You set index.refresh_interval to "5s" but notice documents are not searchable until after 10 seconds. What could be the issue?

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Elasticsearch - Performance and Scaling

You set index.refresh_interval to "5s" but notice documents are not searchable until after 10 seconds. What could be the issue?

AThe documents are corrupted and cannot be searched.

BElasticsearch refreshes only every 10 seconds by default.

CThe refresh interval setting was not applied correctly or requires index close and reopen.

DThe refresh interval must be set in milliseconds, not seconds.

Step-by-Step Solution

Solution:

Step 1: Check if refresh interval setting applied
Sometimes changes to refresh interval require closing and reopening the index or reloading settings.
Step 2: Understand default behavior and units
Default is 1s, and "5s" is valid; documents should be searchable after 5 seconds if applied.
Final Answer:
The refresh interval setting was not applied correctly or requires index close and reopen. -> Option C
Quick Check:
Setting not applied properly causes delay [OK]

Quick Trick: Apply settings properly; some require index reload [OK]

Common Mistakes:

MISTAKES

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