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You set index.refresh_interval to -1 to disable automatic refresh during heavy indexing. After indexing, you want to make all data searchable immediately. What is the correct way to do this?

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Elasticsearch - Performance and Scaling

You set index.refresh_interval to -1 to disable automatic refresh during heavy indexing. After indexing, you want to make all data searchable immediately. What is the correct way to do this?

ASet <code>index.refresh_interval</code> back to <code>0</code>

BRun a manual <code>_refresh</code> API call on the index

CRestart the Elasticsearch cluster

DDelete and recreate the index

Step-by-Step Solution

Solution:

Step 1: Understand disabling refresh with -1
Setting refresh_interval to -1 disables automatic refresh, so new data is not searchable until manually refreshed.
Step 2: Identify how to make data searchable immediately
Using the _refresh API triggers an immediate refresh, making all indexed data searchable without restarting or recreating.
Final Answer:
Run a manual _refresh API call on the index -> Option B
Quick Check:
Manual refresh needed when auto refresh disabled [OK]

Quick Trick: Use _refresh API to make data searchable after disabling refresh [OK]

Common Mistakes:

MISTAKES

Setting refresh_interval to 0 instead of calling _refresh
Restarting cluster unnecessarily
Deleting index instead of refreshing

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