Add doc for allowing -1 index.search.idle.after - #12992
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Signed-off-by: Natprawee Pattayawij <tonklalor2544@gmail.com>
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August 28, 2026 14:01
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Description
Currently, OpenSearch sets index.search.idle.after to 30s by default. To disable idle time, there is only one way, to set index.refresh_interval explicitly. However, index.refresh_interval is 1s by default, and we did not want to change it. It is not a good convention to set one variable explicitly for a different behavior (disabling idle).
-1 is a standard convention to disable something, so this PR is to allow -1 for index.search.idle.after in order to disable idle time.
Related to opensearch-project/OpenSearch#22873
Issues Resolved
Closes opensearch-project/OpenSearch#9707 (comment)
Version
List the OpenSearch version to which this PR applies, e.g. 2.14, 2.12--2.14, or all.
Frontend features
If you're submitting documentation for an OpenSearch Dashboards feature, add a video that shows how a user will interact with the UI step by step. A voiceover is optional.
Checklist
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