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site/en/userGuide/clustering-compaction.md

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 summary: Clustering compaction is designed to improve search performance and reduce costs in large collections. This guide will help you understand clustering compaction and how this feature can improve search performance.
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+# Clustering Compaction
+
 Clustering compaction is designed to improve search performance and reduce costs in large collections. This guide will help you understand clustering compaction and how this feature can improve search performance.
 
 ## Overview