Lucene MMapDirectory and ByteBuffersDirectory Example
Yatin B.1 min read
Date: 2024-06-26
This article compares Apache Lucene's ByteBuffersDirectory and MMapDirectory for indexing and searching. ByteBuffersDirectory uses in-memory Java ByteBuffers, ideal for fast read/write operations but limited by available RAM. MMapDirectory uses memory-mapped files, efficiently managing large indexes by letting the OS handle memory allocation. Choosing between them depends on the size of the index and performance requirements. ByteBuffersDirectory suits smaller, faster operations, while MMapDirectory is better for larger indexes.
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