[LUCENE-4515] Make MemoryIndex more memory efficient

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0, 4.1, 6.0
• Fix Version/s: 4.1, 6.0
• Component/s: modules/other
• Lucene Fields: New, Patch Available
• Assignee: Simon Willnauer
• Reporter: Simon Willnauer
• Created: 31/Oct/12 11:48
• Updated: 28/Aug/22 13:31
• Resolved: 02/Nov/12 12:50

Description

Currently MemoryIndex uses BytesRef objects to represent terms and holds an int[] per term per field to represent postings. For highlighting this creates a ton of objects for each search that 1. need to be GCed and 2. can't be reused.

Issue Links

• incorporates: LUCENE-3865 MemoryIndex does not allow user to add multiple values for a single field name