[LUCENE-3209] Memory codec

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Michael McCandless
• Created: 16/Jun/11 23:06
• Updated: 28/Aug/22 12:50
• Resolved: 18/Jun/11 15:46

Description

This codec stores all terms/postings in RAM. It uses an
FST<BytesRef>. This is useful on a primary key field to ensure
lookups don't need to hit disk, to keep NRT reopen time fast even
under IO contention.

Issue Links

• relates to: LUCENE-3069 Lucene should have an entirely memory resident term dictionary