[LUCENE-5476] Facet sampling

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.8, 6.0
• Lucene Fields: New, Patch Available
• Assignee: Shai Erera
• Reporter: Rob Audenaerde
• Created: 27/Feb/14 09:59
• Updated: 28/Aug/22 14:01
• Resolved: 20/Mar/14 11:36

Description

With LUCENE-5339 facet sampling disappeared.

When trying to display facet counts on large datasets (>10M documents) counting facets is rather expensive, as all the hits are collected and processed.

Sampling greatly reduced this and thus provided a nice speedup. Could it be brought back?