Alan Woodward created LUCENE-7365:
-------------------------------------
Summary: Don't use BooleanScorer for small segments
Key: LUCENE-7365
URL: https://issues.apache.org/jira/browse/LUCENE-7365
Project: Lucene - Core
Issue Type: Improvement
Reporter: Alan Woodward
Assignee: Alan Woodward
If a BooleanQuery meets certain criteria (only contains disjunctions, is likely
to match large numbers of docs) then we use a BooleanScorer to score groups of
1024 docs at a time. This allocates arrays of 1024 Bucket objects up-front.
On very small segments (for example, a MemoryIndex) this is very wasteful of
memory, particularly if the query is large or deeply-nested. We should avoid
using a bulk scorer on these segments.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
