[ https://issues.apache.org/jira/browse/LUCENE-7365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Woodward updated LUCENE-7365: ---------------------------------- Attachment: LUCENE-7365-query.patch This is an alternative idea, a ForceNoBulkScoringQuery implementation that wraps an existing query and ensures use of the DefaultBulkScorer. > 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 > Attachments: LUCENE-7365-query.patch, LUCENE-7365.patch, > LUCENE-7365.patch > > > 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: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org