[SOLR-12366] Avoid SlowAtomicReader.getLiveDocs -- it's slow

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.4
• Component/s: search
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 16/May/18 21:30
• Updated: 16/Oct/19 18:17
• Resolved: 31/May/18 15:04

Description

SlowAtomicReader is of course slow, and it's getLiveDocs (based on MultiBits) is slow as it uses a binary search for each lookup.  There are various places in Solr that use SolrIndexSearcher.getSlowAtomicReader and then get the liveDocs.  Most of these places ought to work with SolrIndexSearcher's getLiveDocs method.

Issue Links

• is related to: SOLR-13851 SolrIndexSearcher.getFirstMatch trips assertion if multiple matches