David Smiley created SOLR-15259:
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Summary: Lower default hl.fragAlignRatio
Key: SOLR-15259
URL: https://issues.apache.org/jira/browse/SOLR-15259
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Components: highlighter
Reporter: David Smiley
The {{hl.fragAlignRatio}} (for Unified Highlighter) has a large impact on
performance. The default of 0.5 tries to place the highlighted words in the
middle of the fragment. Lowering to somewhere between 0.20 and 0.33 can help a
lot -- see SOLR-15246 and previously in
https://lists.apache.org/thread.html/r2e44d290eac9edfa61ed9eced0d9f01a7bd1cbdf910344b2aa2368b8%40%3Csolr-user.lucene.apache.org%3E
Lowering to 0.33 (to thus first third) is a better balance.
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