Greg Miller created LUCENE-10565:
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Summary: Can we "warm" SSDV ordinal maps on index reopen?
Key: LUCENE-10565
URL: https://issues.apache.org/jira/browse/LUCENE-10565
Project: Lucene - Core
Issue Type: Improvement
Components: modules/facet
Reporter: Greg Miller
As [~rcmuir] and [~jpountz] pointed out in a [discussion about facet
benchmarks|https://github.com/mikemccand/luceneutil/issues/169], we lazily
build ordinal maps needed for SSDV faceting the first time we need them for a
given index field instead of eagerly building them when the index is reopened.
This puts an expensive penalty on the search path whenever an index is
reloaded. Let's see if we can eagerly build these maps as part of reopening the
index so the user doesn't get hit with this at search time.
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