Simon Willnauer created LUCENE-4538:
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Summary: Cache DocValues DirecSource
Key: LUCENE-4538
URL: https://issues.apache.org/jira/browse/LUCENE-4538
Project: Lucene - Core
Issue Type: Improvement
Components: core/codecs
Affects Versions: 4.0
Reporter: Simon Willnauer
Fix For: 4.1, 5.0
Currently the user need to make sure that a direct source is not shared between
threads and each time someone calls getDirectSource we create a new source
which has a reasonable overhead. We can certainly reduce the overhead (maybe
different issue) but it should be easier for the user to get a direct source
and handle it. More than that is should be consistent with getSource /
loadSource.
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