Tommaso Teofili created OAK-6412:
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Summary: Consider upgrading to newer Lucene versions
Key: OAK-6412
URL: https://issues.apache.org/jira/browse/OAK-6412
Project: Jackrabbit Oak
Issue Type: Improvement
Components: lucene
Reporter: Tommaso Teofili
Assignee: Tommaso Teofili
Fix For: 1.8
An year ago I had started prototyping the upgrade to Lucene 5 [1], in the
meantime version 6 (and 7 soon) has come out.
I think it'd be very nice to upgrade Lucene version to the latest, this would
give us improvements in space consumption and runtime performance.
In case we want to upgrade to 6.0 or later we need to consider upgrade
scenarios because Lucene Codecs are backward compatible with the previous major
release, so Lucene 6 can read Lucene 5 but not Lucene 4.x (4.7 in our case)
therefore we would need to detect that when reading an index and trigger and
reindex using the new format.
Related to that there's also a patch to upgrade Solr index to version 5 (see
OAK-4318).
[1] : https://github.com/tteofili/jackrabbit-oak/tree/lucene5
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