Update lucene engine to a more recent version

drftpd-ng / drftpd

Distributed Daemon FTP Server (aka DrFTPD)

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Update lucene engine to a more recent version #83

Open ghost opened 6 years ago

ghost commented 6 years ago

LUCENE-3454: Rename IndexWriter.optimize to forceMerge to discourage use of this method since it is horribly costly and rarely justified anymore. MergePolicy.findMergesForOptimize was renamed to findForcedMerges. IndexReader.isOptimized was deprecated. IndexCommit.isOptimized was replaced with getSegmentCount. (Robert Muir, Mike McCandless)

epochyx commented 5 years ago

It would be good indeed to udpate lucene to a more recent version, v8 is out. However, there is no backward compability between v3 and v4 indexes, and v5 introduced another new format. So either we provide the tool to upgrade the indexes, either we'll have to rebuild the indexes entirely. And of course, the API evolved with those major versions.

ghost commented 3 years ago

https://blog.trifork.com/2011/11/21/simon-says-optimize-is-bad-for-you/