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http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-1019?pa...
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Sanne Grinovero commented on HSEARCH-1019:
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brief update: this is being more complex than expected, we have indeed some commit
operations which should be omitted, but not so much and solving it I've improved
performance by only 40%; there is a mayor regression on the cost of initializing a new
Analyzer in Lucene as it's doing some class consistency check via reflection; usually
these check are guarded by the assert keyword but not in this case. I'm looking if we
can work around it at least in the MassIndexer, or if it's no longer the case in
Lucene 3.5 and if we need to patch Lucene.
Profile mass indexer to reduce number of index commits
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Key: HSEARCH-1019
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-1019
Project: Hibernate Search
Issue Type: Improvement
Components: massindexer
Affects Versions: 4.0.0.Final
Reporter: Hardy Ferentschik
Assignee: Sanne Grinovero
Priority: Blocker
Fix For: 4.1
We need to profile the new mass indexer design and try to reduce the number of index
commits. Performance of the filesystem based directory declined to a bug fix in Lucene
(
https://issues.apache.org/jira/browse/LUCENE-3418). Trying to reduce the amount of index
commits (and hence fsync calls) might alleviate the performance loss.
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