stored field retrieve slow
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Key: LUCENE-2252
URL: https://issues.apache.org/jira/browse/LUCENE-2252
Project: Lucene - Java
Issue Type: Improvement
Components: Store
Affects Versions: 3.0
Reporter: John Wang
IndexReader.document() on a stored field is rather slow. Did a simple
multi-threaded test and profiled it:
40+% time is spent in getting the offset from the index file
30+% time is spent in reading the count (e.g. number of fields to load)
Although I ran it on my lap top where the disk isn't that great, but still
seems to be much room in improvement, e.g. load field index file into memory
(for a 5M doc index, the extra memory footprint is 20MB, peanuts comparing to
other stuff being loaded)
A related note, are there plans to have custom segments as part of flexible
indexing feature?
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