Use ReadWriteLock in IndexWriter
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Key: LUCENE-2083
URL: https://issues.apache.org/jira/browse/LUCENE-2083
Project: Lucene - Java
Issue Type: Improvement
Components: Index
Affects Versions: 2.9.1
Reporter: Jason Rutherglen
Priority: Minor
Fix For: 3.1
Doing a small patch to make sure things don't break in a big
way, we'll use RRWL replacing some of the global synchronized
locks in IndexWriter.
We'll read lock during operations that for example delete from a
segment, and gwrite lock when we're changing the main segment
infos collection (i.e. we're swapping in new segments after a
merge, or flushing a new segment).
I want to implement this, see if any tests break.
Spin off from LUCENE-2047.
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