IndexWriter commits update documents without corresponding delete
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Key: LUCENE-3368
URL: https://issues.apache.org/jira/browse/LUCENE-3368
Project: Lucene - Java
Issue Type: Bug
Components: core/index
Affects Versions: 3.3, 3.2, 3.1, 3.0.3, 3.0.2, 3.0.1, 3.0
Reporter: Simon Willnauer
Fix For: 3.4
while backporting the testcase from LUCENE-3348 I ran into this thread hazard
in the 3.x branch. We actually fixed this issue in LUCENE-3348 for Lucene 4.0
but since DWPT has a slightly different behavior when committing segments I
create a new issue to track this down in 3.x. when we prepare a commit we sync
on IW flush the DW and apply all deletes then release the lock, maybeMerge and
start the commit (IW#startCommit(userdata)). Yet, a new segment could be
flushed via getReader and sneak into the SegementInfos which are cloned in
IW#startCommit instead of in prepareCommit right after the flush.
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