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https://issues.apache.org/jira/browse/LUCENE-3520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13128290#comment-13128290
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Simon Willnauer commented on LUCENE-3520:
-----------------------------------------
bq.It should still be opening an NRT reader: if you have an NRT reader (which
we do here) and pass that to IR.openIfChanged, you'll always get back a new NRT
reader (this is the contract of IR.openIfChanged).
hmm, however the signature of openIfChanged(IR, boolean) actually referes to
openIfChanged(IndexReader oldReader, boolean readonly) which seems confusing
when you pass applyDeletes to it, no?
> If the NRT reader hasn't changed then IndexReader.openIfChanged should return
> null
> ----------------------------------------------------------------------------------
>
> Key: LUCENE-3520
> URL: https://issues.apache.org/jira/browse/LUCENE-3520
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/index
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 3.5, 4.0
>
> Attachments: LUCENE-3520.patch
>
>
> I hit a failure in TestSearcherManager (NOTE: doesn't always fail):
> {noformat}
> ant test -Dtestcase=TestSearcherManager -Dtestmethod=testSearcherManager
> -Dtests.seed=459ac99a4256789c:-29b8a7f52497c3b4:145ae632ae9e1ecf
> {noformat}
> It was tripping the assert inside SearcherLifetimeManager.record,
> because two different IndexSearcher instances had different IR
> instances sharing the same version. This was happening because
> IW.getReader always returns a new reader even when there are no
> changes. I think we should fix that...
> Separately I found a deadlock in
> TestSearcherManager.testIntermediateClose, if the test gets
> SerialMergeScheduler and needs to merge during the second commit.
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