intermittant exceptions in TestConcurrentMergeScheduler
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Key: LUCENE-1018
URL: https://issues.apache.org/jira/browse/LUCENE-1018
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.3
Reporter: Michael McCandless
Assignee: Michael McCandless
Priority: Minor
Fix For: 2.3
Attachments: LUCENE-1018.patch
The TestConcurrentMergeScheduler throws intermittant exceptions that
do not result in a test failure.
The exception happens in the "testNoWaitClose()" test, which repeated
tests closing an IndexWriter with "false", meaning abort any
still-running merges. When a merge is aborted it can hit various
exceptions because the files it is reading and/or writing have been
deleted, so we ignore these exceptions.
The bug was just that we were failing to properly check whether the
running merge was actually aborted because of a scoping issue of the
"merge" variable in ConcurrentMergeScheduler. So the exceptions are
actually "harmless". Thanks to Ning for spotting it!
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