Deadlock in IndexWriter
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Key: LUCENE-2783
URL: https://issues.apache.org/jira/browse/LUCENE-2783
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.9.3
Environment: ALL
Reporter: Christoph Goller
Fix For: 2.9.4
If autoCommit == true a merge usually triggers a commit. A commit
(prepareCommit) can trigger a merge vi the flush method. There is a
synchronization mechanism for commit (commitLock) and a separate
synchronization mechanism for merging (ConcurrentMergeScheduler.wait). If one
thread holds the commitLock monitor and another one holds the
ConcurrentMergeScheduler monitor we have a deadlock.
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