Simplify / understand IndexWriter/DocumentsWriter synchronization [LUCENE-5006]
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legacy-jira-priority:Major
type:bug
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- Java
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Description
The concurrency in IW/DW/BD is terrifying: there are many locks involved, not just intrinsic locks but IW also has fullFlushLock, commitLock, and there are no clear rules about lock order to avoid deadlocks like #6066.
We have to somehow simplify this, and define the allowed concurrent behavior eg when an app calls deleteAll while other threads are indexing.
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Migrated from [LUCENE-5006](https://issues.apache.org/jira/browse/LUCENE-5006) by Michael McCandless (@mikemccand), 1 vote, updated Aug 19 2013
Attachments: [LUCENE-5006.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-5006/LUCENE-5006.patch) (versions: 3)
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