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https://issues.apache.org/jira/browse/LUCENE-5407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878032#comment-13878032
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Luis Filipe Nassif commented on LUCENE-5407:
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Actually the pre-processing approach could be done, but Tika does text and
embedded doc extraction at the same time and we don't want to repeat part of
the processing.
Beside this, I expected Lucene should work in this "thread-chaining" setup.
> Deadlock? while indexing reader fields in cascaded threads
> ----------------------------------------------------------
>
> Key: LUCENE-5407
> URL: https://issues.apache.org/jira/browse/LUCENE-5407
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Affects Versions: 4.6
> Environment: Windows 7 64 bits, JRE 1.7.0_25 64 bits
> Reporter: Luis Filipe Nassif
> Attachments: Test.java, thread_dump.txt
>
>
> Apparently I found a deadlock problem with IndexWriter using Reader Fields in
> a cascaded thread design to add documents (I am working on an application
> integrating Tika, which has the capability to add embedded documents to the
> index as independent documents as they are found). The attached code
> illustrates the problem. Sometimes it stops processing, at least one of the
> threads remains in WAITING state. It must be executed no more than 5 times in
> my environment to trigger the problem.
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