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https://issues.apache.org/jira/browse/OAK-6635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16158336#comment-16158336
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Chetan Mehrotra commented on OAK-6635:
--------------------------------------
With OAK-6635 at least it would be ensured that any exception here does not
prevent the lock from being released
> IndexReader closed exception in DocumentQueue
> ---------------------------------------------
>
> Key: OAK-6635
> URL: https://issues.apache.org/jira/browse/OAK-6635
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: lucene
> Affects Versions: 1.6.5
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Priority: Blocker
> Labels: candidate_oak_1_6
> Fix For: 1.8
>
>
> Even after fix for OAK-6572 following exception is being seen in some cases
> {noformat}
> 05.09.2017 23:06:15.489 *ERROR* [oak-lucene-3]
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue Uncaught
> exception
> org.apache.lucene.store.AlreadyClosedException: this IndexReader is closed
> at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:233)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.IndexNodeManager.decrementSearcherUsageCount(IndexNodeManager.java:255)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.IndexNodeManager.access$400(IndexNodeManager.java:52)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.IndexNodeManager$IndexNodeImpl.release(IndexNodeManager.java:286)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue.processDocs(DocumentQueue.java:275)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue.addDocsToIndex(DocumentQueue.java:214)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue.access$500(DocumentQueue.java:55)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue$2$1.call(DocumentQueue.java:121)
> at
> org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue$2$1.call(DocumentQueue.java:96)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> This also causes the lock to be not released prevent async index from further
> updates
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