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Type: Bug
Resolution: Done
Priority: Blocker
Fix Version/s: 3.6.1.Final, 3.7.0.Final, 3.3.x-prod-ip6.0
Affects Version/s: 3.6.0.Final
Component/s: JCR
Labels:
- concurrency

Steps to Reproduce:

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Pull locally the following commit https://github.com/hchiorean/modeshape/commit/4c560ff198a22f4c57793a1df061697b963d6077
and run the ConcurrentNodeLoadTest#shouldCreateLotsOfCustomersUnderSingleHierarchy repeatedly until an exception occurs.

Show
Pull locally the following commit https://github.com/hchiorean/modeshape/commit/4c560ff198a22f4c57793a1df061697b963d6077 and run the ConcurrentNodeLoadTest#shouldCreateLotsOfCustomersUnderSingleHierarchy repeatedly until an exception occurs.
Git Pull Request:
https://github.com/ModeShape/modeshape/pull/1018
Bugzilla References:
https://bugzilla.redhat.com/show_bug.cgi?id=1048953

When running under heavy load with multiple reader/writer threads, the following exception can occur:

java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at org.infinispan.schematic.internal.document.BasicArray$2.next(BasicArray.java:283)
at org.modeshape.jcr.cache.document.DocumentTranslator.childReferencesListFromArray(DocumentTranslator.java:891)
at org.modeshape.jcr.cache.document.DocumentTranslator.getChildReferences(DocumentTranslator.java:849)
at org.modeshape.jcr.cache.document.LazyCachedNode.getChildReferences(LazyCachedNode.java:380)
at org.modeshape.jcr.JcrSession.cachedNode(JcrSession.java:589)
at org.modeshape.jcr.JcrSession.node(JcrSession.java:622)
at org.modeshape.jcr.JcrSession.node(JcrSession.java:641)
at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:820)
at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:803)
at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:127)
at org.modeshape.jcr.ConcurrentNodeLoadTest.addContentToCustomer(CignaLoadTest.java:234)
at org.modeshape.jcr.ConcurrentNodeLoadTest$CustomerModifier.call(CignaLoadTest.java:206)
at org.modeshape.jcr.ConcurrentNodeLoadTest$CustomerModifier.call(CignaLoadTest.java:188)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)

is related to

MODE-2121 LazyCachedNode exception under heavy concurrent load

Closed

Assignee:: Randall Hauch (Inactive)

Reporter:: Horia Chiorean (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2013/12/19 11:53 AM

Updated:: 2016/02/10 3:51 AM

Resolved:: 2014/01/06 4:18 PM

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