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https://issues.apache.org/jira/browse/SLING-4882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14628612#comment-14628612
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Antonio Sanso commented on SLING-4882:
--------------------------------------
bq. BTW, it's using an admin session, not a service user.
[~alexander.klimetschek] same as the original resolver. We still did not
migrate this module to service user
> Shared session usage in Sling MapEntries causes contention
> ----------------------------------------------------------
>
> Key: SLING-4882
> URL: https://issues.apache.org/jira/browse/SLING-4882
> Project: Sling
> Issue Type: Bug
> Components: ResourceResolver
> Reporter: Antonio Sanso
> Assignee: Antonio Sanso
> Fix For: Resource Resolver 1.2.8
>
> Attachments: SLING-4882-patch.txt, SLING-4882-patchv2.txt
>
>
> {code:none}
> "pool-7-thread-103" prio=10 tid=0x00007fede006c000 nid=0x6db8 waiting on
> condition [0x00007fecdbb7a000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00000005063f5b00> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
> at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
> at
> org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate$WarningLock.lock(SessionDelegate.java:744)
> at
> org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate$WarningLock.lock(SessionDelegate.java:775)
> at
> org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.perform(SessionDelegate.java:271)
> at
> org.apache.jackrabbit.oak.jcr.session.SessionImpl.perform(SessionImpl.java:127)
> at
> org.apache.jackrabbit.oak.jcr.session.SessionImpl.refresh(SessionImpl.java:430)
> at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.sling.jcr.base.SessionProxyHandler$SessionProxyInvocationHandler.invoke(SessionProxyHandler.java:113)
> at com.sun.proxy.$Proxy7.refresh(Unknown Source)
> at
> org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.refresh(JcrResourceProvider.java:545)
> at
> org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.refresh(ResourceResolverContext.java:192)
> at
> org.apache.sling.resourceresolver.impl.ResourceResolverImpl.refresh(ResourceResolverImpl.java:1186)
> at
> org.apache.sling.resourceresolver.impl.mapping.MapEntries.doAddAttributes(MapEntries.java:321)
> at
> org.apache.sling.resourceresolver.impl.mapping.MapEntries.handleEvent(MapEntries.java:776)
> at
> org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:412)
> at
> org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:118)
> at
> org.apache.felix.eventadmin.impl.handler.EventAdminImpl.sendEvent(EventAdminImpl.java:114)
> at
> org.apache.felix.eventadmin.impl.security.EventAdminSecurityDecorator.sendEvent(EventAdminSecurityDecorator.java:96)
> at
> org.apache.sling.jcr.resource.internal.OakResourceListener.sendOsgiEvent(OakResourceListener.java:243)
> at
> org.apache.sling.jcr.resource.internal.OakResourceListener.added(OakResourceListener.java:109)
> at
> org.apache.jackrabbit.oak.plugins.observation.NodeObserver$NodeEventHandler.leave(NodeObserver.java:209)
> at
> org.apache.jackrabbit.oak.plugins.observation.FilteredHandler.leave(FilteredHandler.java:51)
> at
> org.apache.jackrabbit.oak.plugins.observation.EventGenerator$Continuation.run(EventGenerator.java:182)
> at
> org.apache.jackrabbit.oak.plugins.observation.EventGenerator.generate(EventGenerator.java:124)
> at
> org.apache.jackrabbit.oak.plugins.observation.NodeObserver.contentChanged(NodeObserver.java:163)
> at
> org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:124)
> at
> org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:118)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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