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Locked

Issues of waiting on getting session for resource resolver

Archee_98
New Here ,
Jul 23, 2021 Jul 23, 2021

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Hi, all!

Has anybody faced with issues of waiting on getting session for resource resolver on AEM 6.5.9 (ServicePack 1) ?
 
Thread dumps analysis shows that the issue is related with opening session for resource resolver. A lot of threads wait to lock resources to open resource resolver session on org.apache.jackrabbit.oak.segment.scheduler.LockBasedScheduler.getHeadNodeState method.
 
Such behaviour happens on both types of resource resolvers (see stacktraces below):

1) Using Administrative resource resolver

"0.0.0.0 [1626857833729] GET /content/my-project/en/page.html HTTP/1.1" daemon prio=3 tid=0x2354 nid=0x2354 waiting on condition [0x2354]
   java.lang.Thread.State: TIMED_WAITING
    - waiting on <70369dba> (a java.util.concurrent.Semaphore$FairSync)
    - locked <70369dba> (a java.util.concurrent.Semaphore$FairSync)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1037)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1328)
    at java.util.concurrent.Semaphore.tryAcquire(Semaphore.java:409)
    at org.apache.jackrabbit.oak.segment.scheduler.LockBasedScheduler.getHeadNodeState(LockBasedScheduler.java:219)
    at org.apache.jackrabbit.oak.segment.SegmentNodeStore.getRoot(SegmentNodeStore.java:198)
    at org.apache.jackrabbit.oak.core.MutableRoot.<init>(MutableRoot.java:164)
    at org.apache.jackrabbit.oak.core.ContentSessionImpl.getLatestRoot(ContentSessionImpl.java:105)
    at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.<init>(SessionDelegate.java:140)
    at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl$1.<init>(RepositoryImpl.java:308)
    at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.createSessionDelegate(RepositoryImpl.java:306)
    at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.login(RepositoryImpl.java:283)
    at com.adobe.granite.repository.impl.CRX3RepositoryImpl.login(CRX3RepositoryImpl.java:150)
    at com.adobe.granite.repository.impl.SlingRepositoryImpl$2.run(SlingRepositoryImpl.java:123)
    at com.adobe.granite.repository.impl.SlingRepositoryImpl$2.run(SlingRepositoryImpl.java:115)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:549)
    at com.adobe.granite.repository.impl.SlingRepositoryImpl.createAdministrativeSession(SlingRepositoryImpl.java:115)
    at org.apache.sling.jcr.base.AbstractSlingRepository2.loginAdministrative(AbstractSlingRepository2.java:456)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrProviderStateFactory.createProviderState(JcrProviderStateFactory.java:111)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:304)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:76)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticate(ProviderManager.java:161)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.getOrCreateProvider(ProviderManager.java:87)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticateAll(ProviderManager.java:129)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.createControl(ResourceResolverImpl.java:143)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:104)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:98)
    at org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl.getResourceResolverInternal(CommonResourceResolverFactoryImpl.java:273)
    at org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl.getAdministrativeResourceResolver(CommonResourceResolverFactoryImpl.java:168)
    at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getAdministrativeResourceResolver(ResourceResolverFactoryImpl.java:115)
    at org.myproject.utils.ResourceResolverUtils.getAdminResourceResolver(ResourceResolverUtils.java:75)

2) Using Service Resource Resolver

"0.0.0.0 [1626857837270] GET /content/my-project/en/second-page.html HTTP/1.1" daemon prio=3 tid=0x2316 nid=0x2316 waiting on condition [0x2316]
   java.lang.Thread.State: TIMED_WAITING
    - waiting on <70369dba> (a java.util.concurrent.Semaphore$FairSync)
    - locked <70369dba> (a java.util.concurrent.Semaphore$FairSync)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1037)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1328)
    at java.util.concurrent.Semaphore.tryAcquire(Semaphore.java:409)
    at org.apache.jackrabbit.oak.segment.scheduler.LockBasedScheduler.getHeadNodeState(LockBasedScheduler.java:219)
    at org.apache.jackrabbit.oak.segment.SegmentNodeStore.getRoot(SegmentNodeStore.java:198)
    at org.apache.jackrabbit.oak.core.MutableRoot.<init>(MutableRoot.java:164)
    at org.apache.jackrabbit.oak.core.ContentSessionImpl.getLatestRoot(ContentSessionImpl.java:105)
    at org.apache.jackrabbit.oak.spi.security.authentication.AbstractLoginModule.getRoot(AbstractLoginModule.java:481)
    at org.apache.jackrabbit.oak.security.authentication.user.LoginModuleImpl.getUserAuthentication(LoginModuleImpl.java:250)
    at org.apache.jackrabbit.oak.security.authentication.user.LoginModuleImpl.login(LoginModuleImpl.java:128)
    at org.apache.felix.jaas.boot.ProxyLoginModule.login(ProxyLoginModule.java:52)
    at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755)
    at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195)
    at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682)
    at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
    at javax.security.auth.login.LoginContext.login(LoginContext.java:587)
    at org.apache.jackrabbit.oak.core.ContentRepositoryImpl.login(ContentRepositoryImpl.java:163)
    at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.login(RepositoryImpl.java:282)
    at org.apache.jackrabbit.oak.jcr.repository.RepositoryImpl.login(RepositoryImpl.java:225)
    at org.apache.jackrabbit.oak.jcr.session.SessionImpl.impersonate(SessionImpl.java:275)
    at com.adobe.granite.repository.impl.CRX3SessionImpl.impersonate(CRX3SessionImpl.java:149)
    at org.apache.sling.jcr.base.AbstractSlingRepository2.createServiceSession(AbstractSlingRepository2.java:205)
    at com.adobe.granite.repository.impl.SlingRepositoryImpl.createServiceSession(SlingRepositoryImpl.java:135)
    at org.apache.sling.jcr.base.AbstractSlingRepository2.createServiceSession(AbstractSlingRepository2.java:170)
    at org.apache.sling.jcr.base.AbstractSlingRepository2.loginService(AbstractSlingRepository2.java:383)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrProviderStateFactory.createProviderState(JcrProviderStateFactory.java:115)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:304)
    at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.authenticate(JcrResourceProvider.java:76)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticate(ProviderManager.java:161)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.getOrCreateProvider(ProviderManager.java:87)
    at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticateAll(ProviderManager.java:129)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.createControl(ResourceResolverImpl.java:143)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:104)
    at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.<init>(ResourceResolverImpl.java:98)
    at org.apache.sling.resourceresolver.impl.CommonResourceResolverFactoryImpl.getResourceResolverInternal(CommonResourceResolverFactoryImpl.java:273)
    at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getServiceResourceResolver(ResourceResolverFactoryImpl.java:89)
    at org.myproject.utils.ResourceResolverUtils.getServiceResourceResolver(ResourceResolverUtils.java:55)​ 

 

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correct answers 1 Correct answer

John T Smith Community Expert
Community Expert , Jul 23, 2021 Jul 23, 2021

No support here... You need to go to https://experienceleaguecommunities.adobe.com/

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John T Smith Community Expert
Community Expert ,
Jul 23, 2021 Jul 23, 2021

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No support here... You need to go to https://experienceleaguecommunities.adobe.com/

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