Lately, I have started to get this error very frequently on my author & publish instances. It doesn't seem to be because of a code change. I am using CQ 5.6.1. Please advice on what could be the possible reason for this error.
19.03.2014 06:12:42.528 *ERROR* [pool-6-thread-1] org.apache.sling.commons.scheduler.impl.QuartzScheduler Exception during job execution of org.apache.sling.discovery.impl.common.heartbeat.HeartbeatHandler@1ffcdd45 : Could not log in to repository (org.apache.sling.api.resource.LoginException: Unable to login This repository instance has been shut down.) java.lang.RuntimeException: Could not log in to repository (org.apache.sling.api.resource.LoginException: Unable to login This repository instance has been shut down.)
at org.apache.sling.discovery.impl.DiscoveryServiceImpl.doUpdateProperties(DiscoveryServiceImpl.java:380)
at org.apache.sling.discovery.impl.DiscoveryServiceImpl.updateProperties(DiscoveryServiceImpl.java:425)
at org.apache.sling.discovery.impl.common.heartbeat.HeartbeatHandler.issueHeartbeat(HeartbeatHandler.java:193)
at org.apache.sling.discovery.impl.common.heartbeat.HeartbeatHandler.run(HeartbeatHandler.java:150)
at org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:56)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
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:724)
Caused by: org.apache.sling.api.resource.LoginException: Unable to login This repository instance has been shut down.
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getLoginException(JcrResourceProviderFactory.java:268)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getResourceProviderInternal(JcrResourceProviderFactory.java:175)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getAdministrativeResourceProvider(JcrResourceProviderFactory.java:115)
at org.apache.sling.resourceresolver.impl.tree.ResourceProviderFactoryHandler.login(ResourceProviderFactoryHandler.java:162)
at org.apache.sling.resourceresolver.impl.tree.RootResourceProviderEntry.loginToRequiredFactories(RootResourceProviderEntry.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getResourceResolverInternal(ResourceResolverFactoryImpl.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getAdministrativeResourceResolver(ResourceResolverFactoryImpl.java:69)
at org.apache.sling.discovery.impl.DiscoveryServiceImpl.doUpdateProperties(DiscoveryServiceImpl.java:341)
... 8 more
Caused by: javax.jcr.RepositoryException: This repository instance has been shut down.
at org.apache.jackrabbit.core.RepositoryImpl.sanityCheck(RepositoryImpl.java:601)
at org.apache.jackrabbit.core.RepositoryImpl.getWorkspaceInfo(RepositoryImpl.java:673)
at org.apache.jackrabbit.core.RepositoryImpl.createSession(RepositoryImpl.java:958)
at org.apache.jackrabbit.core.SessionFactory.createAdminSession(SessionFactory.java:42)
at com.day.crx.sling.server.impl.SlingRepositoryWrapper.loginAdministrative(SlingRepositoryWrapper.java:76)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getResourceProviderInternal(JcrResourceProviderFactory.java:136)
... 14 more
19.03.2014 06:12:57.527 *ERROR* [pool-6-thread-5] org.apache.sling.discovery.impl.DiscoveryServiceImpl handleEvent: could not log in administratively: org.apache.sling.api.resource.LoginException: Unable to login This repository instance has been shut down. org.apache.sling.api.resource.LoginException: Unable to login This repository instance has been shut down.
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getLoginException(JcrResourceProviderFactory.java:268)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getResourceProviderInternal(JcrResourceProviderFactory.java:175)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getAdministrativeResourceProvider(JcrResourceProviderFactory.java:115)
at org.apache.sling.resourceresolver.impl.tree.ResourceProviderFactoryHandler.login(ResourceProviderFactoryHandler.java:162)
at org.apache.sling.resourceresolver.impl.tree.RootResourceProviderEntry.loginToRequiredFactories(RootResourceProviderEntry.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getResourceResolverInternal(ResourceResolverFactoryImpl.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getAdministrativeResourceResolver(ResourceResolverFactoryImpl.java:69)
at org.apache.sling.discovery.impl.DiscoveryServiceImpl.doUpdateProperties(DiscoveryServiceImpl.java:341)
at org.apache.sling.discovery.impl.DiscoveryServiceImpl.updateProperties(DiscoveryServiceImpl.java:425)
at org.apache.sling.discovery.impl.common.heartbeat.HeartbeatHandler.issueHeartbeat(HeartbeatHandler.java:193)
at org.apache.sling.discovery.impl.common.heartbeat.HeartbeatHandler.run(HeartbeatHandler.java:150)
at org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:56)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
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:724)
