On AEM6 SP2, we have been getting below Warning messages which are filling up our error logs. looks like it is due to oak index update.
*WARN* [pool-9-thread-4] org.apache.sling.commons.scheduler.impl.QuartzScheduler No discovery info available. Executing job org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate@335baf55 with name Registered Service.236 and config SINGLE anyway.
adding more logging to org.apache.jackrabbit.oak.plugins.index reveals the following error:
*INFO* [pool-9-thread-5] org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate [async] Index update no longer fails *WARN* [pool-9-thread-4] org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate [async] The index update failed org.apache.jackrabbit.oak.api.CommitFailedException: OakAsync0001: Concurrent update detected at org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate.<clinit>(AsyncIndexUpdate.java:90) at org.apache.jackrabbit.oak.Oak.createContentRepository(Oak.java:516) at com.adobe.granite.repository.impl.SlingRepositoryManager.createRepository(SlingRepositoryManager.java:350) at com.adobe.granite.repository.impl.SlingRepositoryManager.acquireRepository(SlingRepositoryManager.java:221) at org.apache.sling.jcr.base.AbstractSlingRepositoryManager.start(AbstractSlingRepositoryManager.java:304) at com.adobe.granite.repository.impl.SlingRepositoryManager.activate(SlingRepositoryManager.java:198) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:222) at org.apache.felix.scr.impl.helper.BaseMethod.access$500(BaseMethod.java:37) at org.apache.felix.scr.impl.helper.BaseMethod$Resolved.invoke(BaseMethod.java:615) at org.apache.felix.scr.impl.helper.BaseMethod.invoke(BaseMethod.java:499) at org.apache.felix.scr.impl.helper.ActivateMethod.invoke(ActivateMethod.java:295) at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:302) at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:113) at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:832) at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:799) at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:724) at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService(DependencyManager.java:927) at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService(DependencyManager.java:891) at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded(ServiceTracker.java:1492) at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded(ServiceTracker.java:1413) at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.trackAdding(ServiceTracker.java:1222) at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.track(ServiceTracker.java:1158) at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:1444) at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:940) at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:794) at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544) at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4425) at org.apache.felix.framework.Felix.registerService(Felix.java:3429) at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346) at org.apache.sling.commons.threads.impl.Activator.start(Activator.java:55) at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645) at org.apache.felix.framework.Felix.activateBundle(Felix.java:2152) at org.apache.felix.framework.Felix.startBundle(Felix.java:2070) at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1297) at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:304)
