Errors in error.log on both Author and Publish Instances during startup

Description

Issue/Symptoms

Customer noticed several errors in error.log on both Author and Publish Instances:

- Author error.log:

*ERROR*  aem-api-metrics FrameworkEvent ERROR (org.apache.felix.log.LogException: org.osgi.framework.ServiceException: ServiceFactory.getService() resulted in a cycle.)

org.apache.felix.log.LogException: org.osgi.framework.ServiceException: ServiceFactory.getService() resulted in a cycle.

*ERROR*  org.apache.sling.engine.impl.SlingHttpContext handleSecurity: AuthenticationSupport service missing. Cannot authenticate request.

*ERROR*  org.apache.sling.engine.impl.SlingHttpContext handleSecurity: Possible reason is missing Repository service. Check AuthenticationSupport dependencies.

- Publisher error.log

*ERROR*  ROOT bundle org.apache.felix.scr:2.1.30 (32) Circular reference detected trying to get service com.adobe.cq.wcm.translation.impl.sync.LanguageCopySynchronizer

Environment

  • AEM as a Cloud Service - Sites

Resolution

Root Cause:

Analyzing the error logs provided by the customer, it was noticed that at the time the errors appeared, the instances were still in “Startup” mode, not all bundles being started - e.g. “StartupListenerTracker Startup progress: 83% (bundles 489/587)” . Therefore, the errors occurred as not all bundles were started.

During a restart, or anything that causes a restart such as installing or reinstalling bundles or packages that trigger a re-register of OSGi bundles, this kind of exceptions can be common.

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If the errors are noticed after an instance is fully started, all bundles being active, please open a ticket with Adobe Support for further investigations.

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