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Jörg Hoh commented on SLING-6044: --------------------------------- Of course it would be great to have a better error message here; but documenting it in the first place should be sufficient from my point of view. > Conflicting LogManager and LogWriter if using the same logfile > -------------------------------------------------------------- > > Key: SLING-6044 > URL: https://issues.apache.org/jira/browse/SLING-6044 > Project: Sling > Issue Type: Improvement > Components: Commons > Affects Versions: Commons Log 4.0.2 > Reporter: Jörg Hoh > Assignee: Chetan Mehrotra > Fix For: Commons Log 5.0.4 > > Attachments: SLING-6044-multiple-loggers-writers.jpg > > > When you have a logmanager and a logwriter pointing to the same file, you get > an exception like this: > {panel} > 07.09.2016 17:33:31.126 *ERROR* [] CM Configuration Updater (Update: > pid=org.apache.sling.commons.log.LogManager) org.apache.felix.configadmin > Service [org.apache.felix.cm.ConfigurationAdmin,9, > [org.osgi.service.cm.ConfigurationAdmin]] > [org.osgi.service.cm.ManagedService, id=10, > bundle=7/slinginstall:c:\java\IBM\LibertyProfile\usr\servers\aem-1\sling\_\launchpad\startup\1\org.apache.sling.commons.log-4.0.0.jar]: > Updating property org.apache.sling.commons.log.file of configuration > org.apache.sling.commons.log.LogManager caused a problem: LogFile > C:\java\IBM\LibertyProfile\usr\servers\aem-1\aemlogs\logs\error.log already > configured by configuration > org.apache.sling.commons.log.LogManager.factory.writer.8402a603-bdef-4404-9ff1-0e0f592578af > (org.osgi.service.cm.ConfigurationException: > org.apache.sling.commons.log.file : LogFile > C:\java\IBM\LibertyProfile\usr\servers\aem-1\aemlogs\logs\error.log already > configured by configuration > org.apache.sling.commons.log.LogManager.factory.writer.8402a603-bdef-4404-9ff1-0e0f592578af) > > org.osgi.service.cm.ConfigurationException: org.apache.sling.commons.log.file > : LogFile C:\java\IBM\LibertyProfile\usr\servers\aem-1\aemlogs\logs\error.log > already configured by configuration > org.apache.sling.commons.log.LogManager.factory.writer.8402a603-bdef-4404-9ff1-0e0f592578af > > at > org.apache.sling.commons.log.logback.internal.config.GlobalConfigurator.updated(GlobalConfigurator.java:32) > at > org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:148) > > at > org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:81) > > at > org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1744) > > at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:103) > at java.lang.Thread.run(Thread.java:744) > Caused by: > org.apache.sling.commons.log.logback.internal.config.ConfigurationException: > at > org.apache.sling.commons.log.logback.internal.LogConfigManager.updateLogWriter(LogConfigManager.java:398) > > at > org.apache.sling.commons.log.logback.internal.LogConfigManager.updateGlobalConfiguration(LogConfigManager.java:327) > > at > org.apache.sling.commons.log.logback.internal.config.GlobalConfigurator.updated(GlobalConfigurator.java:30) > > ... 5 common frames omitted > {panel} > Obviously the Logmanager internally provides a Logwriter, so these conflict. > This should be documented. -- This message was sent by Atlassian JIRA (v6.4.14#64029)