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https://issues.apache.org/jira/browse/SLING-6313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15903268#comment-15903268
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Konrad Windszus commented on SLING-6313:
----------------------------------------
This is a chicken/egg problem, right? Right now we don't have any alias
support, and to profit from it for upgrades we would need to have it in the
last and the next Sling version. If we wait for OSGi R7 we will solve that not
for the upgrade to OSGi R7 then, but rather for the upgrade afterwards.
Therefore I would strongly recommend to reimplement the old alias handling, as
this is definitely an improvement and would allow to easily reinstall
everything (see SLING-5745).
> Sling installer can duplicate factory configurations if an invalid
> RegisteredResourceList.ser is found
> ------------------------------------------------------------------------------------------------------
>
> Key: SLING-6313
> URL: https://issues.apache.org/jira/browse/SLING-6313
> Project: Sling
> Issue Type: Bug
> Components: Installer
> Reporter: Robert Munteanu
> Assignee: Robert Munteanu
> Fix For: Installer Core 3.8.8
>
> Attachments: SLING-6313-0.diff
>
>
> Steps to reproduce, inside `launchpad/builder`
> {noformat}
> mvn clean package
> java -jar target/org.apache.sling.launchpad-9-SNAPSHOT.jar
> # wait for Sling to start up properly, stop it with CTRL-C
> truncate --size=-1 sling/installer/RegisteredResourceList.ser
> java -jar target/org.apache.sling.launchpad-9-SNAPSHOT.jar
> # wait for Sling to start up properly, stop it with CTRL-C
> java -jar target/org.apache.sling.launchpad-9-SNAPSHOT.jar
> {noformat}
> The following exceptions are logged in the last run:
> {noformat}21.11.2016 14:32:26.538 *ERROR* [CM Configuration Updater
> (ManagedServiceFactory Update:
> factoryPid=[org.apache.sling.commons.log.LogManager.factory.config])]
> org.apache.felix.configadmin Service
> [org.apache.felix.cm.ConfigurationAdmin,28,
> [org.osgi.service.cm.ConfigurationAdmin]]
> [org.osgi.service.cm.ManagedServiceFactory, id=19,
> bundle=8/slinginstall:org.apache.sling.commons.log-5.0.1-SNAPSHOT.jar]:
> Updating property org.apache.sling.commons.log.names of configuration
> org.apache.sling.commons.log.LogManager.factory.config.b4cf7982-9af0-40a1-b720-3e83a9f9e7f9
> caused a problem: Category log.request already defined by configuration
> org.apache.sling.commons.log.LogManager.factory.config.b4cf7982-9af0-40a1-b720-3e83a9f9e7f9
> (org.osgi.service.cm.ConfigurationException:
> org.apache.sling.commons.log.names : Category log.request already defined by
> configuration
> org.apache.sling.commons.log.LogManager.factory.config.b4cf7982-9af0-40a1-b720-3e83a9f9e7f9)
> org.osgi.service.cm.ConfigurationException:
> org.apache.sling.commons.log.names : Category log.request already defined by
> configuration
> org.apache.sling.commons.log.LogManager.factory.config.b4cf7982-9af0-40a1-b720-3e83a9f9e7f9
> at
> org.apache.sling.commons.log.logback.internal.config.LoggerManagedServiceFactory.updated(LoggerManagedServiceFactory.java:36)
> at
> org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.updated(ManagedServiceFactoryTracker.java:159)
> at
> org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker.provideConfiguration(ManagedServiceFactoryTracker.java:93)
> at
> org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceFactoryUpdate.provide(ConfigurationManager.java:1611)
> at
> org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceFactoryUpdate.run(ConfigurationManager.java:1554)
> at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141)
> at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109)
> at java.lang.Thread.run(Thread.java:745)
> Caused by:
> org.apache.sling.commons.log.logback.internal.config.ConfigurationException:
> at
> org.apache.sling.commons.log.logback.internal.LogConfigManager.updateLoggerConfiguration(LogConfigManager.java:533)
> at
> org.apache.sling.commons.log.logback.internal.config.LoggerManagedServiceFactory.updated(LoggerManagedServiceFactory.java:34)
> ... 7 common frames omitted{noformat}
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