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Confluence won't start after plugin update

I updated a number of plugins and one of them froze Confluence. I have tried restarting the service a few times even in safe mode and even rebooted the server but no much luck. I am getting three errors that I have never seen before and Googling these is not yielding any fruits. Any assistance on these three errors?

First 2 are from the confluence log, last one is from catalina startup

2019-11-25 11:04:39,697 ERROR [localhost-startStop-1] [atlassian.confluence.event.ConfluenceEventDispatcher] run There was an exception thrown trying to dispatch event [ThemeConfigurationSavedEvent [saved=ThemeConfiguration [configurationSchemaVersion=6, intranetName=]]] from the invoker [SingleParameterMethodListenerInvoker{method=public void net.seibertmedia.confluence.plugins.theme.logosync.control.LogoSyncObserver.onThemeConfigurationSavedEvent(net.seibertmedia.confluence.plugins.theme.configuration.entity.ThemeConfigurationSavedEvent), listener=net.seibertmedia.confluence.plugins.theme.logosync.control.LogoSyncObserver@cb49802} (timed)]java.lang.RuntimeException: Unable to resolve owner of loading collection [[com.atlassian.confluence.core.ContentEntityObject.bodyContents#360453]] for second level caching. Listener: net.seibertmedia.confluence.plugins.theme.logosync.control.LogoSyncObserver event: net.seibertmedia.confluence.plugins.theme.configuration.entity.ThemeConfigurationSavedEvent

 

2019-11-25 11:04:55,941 ERROR [lifecycle:thread-1] [sal.confluence.lifecycle.TenantAwareLifecycleManager] triggerLifecycleAsTenant Unable to start component: com.atlassian.sal.confluence.lifecycle.MeasuringPluginUpgradeManager
com.atlassian.plugin.util.Assertions$NullArgumentException: Plugin key  should not be null!
        at com.atlassian.plugin.util.Assertions.notNull(Assertions.java:9)
        at com.atlassian.plugin.manager.ProductPluginAccessorBase.getPlugin(ProductPluginAccessorBase.java:146)
        at com.atlassian.plugin.manager.ForwardingPluginAccessor.getPlugin(ForwardingPluginAccessor.java:70)
        at com.atlassian.plugin.manager.EnabledModuleCachingPluginAccessor.getPlugin(EnabledModuleCachingPluginAccessor.java:39)
        at com.atlassian.plugin.manager.ForwardingPluginAccessor.getPlugin(ForwardingPluginAccessor.java:70)

 

 

2019-11-25 11:02:14,227 INFO [localhost-startStop-1] [com.atlassian.c onfluence.lifecycle] contextInitialized Starting Confluence 6.15.2 [b uild 8100 based on commit hash 4410012ac87e845516b70bc69b6f7a893eabaa 5a] - synchrony version 2.1.0-master-9d112c9d
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Warning: validation was turned on but an org.xml.sax.ErrorHandler was not
set, which is probably not what is desired. Parser will use a default
ErrorHandler to print the first 10 errors. Please call
the 'setErrorHandler' method to fix this.
Error: URI=null Line=1: Document is invalid: no grammar found.
Error: URI=null Line=1: Document root element "atlassian-plugin", must match DOCTYPE root "null".

1 answer

Hi Paul,

if it's a production instance, I'd recommend contacting Atlassian Support

Perhaps you could try clearing the plugin cache, have a look at Confluence Startup Problems Troubleshooting as well.

Thanks for the tip, I had cleared out the cache folders as the first solution. However, I have managed to get it back up and running. The problem is that it took about 30 minutes to start up.

Glad you're up and running again, Paul. That sure is a long boot time, might be worth investigating it further.

Have a nice day.

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