Can't Enable or View Confluence Space Usage Statistic

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Confluence Space Usage Statistic page is not shown. 

The following appears in the atlassian-confluence.log:

2013-11-06 05:17:33,762 ERROR [main] [atlassian.plugin.manager.DefaultPluginManager] enableConfiguredPluginModule There was an error loading the descriptor 'Usage Index Manager' of plugin 'com.atlassian.confluence.ext.usage'. Disabling.
com.atlassian.bonnie.LuceneException: Failed to create searcher for directory:<confluence-home>/index/plugin/usage


Even though the user that run Confluence has enough read/write permission to <confluence-home>/index/plugin/usage directory, accessing Space Usage Statistic screen still throws the error trace above. However, migrating the instance to a new Home Directory solves the issue.


The index directory is corrupted during migration/upgrade or failure when restarting/shutting down Confluence instance.


Last modified on Nov 15, 2018

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