Unable to Start Confluence Due to I/O errors during LOB access


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Starting Confluence fails. The following appears in the atlassian-confluence.log:

2011-04-08 13:38:29,332 ERROR [main] [atlassian.confluence.event.ConfluenceEventManager] publishEvent An exception was encountered while processing the event: com.atlassian.confluence.event.events.admin.ConfluenceReadyEvent[source=com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager@1f34137c]
org.springframework.orm.hibernate.HibernateSystemException: I/O errors during LOB access; nested exception is net.sf.hibernate.HibernateException: I/O errors during LOB access
Caused by: net.sf.hibernate.HibernateException: I/O errors during LOB access


The persistance library is trying to spool a database CLOB object and failing because it can't write to disk.


Check that:

  1. Check to see if the temporary directory (set using java.io.tmpdir or System_Temp) has enough disk space.
  2. Ensure that the user running Confluence can write the temporary directory.
  3. Try setting -Djava.io.tmpdir=<a_known_path> in your Confluence system property
  4. If you are running Confluence as a Windows Service and see this line in the stacktrace:
Caused by: java.io.IOException: The system cannot find the path specified
  • Check your settings within the JAVA_OPTS variable. Each entry needs to be on a new line. Also check to make sure there aren't any trailing spaces following -Djava.io.tmpdir=<path>. If there are, it will be interpreted as part of the directory path.
Last modified on Mar 30, 2016


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