We have Confluence 4.0 and it's using MySql-database. Once for a while it crashes and we must reboot it. Sometimes when shutting it down fails and trying to start again it says:
Error occurred during initialization of VM Could not reserve enough space for object heap
But that is maybe a different issue. When checking the logs I find error messages:
SEVERE: Exception Processing ErrorPage[errorCode=500, location=/500page.jsp] org.apache.jasper.JasperException: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is net.sf.hibernate.exception.GenericJDBCException: Cannot open connection
What could couse this? And what could solve the problem?
One more thing that wonders me:
# ls -la lrwxrwxrwx. 1 root root 18 Jan 17 2012 confluence -> confluence-3.5-std drwxr-xr-x. 13 1506 root 4096 Oct 3 09:48 confluence-3.5-std
There seems to be difference in permissions between actual confluence-folder and its virtual path..
The most concerning errors seems to be the "Cannot Open Connection" one, and for that we have this KB: https://confluence.atlassian.com/display/CONFKB/Unable+to+Start+Due+to+net.sf.hibernate.exception.GenericJDBCException+Cannot+open+connection
It usually indicates that your instance cannot reach the database, but there are another possible causes that it's worth to check.
Hope it helps.
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