Symptoms

When Confluence initiates the upgrade process, errors occur and the following appears in the atlassian-confluence.log.  These errors may also appear when trying to save a page:

ERROR [main] [hibernate.tool.hbm2ddl.SchemaUpdate] execute The table '#sql-73a5_5' is full
ERROR [main] [hibernate.tool.hbm2ddl.SchemaUpdate] execute could not complete schema update
java.sql.SQLException: The table '#sql-73a5_5' is full
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1072)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3563)
	...

Cause

MySQL can't alter the table since it specifies a certain amount of space for each table and has reached its maximum size. It usually occurs in Innodb storage format, where it's configured in my.cnf or my.ini.

Resolution