An error occurred during communication with the database. (J2EE application = aa....aa, context root = bb....bb, DB Connector = cc....cc)

aa....aa: J2EE application name
bb....bb: Context root name
cc....cc: Optional name of the DB Connector

Description

An error occurred in the database during the monitoring processing of the validity period.

Action

Make sure that the database is operating properly, no problem has occurred in the communication path between the database and J2EE server, and no mistakes exist in the change contents of the SQL file used for creating the table.

If an error occurs in the database, take action against the cause according to the procedure for database recovery.

If a problem occurs in the communication path between the database and J2EE server, solve the problem. When the problem occurs, the mutual exclusion of the database might not be released. Before restarting a business, check the invalid connections, and release the unreleased exclusion.

If a mistake exists in the settings of the SQL file used for creating the table or in the settings of the application, revise the settings. For details on the procedure for changing the settings, see 6. Database Session Failover Functionality in the manual Cosminexus Application Server Function Guide - Expansion.

If no problem exists in the database, communication path, and SQL file used for creating the table, check if the settings of the timeout period of the DB Connector connection are correct. If a short timeout period is set up for the connection, a timeout might occur before the completion of the recovery process, when an error occurs in the database. Tune the parameters of the DB Connector after considering the recovery period of the database.