Session data may be corrupted if the system log reports errors under the following circumstances:
During session persistence
When the session state is read during session activation
When the session state is read after session failover
If the data has been corrupted, there are three possible solutions for bringing the session store back to a consistent state, as described below.
Use the asadmin clear-session-store command to clear the session store.
If clearing the session store does not work, reinitialize the data space on all the nodes and clear the data in the HADB using the hadbm clear command.
If clearing the HADB does not work, delete and then recreate the database.
For solutions 2 and 3, above, after clearing the HADB, recreate the session store to restablish the database schema.