= QCG-Notification update instructions =

In most cases the update of the QCG-Notification is straightforward and doesn't need any additional work beyond typical operations (e.g. 'rpm -U' in case of RPMs). Nevertheless, some updates may require changes in configuration files or/and database schema. The following list of instructions corresponds only to the updates that need such a special treatment.

== Update to 2.6.x ==
In version 2.6.x of QCG-Notification the database schema has changed so the database used by the installed service must be updated as well. Note that all data stored in a database will be removed.
1. Turn off the QCG-Notification service (e.g. /sbin/servide qcg-ntfd stop).
2. Update the service in a typical fashion (e.g. rpm -U qcg-ntf-2.6.2-2.x86_64.rpm or yum update qcg-ntf).
3. Update the QCG-Notifcation database. For installation from RPMs you can use the script installed in /opt/plgrid/qcg/share/qcg-ntf/qcg-ntf-update.sh. Alternatively you can change the database manually with the SQL script: /opt/plgrid/qcg/share/qcg-ntf/qcg-ntf-psql.sql.
4. Re-run the QCG-Notification service (e.g. /sbin/service qcg-ntfd start).