System Recovery Guidelines
AlterPath BladeManager Manual 4-77
BladeManager Database Transaction Support
The BladeManager commits all successful database transactions to the
BladeManager database. To ensure data integrity, the BladeManager roll will
roll back any failed database transaction in the event that:
• There are concurrent users updating the same record at the same time or
• A system fault caused the database transaction to fail.
When multiple users who are logged in as admin update the same record
simultaneously, the system will generate a warning message to one of the
users:
>> Responding to the Warning Message
When you receive the above warning message, you must perform the
following steps:
1. Click on the Reload button located at the bottom of the screen.
The system displays the screen that you were updating.
2. Verify the information to determine if you still need to update the form. If
you need to update the form, then proceed to re-update the form and then
click on Save.
Optimistic locking is a mechanism to lock objects in multi-user systems to
preserve integrity of changes so that one person’s changes do not accidently
get overwritten by another. It offers reduced concurrency, higher
performance, and avoids deadlocks.