This illustration shows the two steps required for grabbing the token.

Step 1: Identify True Owner

  1. The replication site wants ownership of the row for the employee whose empno is 100.

  2. The site determines the current owner of the row by querying the headquarters database, which is

  3. The site determines that current owner for the row is the site

Step 2: Grab Ownership and Broadcast Change

  1. The replication site locks the row locally and synchronously updates both the site and the site, making the owner of the row at both sites.

  2. The site asynchronously updates all other replication sites to make the owner of the row