Promoting a Slave to Master

Promoting a Slave to Master is important from within a cluster, and having multiple clusters (using unique MoM keys) connecting to the same area is High Availability. Taking offending Slaves out of rotation through the Load Balancer can also mitigate any traffic impact.

To promote a Slave to Master:

Procedure

  1. Log into the Slave instance.
  2. On the Mashery Cluster Manager tab, click Instance Management.
  3. In the Promote to Master section, click Promote to Master.
  4. Log into the other Slaves, go to Instance Settings in Instance Management, and in the change the Master Instance IP address to the new Master's IP address.
  5. (Optional) Delete the old Master or shut down that Virtual Machine.