Results of a Takeover From a Replication Perspective

From a replication perspective, after a successful takeover, the Local-role property of the protection group is changed to reflect the new role, it is immaterial whether the application could be brought online on the new primary cluster as part of the takeover operation. On cluster-newyork, where the protection group had a Local-role of Secondary, the Local-role property of the protection group becomes Primary. On cluster-paris, where the protection group had a Local-role of Primary, the following might occur:

• If the cluster can be reached, the Local-role property of the protection group becomes Secondary.

• If the cluster cannot be reached, the Local-role property of the protection group remains Primary.

If the takeover is successful, the applications are brought online. You do not need to run a separate geopg start command.

After a successful takeover, data replication between the new primary cluster, cluster-newyork, and the old primary cluster, cluster-paris, is stopped. If you want to run a geopg start command, you must use the -n option to prevent replication from resuming.