Unplanned failover and failback in continuous replication may fail if the communication of the IPTABLE rules between the cluster nodes does not happen correctly

In case of unplanned failover and failback, the IPTABLE rules may not get restored properly. The communication between the nodes does not happen correctly.

Workaround:

Flush the IPTABLES on all the nodes in the cluster on the primary as well as the secondary site.

# iptables -F