As part of the traveloka.com private zone removal from shared VPC, we need to ensure that MongoDB replica set configurations don't use hostnames from traveloka.com private zone. To achieve that, we will reconfigure replica sets to use hostnames from main.tvlk.cloud. See previous announcement for more detail.
These are the 23 MongoDB clusters affected:
We will start reconfiguring the replica sets on Monday, August 6, 2018 and we will notify the database owner.
There may be a short connectivity interruption every time a node is reconfigured, we will update the progress on the slack in #site-infra-channel.
If you observe post-maintenance issues with your MongoDB cluster, please notify us on Slack channel
ref: https://docs.mongodb.com/manual/tutorial/change-hostnames-in-a-replica-set/