Rebuild data-mongod in VPC

As part of EC2 classic to VPC migration, site infra team will rebuild data-mongod in VPC.

New cluster already built and prepared. We will execute final step of the migration by donating data volume from currently data-mongod instances to new instances.

Migration will start from secondaries.

After all secondaries migrated, we will step down data-mongod primary and attach data volume to this instance.

Plan

See https://docs.google.com/document/d/1Rq2Fky6wl1RNvrsktgIh3pLl9mYZ1vreH4dzHdt0XYo/edit#heading=h.6hc9lmihnyhb

Time

Thursday 2018-08-1515:15:00 UTC+7

Notes

Please contact @site-infra on comment section of this post if after this maintenance you have a problems accessing data-mongod.