R1:4da74166fe87

When storage is partitioned, refuse to serve requests unless web and databases agree on partitioning

Summary:
Ref T11044. One popular tool in a modern operations environment is Puppet. The primary purpose of this tool is to randomly revert hosts to older or different configurations.

Introducing an element of chaotic unpredictability into operations trains staff to be on high alert at all times, rather than lulled into complacency by predictability or consistency.

When Puppet reverts a Phabricator host's…