Purpose

Generating or upgrading a Hipchat Data Center license requires you to have your server ID handy. This article shows how to find your deployment's server ID if it's not visible in your license page. 

Solution

Starting from Hipchat Data Center version 3.1.1, all nodes in a cluster share the same server ID which can be found in the Postgres database by running: 

SELECT * FROM configurations WHERE key='atlassian_server_id';