[DRILL-6776] Drill Web UI takes long time for first time load in network isolated environment

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.14.0
• Fix Version/s: 1.15.0
• Component/s: Web Server
• Labels: ready-to-commit
• Assignee: Igor Guzenko
• Reporter: Igor Guzenko
• Reviewer: Arina Ielchiieva
• Created: 05/Oct/18 18:04
• Updated: 11/Oct/18 13:08
• Resolved: 11/Oct/18 13:08

Description

In the case when cluster is built upon network isolated from internet,
First-time loading of UI takes about 25 seconds. Where 15 seconds browser spent
on waiting while request for /ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js
timed out.

JQuery was added to static resources in scope of DRILL-5699, but dependency on
google's cdn wasn't fully removed. So the static resource was added as a fallback . I guess the main reason why fallback solution was applied is that there is a
higher probability that library from google's mdn may be found & loaded from browser's cache.

Unfortunately this graceful solution doesn't work for really isolated environment, that's
why we need to fully remove the /ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js dependency.

Issue Links

• links to: GitHub Pull Request #1495