UI unavailable after Skyline Collectors upgrade to 3.2

Products

• VMware

Issue/Introduction

• To get the Collectors UI page up and running

Symptoms:

• After Skyline Collectors upgrade to 3.2, the Collectors UI page does not load.

Cause

• After the update, the browser keeps cookies that are unrelated to the Collector back-end (i.e. _ga and _gid) but linked to the domain.
• Without a valid sessionId cookie, the backend would then fail with `NullPointerException` because it assumes that the unrelated cookies are session cookies and tries to parse them accordingly.

Resolution

This issue is resolved in VMware Skyline Collector version 3.3.

Workaround:

To workaround this issue, follow the steps mentioned below:

 

Note: These steps need to be done on the Google Chrome browser as that is the most compatible with Skyline. However, after the resolution, you can access the Collectors UI page from any browser.

 

1. Clear all the cookies of the Google Chrome browser.
2. If the issue persists, from the Collectors UI page, go to Developers tools by clicking the F12 key
3. First, click on the Applications tab and click on Cookies (as shown in the screenshot at the end)
4. Right-click and delete all the cookies present there
5. Refresh the browser and you should see the login screen

Additional Information

Impact/Risks:

• Due to this, the Collectors UI page does not load.