Skyline UI is not accessible post 3.4.0.0 upgrade

Products

• VMware

Issue/Introduction

Initial version of the Skyline Collector (when registered for the first time) must be 2.3.0.2 or below

Symptoms:

• Skyline Collector has successfully upgraded to 3.4.0.0

• Skyline Collector UI is not responding after admin login:

Cause

Older Collectors were vulnerable to a race condition bug which would result in invalid endpoint files being persisted on disk. Those invalid endpoints were ignored by the collector process, until release 3.4.0.0.

In Skyline Release 3.4.0.0 these invalid endpoints can be loaded and may result in a crash in several collector functionalities, including the UI.

Resolution

To resolve the issue, please follow the steps outlined below:

• Make a snapshot of the VM - please do not skip this step 
• Copy the attached files, fixEndpoints.jar and run.sh  to the collector VM (i.e. via scp, ftp or any other means of transfer).
• Run the script run.sh - bash run.sh
• Login to Skyline UI, verify that the UI is no longer broken, and verify that all endpoints (connections) are present, their number the same as before the fix was applied.