Random "HTTP 400 Bad Request" error when using VM Console and VMware Remote Console (VMRC) post upgrade to Cloud Director 10.4.x

Products

• VMware Cloud Director

Issue/Introduction

Symptoms:

• Web Console and VMRC Consoles randomly fail to open.
• A messages stating "Connection Error" is observed in the VMRC.
• When inspecting VM Console network traffic in a Web Browsers Developer Mode screen, you observe a HTTP 400 response.
• Upon inspection of the MKS Ticket, it's seen that it contains two slash "//" characters in a row like this example:

/443;cst-ks5Ou+YiQvB8pQEK3ciZPFdntw4P2BVIWD3iutOZi+9y/FQ5o+gXsTrzGiBwhmk4AOUTLazIK2W5hYuE7s0MH7jolTda5iyqt1O8N00iI86XzyuB+G1PpUTL3qmJXYODRRUAzfuJrTfo5b2n0cazwO8cOgrav0Ham1a//7J/mDpDvd2jaqWoN4aovRkA8K+QF0yaBLmYhBtYdxV3OUTJq5sv22UIPK2p5lk/7nayALsupW0Pty535lx6nO17K/OT/Udo3I5RKxKbnfs9QYlvkqVbOmPzi4t0aJevOo51cDYXTqHLJetyUrWmLeoZ0wy9-TEnpFBysGnG/fW7pkQPX5rNY9uVvtZXmpryuLTBKATYgXKYVdHLlM47cp8GHkzFjtAaJdWmGeVHjpzXjcwDXQjx9k/EFvaYH--tp-DF:65:E5:85:F2:50:68:EF:F2:A3:13:12:E2:28:30:B9:7C:19:E7:90--

Environment

VMware Cloud Director 10.x

Cause

This issue occurs due to the MKS Ticket contains a double slash // within it. The current implementation of Jetty has a behavior which no longer tolerates such malformed URLs and this leads to the disconnection.

Resolution

This is a known Issue in VMware Cloud Director 10.4.x release.

This issue is resolved in Cloud director 10.5.1,available at VMware Downloads.

Workaround:

The MKS ticket is regenerated each time a console connection is opened. Attempt to close and reopen the console until you get a successful connection. The likelihood of continuously getting a double slash // in the MKS Ticket is low.