[bigbluebutton-greenlight] Intermittent 504 issue while user login.

[Vishnu Gudali]

Hello Greenlight team,

We faced 504 issues with Greenlight while users tried to login using O365 Azure authentication.

This is intermittent and resolved when we restart greenlight (docker-compose down & docker-compose up -d) for about 4 times: then the issue seems resolved for the moment.

Debug steps:

Checked below logs for errors or any lead that caused 504:

1. greenlight docker logs

HTTP parse error, malformed request ("GET /scripts/surgeweb" - (-)): #<Puma::HttpParserError: Invalid HTTP format, parsing fails. Are you trying to open an SSL connection to a non-SSL Puma?>

2. /var/log/nginx/error.log

[crit] 1013894#1013894: *10547684 SSL_do_handshake() failed (SSL: error:0A00006C:SSL routines::bad key share) while SSL handshaking, client: x.x.x.x, server: 0.0.0.0:443

3.  /var/log/nginx/greenlight.access.log

162.158.142.104 - - [09/Oct/2025:17:53:53 +0000] "GET /b/api/v1/env.json HTTP/2.0" 304 0 "https://XXXXXX.com/b/?error=SignupError" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) QCOMAvalonEnterprise/1.0.5 Chrome/132.0.6834.196 Electron/34.2.0 Safari/537.36 XXXXXX-Desktop-App"

162.158.142.103 - - [09/Oct/2025:17:53:53 +0000] "GET /b/api/v1/site_settings.json?names[]=Maintenance HTTP/2.0" 304 0 "https://XXXXXX.com/b/?error=SignupError" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) QCOMAvalonEnterprise/1.0.5 Chrome/132.0.6834.196 Electron/34.2.0 Safari/537.36 XXXXXX-Desktop-App"

4. /var/log/nginx/access.log

None were found

As a preventive measure, scheduled thrice-a-week restart script for greenlight. 

It would be of great help with any information in regards to the above issue which helps to narrow down the cause of this issue.

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Best Regards,
Vishnu. G