Session Expired (401)

[flseiler]

Hello there,

we have periodic problems with session timeouts without a warning.

I already checked the sys_property for session timeout and the timeleft property:

The timeout happens like every 30 minutes without a warning for the timeleft.

This ist the case for onsite collegues, if I'm working from home it seems like it's the configured 3 hours.

What could be the cause for this issue?

 

 

 

[Fabian_F]

Hi,

we had the same issue and experienced random "Session Timeout (401)" messages.

We opened a HI ticket, and ServiceNow confirmed that the problem is caused by a miscalculated session timeout on the platform side.

There is an official workaround documented in PRB1884182:

1. We recommend that active session timeouts ('glide.ui.active.session.life_span' and 'glide.guest.active.session.life_span') be set to 2x to 3x their respective inactive session timeouts ('glide.ui.session_timeout' and 'glide.guest.session_timeout'). This is true regardless of PRB1884182, but will serve as a workaround to the problem. Given the purpose of an active session timeout, the closer the value is to the respective inactive session timeout, the less meaningful the latter timeout becomes. Typical examples would be 60/180 or 120/360, but of course the actual timeouts would be dependent on the use cases for a given instance. 

2. Only if option (1) doesn't mitigate the problem to an acceptable degree, temporarily disable active session timeout until upgrade to fixed version. This can be done by setting the property 'glide.active.session.timeout.invalidate.session' to false. Note that active session timeout is disabled by default. 

In our case, adjusting the value of the glide.ui.active.session.life_span property resolved the issue.

Regards
Fabian