Frequent cylc play failures

Rose/Cylc and FCM
1

Hi CMS team,

I have been experiencing frequent errors (an example is shown below) when using cylc play that prevents my suites from running. This has been happening since yesterday, although the errors are sporadic as sometimes the suite does run. A colleague got the same error when trying to run a suite today.

Screenshot 2026-09-29 at 13.26.09
Screenshot 2026-09-29 at 13.26.091676×1132 398 KB

These errors have coincided with me having lag/unresponsiveness issues with PUMA2 and ARCHER2 - such as the Rose GUI taking a long time to launch, and the Cylc tui freezing. I don’t know if they’re related to the cylc play errors, however. To clarify, I have had this error before caused by my MOSRS password cache expiring, but I can confirm this is not the problem in this case.

Many thanks for any suggestions and help.
Amber

2

Hi Amber

A colleague on site where I am had the same issue yesterday but it ‘fixed itself’ after a while. I’d suggest contacting the ARCHER2 help desk to let them know about this, especially if its affecting other users where you are too.

Do update us though if this persists for, say, the rest of the day though.

Cheers

Jonny

3

Hi Jonny,

Thanks for the info, hopefully that happens in our case too! I am already in contact with the ARCHER2 Servicedesk so have given them some additional info in case there is an underlying shared cause of these problems.