Dear xrootd team,
a few years ago we opened an issue reporting that out services in the US have authentication failures for a little over an hour after the US switches to day-light savings time. We had an exchange and traced this down to the daemons calculating the timezone offset to UTC at start time and then using it throughout their execution. I thought the issue was fixed and all recent versions would include the fix.
But aparently not: All CMS xrootd services in the US failed aur tests with authentication error this morning Sunday, March 12th at 2 am UTC for a bit over an hour. This smells like the day-light savings bug. Sites run xrootd versions between 5.3.1 and 5.5.3, i.e. rather recent. The error is XRootDStatus.code=204 "[FATAL] Auth failed: No protocols left to try".
Could you please take a look if the old fix got lost? or a new issue was introduced?
Thanks,

Stephan

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