XCache

a lot of issues at AGLT2, LRZ and Oxford. Build and installed everywhere 5.7.1

Reliability seems to be better since then.  There is still one xcache node at AGLT2 (managed through NRP) that shows problems.

VP

VP service works nominally

There was an issue in Pilot time monitoring causing file-exist checks not to be accounted for. After that was fixed we found some VP jobs were experiencing very slow file-exist checks. Most drastic when BNL is origin. Not yet sure why it happens.

Rod is now testing a VP light approach - he adds remote but well connected RSEs to his VP queues for a read_wan and removes VP RSE. Jobs work fine.

Alessandra is now testing similar approach in UK.

Varnish

All varnish instances for both Frontier and CVMFS work fine.

Nov 26th we had a first test of Varnish infrastructure for CREST on HLT. There were issues with CREST origin server. Need to improve monitoring for the next test.

AF

Starting work that would allow AF AI assistant to do most things that a regular user could do. Then user could simply rule out an issue is on their side before bugging human support. eg. "I can't log in to login2, can you?" or "access to /data seems very slow, can you check?"