• Diagnosing Coffea Casa deployment issues ongoing
  • Duplicate resource errors when spawning notebooks
• EOS deployment ongoing
  • Cluster up with 2PB of storage across several 90TB arrays (retired MWT2 storage)
  • Need to understand options available for authentication. Don't really want to run Kerberos
  • Gathering a list of issues/tweaks/workarounds with the Helm charts, would like to meet with the developers at some point to discuss further
• Experimenting with WireGuard 'routing node' features 
  • Don't have to install WireGuard on all nodes, but a node can be a NAT between the WG network and a private LAN
    • Demonstrated connectivity from, e.g. umich001 to UChicago AF NFS server via the WG network[1]
      • Was also able to mount /home and it seems to work. 200MB/s read/write - not great but probably due to MTU ~1500 as Aidan/Judith observed
• Sent Wei a demonstration `podman` command to create a pod to join the WG network 
• Tested HTCondor glidein on NET2 (ostensibly to connect back to UChicago AF), caused HTCondor to segfault :)
• Kuantifier discussion tomorrow, use Facility R&D link:
  • https://uchicago.zoom.us/j/91426535627?pwd=UUExNlkvMGRpbEJudU5OZ05mV080dz09

[1]

[root@umich001 ~]# tracepath 192.168.240.133
 1?: [LOCALHOST]                      pmtu 1280
 1:  100.81.190.82                                         6.515ms 
 1:  100.81.190.82                                         6.275ms 
 2:  192.168.240.133                                       6.750ms reached
     Resume: pmtu 1280 hops 2 back 2