Katy missed the last 3 weeks - O&C week, CHEP and off sick.

SAM tests look good, other than the previously noted occasional irregular failure on the CE tests. AAA saw some failures in the middle of last week probably related to reboots made a few days before - typical behaviour. Service restarts in various order appeared to fix it.

Job performance: A week ago there were low performance jobs running at many sites - these were spotted and supposedly fixed. In the last 24 hours I see again low CPU efficiency at several T1s. Seems lots of T1s are running large amounts of Analysis jobs which are pulling the CPU eff down.

Mini-UK data challenge part 1 planned for week of 9th Dec (at least ATLAS and CMS). Intention is to mostly test Tier2s. Tier 1 will likely be used as a source, but the idea is not to push Echo significantly at this point.