XCache DevOps Meeting July 30, 2020

Derek Weitzel (University of Nebraska - Lincoln), Marian Zvada (US CMS)

Where: ZOOM.US

Join from PC, Mac, Linux, iOS or Android: https://unl.zoom.us/j/651969661
Meeting is password-protected: ask #xcache slack channel or [email protected]

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Attendees: Marian, Derek, Ilija, BrianL, Diego, Mat, Matevz, Riccardo, Edgar, Andy

* no news

* no particular development
* discussion hotfix builds outside of the OSG release process, more discussion on that to clarify several things, see separate email on the topic with subject: "XRootD 5 RPMs available in osg-upcoming-testing"
* issues with gfal client tool, breaks some functionalities, Andy will send email what parts of configs for cmsd if xrootd runs as servers breaks and what's work around

* no report this week

* no news this week
* reinforcement learning on caching, g-stream monitoring should help
* ATLAS caches talk to CRIC - AGIS is being replaced by CRIC

* preparing report with result on the assessment and validation, can share with xcache list or even do short talk on it sometime after the report is out

* no report this week
* all the SoCAL caches are behind one redirector

* Edgar is working on the containers that includes images with scitokens
* hotfix process and other work related to the builds discussed also earlier in the development section

* crawler, xcache consistency check requires python2 at the moment, may need update to use python3 - on todo list of Diego
* Riccardo is studying integration of xcache into data lake scenario, presentation at the end of the August possible
* We'd like to hear more news on the works from UNI Frankfurt, there was some presentation already that GSI provided, could we get a link if it's publicly available?

There are minutes attached to this event. Show them.
    • 1:00 PM 1:05 PM
      Conveners: Dr Derek Weitzel (University of Nebraska - Lincoln), Mr Marian Zvada (US CMS)
    • 1:05 PM 1:15 PM
      XRootD development for XCache

      General status of development, XRootD releases with new cache features, bug fixes, etc...

      Conveners: Mr Andrew Hanushevsky (SLAC National Accelerator Laboratory), Matevz Tadel (UCSD), Wei Yang (SLAC)
    • 1:15 PM 1:25 PM
      ATLAS XCache deployment
      Conveners: Dr Ilija Vukotic (LAL), Wei Yang (SLAC)
    • 1:25 PM 1:35 PM
      CMS XCache deployment
      Conveners: Diego Ciangottini (Universita e INFN, Perugia (IT)), Prof. Frank Wuerthwein (UCSD)
    • 1:35 PM 1:45 PM
      OSG StashCache deployment

      Status of OSG deployment, origin/caches operations, stashcp, usage, etc...

      Conveners: Brian Bockelman, Brian Lin (University of Wisconsin-Madison), Dr Derek Weitzel (University of Nebraska - Lincoln), Mr Edgar Fajardo Hernandez (UCSD), John Hicks (Internet2), Mr John Thiltges (University of Nebraska - Lincoln), Mr Marian Zvada (US CMS), Mr Matyas Selmeci (University of Wisconsin-Madison)
    • 1:45 PM 1:50 PM