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XCache DevOps Meeting Jan 28, 2021

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

Time: 11AM PT/1PM CT/2PM ET/8PM CET
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 xcache@opensciencegrid.org

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    Dial(for higher quality, dial a number based on your current location):
        US: +1 669 900 6833  or +1 408 638 0968  or +1 646 876 9923
    Meeting ID: 651 969 661
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Attendees: Derek, Matevz, Marian, Pepe, Riccardo, Andy, Carlos, David, Diego, Edgar, Ilija, Mat

News
----
* no news

XRootD development for XCache
-----------------------------
* we're going to have RC6, two significant bug fixes (one is xrdtpc another dealing with proxy servers with ssl outgoing connections), cut postponed until Monday

XCache issues
-------------
* multi-user and checksums issue at Caltech that is being investigated and explained over the email, may take quite some effort to fix, progress/suggestions/ideas tracked under github #1294

ATLAS XCache deployment
-----------------------
* no news, running 5.1.0 RC4

CMS XCache deployment
---------------------
* no news

XRootD transfers monitoring
---------------------------
* question on gstream python collector, clarified this is something different than fstream collector OSG is testing right now
* in the near future planned work on gstream collector for tcp metrics (gstream for plugins, configurable)

OSG StashCache deployment
-------------------------
* no news in SW, waiting for RC6
* no news for Amsterdam (JohnH reported over the email)

AOB
---
* submitting new project proposal on national XCache in Spain (200TB start with, currently 1TB) PIC, Madrid, few T2s and 1x T1
* discussion about having workshop to present sites how they can easily deploy XCache/origins (mostly for EU, the sites that are migrating away from DPM), Pepe would help prose this as part of pre-GDB
* got some hardware for xcache deployment at CERN, more news about next steps will follow

There are minutes attached to this event. Show them.
    • News
      Conveners: Dr Derek Weitzel (University of Nebraska - Lincoln), Mr Marian Zvada (US CMS)
    • 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)
    • XCache issues

      XCache issues experienced during the deployment, configuration or otherwise causing problems in production or development.

    • ATLAS XCache deployment
      Conveners: Dr Ilija Vukotic (LAL), Wei Yang (SLAC)
    • CMS XCache deployment
      Conveners: Diego Ciangottini (Universita e INFN, Perugia (IT)), Mr Edgar Fajardo Hernandez (UCSD), Prof. Frank Wuerthwein (UCSD)
    • 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)
    • XRootD transfers monitoring
      Conveners: Dr Derek Weitzel (University of Nebraska - Lincoln), Diego Davila (CMS), Mr Edgar Fajardo Hernandez (UCSD)
    • AOB