XCache DevOps Meeting Oct 10, 2019

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

Time: 11AM PT/1PM CT/2PM ET
Where: ZOOM.US

Join from PC, Mac, Linux, iOS or Android: https://unl.zoom.us/j/651969661

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    Meeting ID: 651 969 661
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XRootD Dev
    • Data integrity - not much to discuss.  TLS will solve it, and other solutions may come too.
        • Alternative (non-TLS) data integrity will be in a feature release in the 5 series.
    • v5 status
        • On target for release candidates at the end of year.
        • Release 5 in first quarter 2020.
        • Big part is the TLS.  Testing has not broke things yet…
        • Extended attributes already tested and works.

ATLAS XCache Deployment
    • Tool for data integrity checks.
        • Diego is working on it.
        • Ilija sent him bad files for testing.
    • Restarting work with Wenjing Wu (AGLT2)
        • XCache was working fine all this time at UChicago
        • Even for hot files, avg rate of reading per file is small (2MB/s)
        • Using cinfo parser.
        • Total rate of server is 2Gbps
        • Working on AGLT2’s xcache.

CMS XCache Deployment
    • Discussion with users about non-cmssw use?
    • Additional CMS sites with xcache?
    • CMS Xcache documentation has a PR right now!
        • https://github.com/opensciencegrid/docs/pull/619

OSG StashCache Deployment
    • I2 further deployment
        • Houston & Sunnyvale - Deployed but not “finalized”.  Only at 10Gbps for now, soon at 100Gbps
        • Amsterdam - Still stuck in customs, same as last week.
    • OSG nodes back online from security incident?
    • Issues with stashcache container installation and authentication back to the origin
    • GSI replacement document:
        • https://docs.google.com/document/d/1DAFeAaUmHHVcJGZMTIDUtLs9koCruQRDY1sJq1opeNs/edit#heading=h.43i3nfu6v7hb
        • Configure xcache report to central collector with SSL?

AOB
    • Validation of transfer (fstream) statistics, as discussed at IRIS-HEP retreat.
There are minutes attached to this event. Show them.
    • 13:00 13:05
      News
      Conveners: Brian Bockelman, Dr Derek Weitzel (University of Nebraska - Lincoln), Mr Marian Zvada (US CMS)
    • 13:05 13:15
      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)
    • 13:15 13:25
      ATLAS XCache deployment
      Conveners: Dr Ilija Vukotic (LAL), Wei Yang (SLAC)
    • 13:25 13:35
      CMS XCache deployment
      Conveners: Diego Ciangottini (Universita e INFN, Perugia (IT)), Prof. Frank Wuerthwein (UCSD)
    • 13:35 13:45
      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)
    • 13:45 14:00
      AOB