XCache DevOps Meeting Oct 29, 2020

Thursday 29 Oct 2020, 13:00 → 14:10 US/Central

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

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):
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Attendees: Marian, Andy, Carlos, Pepe, Diego, Edgar, Ilija, JohnH, Matevz, Mat, Riccardo, Derek

News
----
* WLCG Workshop on Storage Nov 19-24
- proposals for talks welcome from US sites! Pepe will send a call for proposals to the list
* Welcome new memebers from PIC - Pepe and Carlos
- working on XCaches monitoring in context of Spanish federation
- Carlos is PhD student collaborating with Pepe on data management projects for HL-LHC, deploying XCache instance at PIC

XRootD development for XCache
-----------------------------
* working a lot on SciTokens, progress is not as good as hoped but progressing
* still planning SciTokens library in separate RPM
* how to integrate SciTokens as a package, dominant technology for data access
* possible release of v5.1, it could go out without disk part integrity and only with network integrity that is ready for November; will decide later, disk part is complicated

XCache issues
-------------
* long discussion on TLS various usage
* security concerns that is related to the open ticket: https://github.com/xrootd/xrootd/issues/1299
* TPC-HTTP transfers related: https://github.com/xrootd/xrootd/issues/1303

ATLAS XCache deployment
-----------------------
* things are working fine for ATLAS
* Q from Edgar: have you tried to run any of the caches that run in Kurbernetes over IPv6 or dual-stack? Yes, in progress of setup preparation for dual-stack these days, will report back if they hit any problems.

CMS XCache deployment
---------------------
* debugging CNAF issues (caches can't start), Andy and Edgar are on the case

OSG StashCache deployment
-------------------------
* no news

XRootD transfers monitoring
---------------------------
* no news

13:00 → 13:05 News

Conveners: Dr Derek Weitzel (University of Nebraska - Lincoln), Mr Marian Zvada (US CMS)

13:05 → 13:10 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)

13:10 → 13:15 XCache issues

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

13:15 → 13:20 ATLAS XCache deployment

Conveners: Dr Ilija Vukotic (LAL), Wei Yang (SLAC)

13:20 → 13:25 CMS XCache deployment

Conveners: Diego Ciangottini (Universita e INFN, Perugia (IT)), Mr Edgar Fajardo Hernandez (UCSD), Prof. Frank Wuerthwein (UCSD)

13:25 → 13:35 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)

13:35 → 13:40 XRootD transfers monitoring

Conveners: Dr Derek Weitzel (University of Nebraska - Lincoln), Diego Davila (CMS), Mr Edgar Fajardo Hernandez (UCSD)

13:40 → 13:45 AOB