r5 - 15 May 2012 - 19:59:22 - WeiYangYou are here: TWiki >  Admins Web > MinutesFedXrootdMay2

MinutesFedXrootdMay2

Coordinates

  • Attending:
  • Apologies:

FAX Status Dashboard

Background

Panda Movers

ANALY /Performance (Rob, Ilija, Doug)

X509

  • What are the requirements for clients? X509 proxy with valid ATLAS voms attribute; X509 infrastructure (/etc/grid-security/certificates, etc.)
this meeting

cmdsd+dcache/xrootd door

last meeting:

  • Sarah: dCache xrootd door's performance similar to dCap door.
  • A "authorization" plugin for the dCache/xrootd door which uses the cached GFN->LFN information to correctly respond to GFN requests (Hiro/Shawn/?). Hiro, will work on a Java API for LFC first.
this meeting:

Monitoring:

  • place holder

Xrootd release 3.1.0 deployment

Summary of previous meetings: notes only
  • Xrootd releases come out with some functional validation by stakeholders and large sites. But lack a formal release validation process.
  • CMS abandoned Dcap plug-in for Xrootd OFS. They use dCache xrootd door directly or Xrootd overlap dCache.
  • Known issues:
    • RPM updates overwrite /etc/init.d/{xrootd,cmsd} which have LFC environment setup. Those setup should go to /etc/system/xrootd which survives rpm updates. Patrick will test it.
  • SWT2: N2N? crashing issue is understood (conflict of signal usage in regular xrootd and Globus). Solution is either use a proxy, or regular xrootd with "async off".
  • Xrootd 3.1.1 is ready for deployment at all sites.

-- WeiYang - 02 May 2012

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Attachments


pptx Ilija_WANmonitoringMay2.pptx (153.1K) | WeiYang, 02 May 2012 - 13:13 | Ilija's FAX status slides
pdf DavidLesny_XRD_GSI_workaround_v2.pdf (10.8K) | DavidLesny, 02 May 2012 - 16:10 | xrootd GSI workaround by David Lesny
 
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