wiki:developers-meeting-20100420
Last modified 11 years ago Last modified on 04/21/10 17:38:59

dCache Tier I meeting April 20, 2010

[part of a series of meetings]

Present

dCache.org(Tigran,Gerd,Patrick), IN2P3(), Sara(), Triumf(), BNL(Pedro), NDGF(Gerd,Thomas), PIC(Gerard), GridKa(Doris by e-mail), Fermi(), CERN(Andrea)

Agenda

  • short file and gridftp 2
  • dcap ++

Site reports

  • NDGF : Seems to be ok.
    • Good news : problems with the CERTs seems to have reappeared with JETTY at NDGF. Now Gerd can investigate.
    • And old issue reappearing with xrootd. A lot files are kept open with xrootd. Unfortunately xrootd has a very short timeout on connect. This causes movers to be queued. Thomas(NDGF) is going to investigate.
  • PIC : All fine. Upgrade to 1.9.5-17 at 27.4.
  • BNL :
    • Request by Gerd to set 'TCP SYN-cookies' off. Having it 'on' caused strange effects in the past observered by Gerd.
    • On the gridftp issue : Gerd provided some patches which went throught review and will be made available to BNL by tomorrow.
    • There are Files on disk having mode RXL(0). Pedro will open a ticket and Gerd will try to get access to the system.
  • GridKa (via e-mail) : The SRM for ATLAS died last week late in the evening and had to be restarted by our on call service. Since then it runs without any problems. The cause of this failure is still unknown. Apart of that we do not have anything to report.
  • CERN : nothing.

DTNM

Proposed: same time, next week.