-- JamieShiers - 25 Jul 2006

Actions preparing for Q3/Q4 (CMS CSA06 etc.)

ATLAS Actions

ATLAS Sites

Request Date Due Date Action Requestor Target Responsible Contact More Info Status
27 June 31 August Monitoring of LFC services Miguel Branco ATLAS T1s Miguel Branco Miguel Branco [miguel.branco@cern.ch] See this page for information on LFC monitoring at CERN Pending - this should be a generic service requirement, independent of any VO (10 July) LFC is a site critical service for ATLAS - if it is done, site is effectively down (17 July). ATLAS is contacting sites directly where LFC service issues have been seen (19 July)

CMS Actions

CMS Sites

Request Date Due Date Action Requestor Target Responsible Contact More Info Status
27 June ? improved performance and reliability of file transfers Michael Ernst T0+CMS T1s Michael Ernst + WLCG Service Coordination Team Michael.Ernst@cernNOSPAMPLEASE.ch, it-dep-gd-sc@cernNOSPAMPLEASE.ch Daily check-point plus follow-up at CMS integration task-force.. more info Closed
10 July - Performance of transfers into CERN CERN Michael Ernst Michael.Ernst@cernNOSPAMPLEASE.ch Transfers from Tier-1/2 to Castor at CERN are very slow and time out frequently (Maarten) See SC Tech mail Understood - closed
10 July - FTS channel architecture clarifications FTS team Michael Ernst Michael.Ernst@cernNOSPAMPLEASE.ch - Define FTS channel architecture for Tier-1 <=> Tier-2 interconnects (James, Gavin, Paolo, Ian, Michael) July 24 - meeting was held July 18 to address this. See July 19 CMS Task Force meeting
10 July - FTS management issues FTS team Michael Ernst Michael.Ernst@cernNOSPAMPLEASE.ch - Tools to monitor transfer activities on FTS channels; provide access to FTS logs (Gavin, Paolo) Temporary solution being tested
27 June by July 3D infrastructure Michael Ernst T0+CMS T1s Michael Ernst, Dirk Duellmann Michael.Ernst@cernNOSPAMPLEASE.ch, Dirk.Duellmann@cernNOSPAMPLEASE.ch Involves SQUID deployment at T1 and T2 sites July 24 - required infrastructure in place at T0, T1s and main T2s. To be followed... see CMS database access wiki for more info
27 June ? sites to complete their CSA06 metrics Ian Fisk, Michael Ernst Participating CMS sites Ian Fisk, Michael Ernst ifisk@fnalNOSPAMPLEASE.gov, Michael.Ernst@cernNOSPAMPLEASE.ch CSA meeting, June 23, CSA06 Wiki Pending - more details can be found in July 19 CMS Task Force meeting

  • CMS CSA06 Resource requirements:
    • Tier0 - 1200CPUs and 180TB
    • Tier1s - minimum of 150CPU and 70TB per participating site; total of 1500CPUs and up to 200TB/site
    • Tier2s - minimum of 20CPU and 5TB per participating site; total of 2500CPUs and up to 25TB/site

ALICE Actions

ALICE Sites

  • T0(CERN); T1s (IN2P3, GridKA, CNAF, SARA? RAL? NDGF?); T2s (Torino, Legnaro, Bari, Cagliari, Catania (CNAF), Subatech, Clermont(IN2P3), GSI, SPbSU, PNPI (St.Petersburg), ITEP, KI, JINR (GridKA))

Request Date Due Date Action Requestor Target Responsible Contact More Info Status
27 June 10 July SRM end-points for T0-T1 Latchezar Betev ALICE T1s Patricia Mendez Patricia.Mendez@cernNOSPAMPLEASE.ch - Done
27 June 10 July FTS end-points for T0-T1 Latchezar Betev ALICE T1s Patricia Mendez Patricia.Mendez@cernNOSPAMPLEASE.ch - Done
27 June 10 July end points for T1-T2 Latchezar Betev ALICE T2s Patricia Mendez Patricia.Mendez@cernNOSPAMPLEASE.ch - Pending (17 July)
27 June 10 July LFC at all sites Latchezar Betev ALICE T1s Patricia Mendez Patricia.Mendez@cernNOSPAMPLEASE.ch - Done, except NDGF
27 June 10 July VO boxes at all sites Latchezar Betev ALICE T1s Patricia Mendez Patricia.Mendez@cernNOSPAMPLEASE.ch - Done, except NDGF

LHCb Actions

Request Date Due Date Action Requestor Target Responsible Contact More Info Status
27 June 30 June separate disk&MSS(tape) storage classes Umberto Marconi LHCb T1s Nick Brook / Umberto Marconi Nick.Brook@cernNOSPAMPLEASE.ch, Umberto.Marconi@cernNOSPAMPLEASE.ch - 3 July - done
27 June 30 June ROOT/POOL data access to SEs Umberto Marconi LHCb sites Nick Brook / Umberto Marconi Nick.Brook@cernNOSPAMPLEASE.ch, Umberto.Marconi@cernNOSPAMPLEASE.ch See below Problem only seen at SARA/NIKHEF & IN2P3
27 June 30 June ROOT/POOL data access to SEs Umberto Marconi NIKHEF/SARA Nick Brook / Umberto Marconi Nick.Brook@cernNOSPAMPLEASE.ch, Umberto.Marconi@cernNOSPAMPLEASE.ch - There is a specific network-related issue at NIKHEF/SARA which prevents jobs on worker nodes at NIKHEF accessing data on SEs at SARA. Following GDB of July 5th, proposed that this is followed up by negotiation between site, experiment and appropriate developers. July 19th. As temporary measure, NIKHEF is not used by LHCb for reconstruction, but only for simulation production. Discussions with dCache developers suggest a solution could be in beta shortly.
27 June July VO boxes Umberto Marconi CNAF Nick Brook / Umberto Marconi Nick.Brook@cernNOSPAMPLEASE.ch, Umberto.Marconi@cernNOSPAMPLEASE.ch Available at all sites except CNAF Pending but not a show-stopper Updated 3 July
27 June prior to October COOL and 3D database services Umberto Marconi all sites Nick Brook / Umberto Marconi Nick.Brook@cernNOSPAMPLEASE.ch, Umberto.Marconi@cernNOSPAMPLEASE.ch - July 24 Pending - more details of precise services by site to be provided

ROOT/POOL data access to SE problem

The problem is with the client library of dcache that checks only the first 56 CAs. If your are unlucky (your CA is beyond these first 56 CAs) any interaction with the dcache server is not authenticated and fails. This problem has been experienced at IN2P3 and NIKHEF. LHCb want to have assured everywhere the possibility of accessing data directly from SE (without copying them to local disk on the WN)

Update 3 July - a fix for this is scheduled for gLite 3.0.2

Update 19 July - As IN2P3 moved to gsidcap that is not supported by ROOT until recently, LHCb will use the disk endpoint there temporarily

Update 25 July - This is not supported by ROOT in the AA until next release. LHCb will need to re-build our applications. Although not advertised the Lyon disk SE does support insecure dcap. Our "hack" to use this failed - currently under investigation by LHCb

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Topic revision: r4 - 2007-02-14 - FlaviaDonno
 
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