SC4 Combined Action List

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

General actions

Site monitoring of local services - to be discussed in detail at September 15 SC Tech Day
Tools to monitor transfer activities on FTS channels; provide access to FTS logs (Gavin, Paolo) ( Temporary solution being tested )
Improve the performance and reliability of the gLite Resource Broker (critical path for CMS CSA06)
Support multiple priority levels for grid batch jobs (critical path for LHCB distributed analysis)

ATLAS Actions

Request Date	Due Date	Action	Requestor	Target	Responsible	Contact	More Info	Status

CMS Actions

Request Date	Due Date	Action	Requestor	Target	Responsible	Contact	More Info	Status
17 August		Transfer rates into CERN	Michael Ernst	James Casey, Olof Barring			See below	In Progress

Report https://twiki.cern.ch/twiki/pub/LCG/SCActionList/tier-2_transfers.doc
18 August. Debugging continues. Appears to be related to use of HTAR vs firewall?
17 August. A set of improvement parameters for outside sites running DPM has been found. Will be provided in next release.

ALICE Actions

Request Date	Due Date	Action	Requestor	Target	Responsible	Contact	More Info	Status
27 June	10 July	end points for T1-T2	Latchezar Betev	ALICE T2s	Patricia Mendez	Patricia.Mendez@cernNOSPAMPLEASE.ch	-	Pending - focus first on Tier0 - Tier1 issues (7 August)

LHCb Actions

Request Date	Due Date	Action	Requestor	Target	Responsible	Contact	More Info	Status
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

Topic revision: r3 - 2007-02-14 - FlaviaDonno

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