RAL Down Time

An account of changes made to the local system to cope with the RAL Down Time in Jun/Jul 2009

The Problem

RAL is moving their Tier 1 Services to a new building, which is the going to cause significant outage of a number of key services. Details of which services may be found here.

LFC Outage

The RAL LFCs are being moved and will not be available from Thursday 25th June 0800 until Friday 26th June 1200. This is likely to affect UK jobs and DQ2 tools. No known solution or workaround is known at this moment.

WMS Outage

The WMS at RAL are being drained from Wednesday 17th June. Jobs are likely to be lost if they haven't completed by Monday 22nd June. Birmingham supports job submission from local users that are members of the VOs in the table below. On the local system, default wms locations are held in the glite_wms.conf and glite_wmsui.conf files in the /home/lcgui/SL4/prod/glite/etc/ directory. On BlueBEAR, the directory is /bb/projects/lcgui/prod/glite/etc/.

In glite_wms.conf, the WMProxyEndpoints attribute was changed to hold a list of new wms service locations (either Glasgow or Imperial). These typically take the format:

https://svr023.gla.scotgrid.ac.uk:7443/glite_wms_wmproxy_server

In glite_wmsui.conf, the NSAddresses and LBAddresses attributes were changed. These entries took the format:

svr023.gla.scotgrid.ac.uk

Supported VOs were identified by virtue of the presence of a /glite_wms.conf file. New suitable WMS were identified using the command

lcg-infosites --vo wms | grep ".uk"

All editted files were initially backed up into their original directory with the suffix .20090616.

VO Old WMS New WMS
ALICE lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
ATLAS lcgwms01.gridpp.rl.ac.uk svr022.gla.scotgrid.ac.uk
  lcgwms02.gridpp.rl.ac.uk svr023.gla.scotgrid.ac.uk
BABAR lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
CALICE lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
DTEAM lcgwms01.gridpp.rl.ac.uk svr022.gla.scotgrid.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
HONE lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  

The following also appear to be supported on BlueBEAR:

VO Old WMS New WMS
BIOMED lcgwms01.gridpp.rl.ac.uk* svr022.gla.scotgrid.ac.uk
CAMONT lcgwms01.gridpp.rl.ac.uk* svr022.gla.scotgrid.ac.uk
CMS lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
ILC lcgwms01.gridpp.rl.ac.uk* wms00.hep.ph.ic.ac.uk
LHCB lcgwms01.gridpp.rl.ac.uk wms00.hep.ph.ic.ac.uk
  lcgwms02.gridpp.rl.ac.uk  
NA48 lcgwms01.gridpp.rl.ac.uk* wms00.hep.ph.ic.ac.uk
NGS.AC.UK lcgwms01.gridpp.rl.ac.uk* svr022.gla.scotgrid.ac.uk
OPS lcgwms01.gridpp.rl.ac.uk svr023.gla.scotgrid.ac.uk

* Configured to use lcgwms01 whereas lcg-infosites specifies that only lcgwms03 supports this VO

-- ChristopherCurtis - 16 Jun 2009

Topic revision: r2 - 25 Jun 2009 - 14:18:24 - ChristopherCurtis
 
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