Brief notes from SRM Coordination meeting of Oct 29 2007
Present: H.Renshall (chair+notes), F.Donno, T.Cass, J.Gordon, G.Oleynik,
P.Fuhrmann
There were no comments on the notes of the previous meeting.
The main topic was a review of the status of software upgrades and
associated testing.
The dcache Patch 23/gridftp problem reported last week was quickly
resolved as a configuration problem. Yesterday NDGF started
upgrading their production SE to dcache 1.8.0-0 with SRM v2.2 and could
be the first Tier-1 to advertise SRM v2.2 in production.
However, NDGF have decided to not advertise SRM v2.2 in production but
to continue to run SRM v1.1 as SRM interface to dCache 1.8.0-0. Flavia
is going to talk to them to understand the reason of this decision.
In fact the high-level utilities such as FTS, gfal, lcg-utils still
default to SRM v1 therefore there should not be problems advertising
SRM v2.2 as well. Most other dcache sites are on Patch level 26.
FZK is upgrading the SRM v2.2 test endpoint to 1.8.0-0 today and should
be able to switch on space management. SARA and IN2P3
have been invited to follow their example soon, since a problem discovered
while using lcg-cp and the tape system at SARA is cured by this version.
Essentially dcache testing and upgrades are proceeding as planned.
LHCb has performed FTS tests to SRM v2.2 at IN2P3 and these went smoothly.
There were problems with FTS transfers between CERN (SRM v2.2) and CNAF
(CASTOR SRM v2.2) but this seems due to a misconfiguration of the FTS
channel.
LHCb also tried testing lcg-utils with the following results:
NIKHEF - OK
CNAF - OK (CASTOR)
IN2P3 - problems copying data from WN; site informed. They can dccp from
CERN UI out of Lyon without problems though.
FZK - had problems because the test endpoint was not published in the
production BDII (although it is today) and because of a mismatch
between the version of gLite (3.0.2) installed on the WNs at FZK and that
used by the distribution of the latest release of gfal/lcg-utils
that Flavia made available as a tarball to LHCb.
There is now an agreement on what information is to be
published in the glue schema.
An example has been published in the GSSD pages:
https://twiki.cern.ch/twiki/bin/view/LCG/GSSDGLUEExample
A new set of SAM scripts is available to check that a site publishes
information accordingly to the example.
The SAM scripts are run several times per day and the results (and
explanation of the errors occurred) are published:
http://lxdev25.cern.ch/s2test/bdii/s2_logs/
Flavia has circulated this information to the sites and invited them to
contact her in case of problems.
Under AOB GO said that Timur Perelmutov will be back in Europe this
Sunday.
It was agreed to skip the November 5 meeting as there will be several
absences. Next meeting will hence be Nov 12 at 15.30 CET.