Minutes of NAF User Committee meeting from 10.12.2008 
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Present: Steve Aplin (ILC), Wolfgang Ehrenfeld (ATLAS), Andreas
Gellrich (NAF), Andreas Haupt (IT), Carsten Hof (CMS), Yves Kemp (IT),
Kai Leffhalm (NAF), Niels Meyer (ILC), Hartmut Stadie (CMS)

Excused: Jan Erik Sundermann (ATLAS)


1. News from the chair

General announcements:

Andreas Haupt and Yves Kemp are appointed as technical NAF
coordinators.

From Grid board:

In the second week of February there will be a Alliance Grid Workshop
at Munich.


2. Action items:

New date/time for monthly meeting

As expected this is not easy. Still, the second Wednesday each month
is the best day for a meeting. The time will be announce by WE as soon
as everybody doodled his preference.

gsidcap:

YK estimated the overhead in dCache access using gsidcap compared to
dcap protocol of around 10%. Action item for more details for NAF,
e.g. is the overhead per file/data volume.

CMS confirmed that the CMS software has no problems with gsidcap.

Registry web service:

The service is working fine but the official address is still
missing. Kai will follow up.

Batch Monitoring:

The capacity/accounting plot from the batch monitoring web page is not
accurate enough, as it samples running jobs every 5 minutes. This
needs to be fixed in order go have an accurate number of the batch
efficiency. WE fill follow up with NAF admins.

Open or Running Action Items:

NAF: documentation for batch exit/failure codes
NAF: details on overhead between dcap/gsidcap access, e.g. 1 GB file
NAF: document software updates/changes
NAF: nominal batch capacity static/dynamic in monitoring
NAF: documentation for batch exit/failure codes

3. Status report

The report was given by YK. Slides are on the agenda page. A few
things were discussed:

Software update documentation:

After some discussion 'rpm -qa' is not enough for the experiment
admins to get a complete picture of the NAF software status. In
addition there is software outside rpm packages. Documentation of
version updates are important for admins and users.

WE will provide a proposal for the content of a software status web
page.


4. Feedback from Aachen Meeting

The user meeting at the Aachen meeting was well attended and some
feedback given. See the agenda of the meeting for the slides. Somebody
from CMS requested a general HN forum, but the impression is that
there are enough discussion forums with in the experiments. Some Atlas
user complained about the long compile time. This problem is under
investigation.

The plenary talk was given by WE. See the agenda of the meeting for
slides.


5. AOB:

For the NAF ILC and Calice are treated the same under one group ILC. 


Additions:

The meeting will be kept on every second Wednesday each month, but
will start already at 1 pm.