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Bookkeeping meeting, December 6th 2007

Present: R.McNulty, T.Kechadi, Z.Mathe (Dublin), M.Bargiotti, Ph.Charpentier (chair, minutes), B.Koblitz, E.Lanciotti, A.Maier, S.Paterson, R.Santinelli, A.C.Smith (CERN), A.Tsaregorodtsev (Marseille, on the phone)

The aim of the meeting was to set the scope of the project, review the current situation and existing developments and define the topics of work. The agenda can be found here

Current bookkeeping system

Marianne presented the current status of the [[http://indico.cern.ch/getFile.py/access?contribId=0&resId=1&materialId=slides&confId=24813][system], which is also in slides from Carmine Cioffi.

There were discussions on the understanding of the actual content of the views (roottree and JobFileInfo tables). The understanding was that roottree contains for each file an entry with all parameters that queries can be made on. JobFileInfo is a table for each file containing the most usual metadata for that file.

AMGA is used as an access layer to the actual Oracle database. It implements authentication as well as an insulation from the actual backend. The actual BK schema is based on the generic AMGA schema.

Marianne reviewed the services that form the BK system:

  • BkkReceiver: receives XML files from jobs, already using the DISET transport. Currently the implementation for storing the queries is based on the file system. This should be ported to a RequestDB within DIRAC3

  • BkkManager: it checks the consistency of the XML file, in particular if referring to jobs not yet entered in the BK, the XML file is put in hold (in a special directory). This request will be treated after all requests have been treated. The main role (besides checking for inconsistent or missing info) is to sort the entries in the order in which they should be inserted. In the DIRAC3 framework, this should become an agent

In construction...

-- PhilippeCharpentier - 10 Dec 2007

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Topic revision: r1 - 2007-12-10 - PhilippeCharpentier
 
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