Hidden condition data access outside the GT

[katilp]

Testing on the VM without access to frontier servers, the pfnano jos fails with

----- Begin Fatal Exception 25-Jan-2024 09:15:21 CET-----------------------
An exception of category 'Incomplete configuration' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing ESSource: class=PoolDBESSource label='loadRecoTauTagMVAsFromPrepDB'
Exception Message:
Did not find frontier-connect in calib-data section in /cvmfs/cms.cern.ch/SITECONF/local/JobConfig/site-local-config.xml
----- End Fatal Exception -------------------------------------------------

So this code reads condition data not in the Global Tag. The test jobs in the container do not fail because they have access to frontier servers as defined in the /cvmfs/cms.cern.ch/SITECONF/local/JobConfig/site-local-config.xml file of the container even if we make them read the Global Tag from the local database file.

For the sake of completeness, we should

• find out which database is being read
• check if its contents are different in the Global Tag
• if not, modify that code to read it from the GT instead of plain condition db and add it to this repository
• if yes, extract the database and make it available on /cvmfs similarly as done for the HI condition data "overrides", see CMS: testing HI GT cernopendata/data-curation#174

[katilp]

The culprit is here

CondDBTauConnection = CondDB.clone( connect = cms.string( 'frontier://FrontierProd/CMS_CONDITIONS' ) )

and loadRecoTauTagMVAsFromPrepDB therein.

The database records in question are

GBRWrapperRcd
PhysicsTGraphPayloadRcd
PhysicsTFormulaPayloadRcd

NB: there might be more of these, the job fails at the first connection.