adapt tau validation for miniAOD-only workflows

[slava77]

this PR was initially triggered by observation of numerous printouts in re-miniAOD workflows like

 Reference collection not found while running TauValidationMiniAOD.cc

This PR replaces cerr (not allowed for production/centrally running code) with a LogWarning.
It looks like the fix to the underlying issue is simple, to add the produceDenoms to the prevalidationMiniAOD.

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-29788/15251

• This PR adds an extra 20KB to repository

• There are other open Pull requests which might conflict with changes you have proposed:

  • File Configuration/StandardSequences/python/Validation_cff.py modified in PR(s): Deprecate convertToUnscheduled() customize function and --runUnscheduled argument of cmsDriver #29630

[cmsbuild]

A new Pull Request was created by @slava77 (Slava Krutelyov) for master.

It involves the following packages:

Configuration/StandardSequences
Validation/RecoTau

@andrius-k, @kmaeshima, @schneiml, @cmsbuild, @silviodonato, @franzoni, @jfernan2, @fioriNTU, @fabiocos, @davidlange6 can you please review it and eventually sign? Thanks.
@fabiocos, @makortel, @felicepantaleo, @GiacomoSguazzoni, @rovere, @VinInn, @Martin-Grunewald, @lecriste, @dgulhan, @slomeo this is something you requested to watch as well.
@silviodonato, @dpiparo you are the release manager for this.

cms-bot commands are listed here

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/6196/console Started: 2020/05/09 07:53

[cmsbuild]

+1
Tested at: 1013ffe
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-24c159/6196/summary.html
CMSSW: CMSSW_11_1_X_2020-05-08-2300
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-24c159/6196/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 34
• DQMHistoTests: Total histograms compared: 2697527
• DQMHistoTests: Total failures: 41
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2697167
• DQMHistoTests: Total skipped: 319
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 33 files compared)
• Checked 147 log files, 16 edm output root files, 34 DQM output files

[jfernan2]

+1

[silviodonato]

+operations

[silviodonato]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will be automatically merged.