[12_2_X] Set usedFallback properly, silence file closing printouts in StatisticsSenderService

[makortel]

PR description:

This PR is a combined backport of #36379 and #36403. I think these make sense given the observation of #36375.

PR validation:

None

[cmsbuild]

A new Pull Request was created by @makortel (Matti Kortelainen) for CMSSW_12_2_X.

It involves the following packages:

• IOPool/Input (core)
• Utilities/StorageFactory (core)

@cmsbuild, @smuzaffar, @Dr15Jones, @makortel can you please review it and eventually sign? Thanks.
@wddgit this is something you requested to watch as well.
@perrotta, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

[makortel]

@cmsbuild, please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-34bfe6/21105/summary.html
COMMIT: da2766a
CMSSW: CMSSW_12_2_X_2021-12-08-1100/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/36425/21105/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 12 differences found in the comparisons
• DQMHistoTests: Total files compared: 42
• DQMHistoTests: Total histograms compared: 3250608
• DQMHistoTests: Total failures: 11
• DQMHistoTests: Total nulls: 1
• DQMHistoTests: Total successes: 3250574
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -0.004 KiB( 41 files compared)
• DQMHistoSizes: changed ( 312.0 ): -0.004 KiB MessageLogger/Warnings
• Checked 177 log files, 37 edm output root files, 42 DQM output files
• TriggerResults: no differences found

[makortel]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_12_2_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_12_3_X is complete. This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)

[perrotta]

+1

• Fixes worth being backported in 12_2_X