Online DQM: replace the hard-coded output directory name of event display clients with an input argument

[syuvivida]

PR description:

We are working on the upgrade of online DQM machines [0][1]. There will be a few months that we share the same CMSSW code between the new and the current machines.
In the current (old) DQM machines, the disks of bu-c2f11-09-01 and bu-c2f11-13-01 are mounted on our fu machines as /fff/BU0. Event display clients visualization-live and visualization-live-secondInstance produce output root files at /fff/BU0/output.

However, the mount point (path) has changed in the new online DQM machines [1]. In order to use the same event display client codes for both old and new machines and also to make the path name more flexible, we replace the output path with an input argument (with a default value of /fff/BU0/output). The old machines will use an old hltd version and take the default value of the argument outputBaseDir, while the input values for the new machines will be determined by hltd and startDqmRun.sh.

We also plan to have a test of data transfer from DAQ to the new online DQM machines during the TS1 [2] and deploy this PR in the new online DQM machines. The update of hltd and startDqmRun.sh is already done by @smorovic

[0] twiki about the upgrade of DQM machines
[1] JIRA ticket that includes the communication with DAQ
[2] JIRA ticket of the tests during TS1

PR validation:

• This PR has been tested at the current (old) DQM playback machines and ran without problem when using the default value of the input argument.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-41986/35953

• This PR adds an extra 16KB to repository

[cmsbuild]

A new Pull Request was created by @syuvivida for master.

It involves the following packages:

• DQM/Integration (dqm)

@nothingface0, @emanueleusai, @cmsbuild, @pmandrik, @syuvivida, @tjavaid, @micsucmed, @rvenditti can you please review it and eventually sign? Thanks.
@threus, @batinkov, @francescobrivio this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

[emanueleusai]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e7f77b/33205/summary.html
COMMIT: e472f88
CMSSW: CMSSW_13_2_X_2023-06-16-1100/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/41986/33205/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 31 lines to the logs
• Reco comparison results: 5 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3196062
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3196037
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 207 log files, 159 edm output root files, 48 DQM output files
• TriggerResults: no differences found

[emanueleusai]

+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 now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)

[rappoccio]

+1