Fail comparison of the empty simPVZ (MTD vertices) in PR test

[srimanob]

This issue is to follow the issue of always fail comparison of the empty simPVZ histogram under MTD vertices.

FYI @fabiocos @perrotta I think we did have a short discussion on this before but I can't find it. We can close this issue if already open.

[cmsbuild]

A new Issue was created by @srimanob Phat Srimanobhas.

@Dr15Jones, @perrotta, @dpiparo, @rappoccio, @makortel, @smuzaffar, @qliphy can you please review it and eventually sign/assign? Thanks.

cms-bot commands are listed here

[tvami]

assign upgrade

[cmsbuild]

New categories assigned: upgrade

@AdrianoDee,@srimanob you have been requested to review this Pull request/Issue and eventually sign? Thanks

[perrotta]

assign @cms-sw/mtd-dpg-l2 @cms-sw/dqm-l2

[makortel]

assign dqm, mtd-dpg

[cmsbuild]

New categories assigned: dqm,mtd-dpg

@jfernan2,@fabiocos,@ahmad3213,@parbol,@micsucmed,@rvenditti,@emanueleusai,@pmandrik you have been requested to review this Pull request/Issue and eventually sign? Thanks

[fabiocos]

I am busy with other issues on the short term, but I am aware of this problem, and I'll come back to this asap.

[perrotta]

It look like that after the merging of #39490 there are no more failing comparisons in the tests for the MTD vertices.
This issue can be closed then

[srimanob]

+upgrade

[makortel]

These symptoms occurred again in #41309 (comment) for workflows 39496.0 and 39500.0

[slava77]

differences in empty plots are probably from NaNs

[fabiocos]

the fix for this issue was merged in CMSSW_12_6_0_pre3 , see https://cmssdt.cern.ch/SDT/ReleaseNotes/CMSSW_12/CMSSW_12_6_0_pre3.html
The latest problem appears to happen in CMSSW_12_5_X integration, where the fix was not yet merged.

[makortel]

The latest problem appears to happen in CMSSW_12_5_X integration, where the fix was not yet merged.

Thanks, good point. So the issue is kind of expected, but possibly not worth of addressing.