Disable SingleJet HLT validation for HI to prevent crashes

[kkrajczar]

The HI RelVal workflows (for instance, 140.2) crash in CMSSW_7_4_0_pre7:

%MSG-e FatalSystemSignal: HLTJetMETValidation:SingleJetPathVal35 17-Feb-2015 13:26:10 CET Run: 1 Event: 1
A fatal system signal has occurred: segmentation violation
%MSG

After a discussion with the HLT Jet developers in HIN, it turns out that the sequence causing the crash could be simply disabled for the time being, the HI Jet triggers are actively being re-worked for this year's PbPb run.

@BetterWang, @yetkinyilmaz, and @richard-cms probably want to follow this PR.

[cmsbuild]

A new Pull Request was created by @kkrajczar (Krisztian Krajczar) for CMSSW_7_4_X.

Disable SingleJet HLT validation for HI to prevent crashes

It involves the following packages:

Validation/RecoHI

@cmsbuild, @danduggan, @nclopezo, @deguio can you please review it and eventually sign? Thanks.
@RylanC24, @richard-cms this is something you requested to watch as well.
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@Degano you are the release manager for this.
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[deguio]

please submit to 75x as well.
thanks,
F.

[kkrajczar]

Hi Federico,

The PR for 75X is #7819.

Cheers,
Krisztian

[cmsbuild]

+1
Tested at: ef3cf52
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7811/2651/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7811/2651/summary.html

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @ktf, @smuzaffar

[davidlange6]

+1