cmssw: DiMuonMassBiasClient does not support concurrent lumis
Many workflows in CMSSW_12_5_X_2022-08-24-1100 fail with
----- Begin Fatal Exception 24-Aug-2022 15:57:39 CEST-----------------------
An exception of category 'ModulesSynchingOnLumis' occurred while
[0] Calling beginJob
Exception Message:
The framework is configured to use at least two streams, but the following modules
require synchronizing on LuminosityBlock boundaries:
DiMuonMassBiasClient ALCARECOTkAlDiMuonMassBiasClient
The situation can be fixed by either
* modifying the modules to support concurrent LuminosityBlocks (preferred), or
* setting 'process.options.numberOfConcurrentLuminosityBlocks = 1' in the configuration file
----- End Fatal Exception -------------------------------------------------
About this issue
- Original URL
- State: closed
- Created 2 years ago
- Comments: 16 (16 by maintainers)
https://github.com/cms-sw/cmssw/pull/39173/commits/dcc486800196d06e26f8cf9e4efc926e86a1e169 in https://github.com/cms-sw/cmssw/pull/39173 should solve for the time being. In the long term we’ll need a better solution.