Production to merge histograms are slightly different from normal data processing ones. There are two different type of input files to consider: BRUNELHIST and DAVINCIHIST, so in the Input Data section of the request, it must be selected both file types.
- Screenshot of the Histo Merging request:
The template to choose is everyThingElse_run.py. Type
HistoMerge as production to be launched,
GroupSize must be equal to 999999, as we create one single merged file per run. Output Data Storage Element must be CERN-HIST-EOS. The plugin name must be
ByRunSizeWithFlushRootMerging and the removeInputs flag must be set to True in order to delete the unmerged files.
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MarcoCorvo - 2016-10-19