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Feature #1759

Periodic refreshing of histogram files

Added by Mark Messier almost 8 years ago. Updated over 1 year ago.

Status:
Accepted
Priority:
Normal
Assignee:
-
Category:
I/O
Target version:
-
Start date:
09/01/2011
Due date:
09/30/2013
% Done:

0%

Estimated time:
40.00 h
Scope:
Internal
Experiment:
NOvA
SSI Package:
art
Duration: 761

Description

I am working on software to perform online monitoring of data from our DAQ through a data dispatcher. This job will connect to the dispatcher stream and process events indefinitely (ideally if the job never crashed it could be started once in the lifetime of the experiment). However, I would like this job to periodically close its histogram file, reset all the histograms in memory (although could easily be accomplished in user code), and open a new file. This would occur, say, at subrun boundaries. As I understand it, in the current framework, the histogram files are only closed at the endJob stage and there is no provision for starting a fresh file.


Related issues

Related to art - Feature #1758: Histograms in shared memoryClosed2011-09-01

Related to art - Bug #1340: Allow creation of subdirectories with TFileServiceClosed2011-06-04

Related to art - Feature #1316: Snapshot histogram fileFeedback2011-05-19

History

#1 Updated by Walter E Brown over 7 years ago

  • Category set to I/O
  • Status changed from New to Accepted

Should be considered in context of the intended TFileService review.

#2 Updated by Christopher Green almost 6 years ago

  • Due date set to 09/30/2013
  • Target version set to 1.09.00
  • Estimated time set to 40.00 h
  • Scope set to Internal
  • Experiment NOvA added
  • SSI Package art added

#3 Updated by Christopher Green over 5 years ago

  • Target version changed from 1.09.00 to 521

#4 Updated by Kyle Knoepfel over 2 years ago

Is NOvA still interested in this feature?

#5 Updated by Kyle Knoepfel over 1 year ago

  • Target version deleted (521)


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