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Feature #1316

Snapshot histogram file

Added by Mark Messier about 9 years ago. Updated almost 3 years ago.

Status:
Feedback
Priority:
Normal
Assignee:
-
Category:
I/O
Target version:
-
Start date:
05/19/2011
Due date:
% Done:

0%

Estimated time:
Scope:
Internal
Experiment:
NOvA
SSI Package:
art
Duration:

Description

Often when running a long job, I would like to get a "snapshot" of the ntuples and histograms to see how the job is going or to make progress on tuning analysis root macros. Would it be possible for the TFileService to respond to, say, SIGUSR1 or SIGUSR2, causing it to write the histograms and ntuples to a root file which gets properly closed for use, and then continue on in the job?

Related issues

Related to art - Feature #1758: Histograms in shared memoryClosed09/01/2011

Related to art - Feature #1759: Periodic refreshing of histogram filesAccepted09/01/201109/30/2013

Related to art - Bug #1340: Allow creation of subdirectories with TFileServiceClosed06/04/2011

Related to art - Feature #1338: Output histograms don't obey custom ROOT styleClosed06/04/201109/30/2013

History

#1 Updated by Walter E Brown over 8 years ago

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

Should be part of the larger review of the TFileService system.

#2 Updated by Christopher Green about 7 years ago

  • Status changed from Accepted to Assigned
  • Scope set to Internal
  • Experiment NOvA added
  • SSI Package art added

#3 Updated by Christopher Green about 7 years ago

  • Status changed from Assigned to Feedback

This needs more discussion before we can be sure enough of the requirements to give a reasonable time estimate.

#4 Updated by Kyle Knoepfel over 5 years ago

  • Target version set to 521

#5 Updated by Kyle Knoepfel almost 3 years ago

  • Target version deleted (521)

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