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Bug #7068

xrootd broken in art v1_12_00

Added by Herbert Greenlee almost 5 years ago. Updated almost 5 years ago.

Status:
Closed
Priority:
Urgent
Assignee:
Category:
Third Party
Target version:
Start date:
09/24/2014
Due date:
% Done:

100%

Estimated time:
Spent time:
Occurs In:
Scope:
Internal
Experiment:
MicroBooNE
SSI Package:
Duration:

Description

In art v1_12_00 art helper programs config_dumper and sam_metadata_dumper always terminate with a segfault when reading xrootd urls.

sam_metadata_dumper root://fndca1.fnal.gov:1094/pnfs/fnal.gov/usr/uboone/scratch/uboonepro/v02_05_01/mergeana/prod_muminus_0.5-5.0GeV_25degf_uboone/75773_0/prod_muminus_0.5-5.0GeV_25degf_uboone_75700_0_gen_75709_0_g4_75715_0_detsim_75744_0_reco2D_75752_0_reco3D_75773_0_merged.root {
"root://fndca1.fnal.gov/pnfs/fnal.gov/usr/uboone/scratch/uboonepro/v02_05_01/mergeana/prod_muminus_0.5-5.0GeV_25degf_uboone/75773_0/prod_muminus_0.5-5.0GeV_25degf_uboone_75700_0_gen_75709_0_g4_75715_0_detsim_75744_0_reco2D_75752_0_reco3D_75773_0_merged.root": {
"applicationFamily": "art",
"applicationVersion": "v02_05_01",
"process_name": "Ana",
"fclName": "standard_ana_uboone.fcl",
"fileFormat": "root",
"group": "uboone",
"ubProjectName": "prod_muminus_0.5-5.0GeV_25degf_uboone",
"ubProjectStage": "mergeana",
"ubProjectVersion": "v02_05_01",
"dataTier": "reconstructed",
"streamName": ,
"endTime": 1409240464,
"eventCount": 100,
"fileType": "mc",
"firstEvent": 1,
"lastEvent": 100,
"parent": "prod_muminus_0.5-5.0GeV_25degf_uboone_75700_0_gen_75709_0_g4_75715_0_detsim_75744_0_reco2D_75752_0_reco3D.root",
"run": 1,
"runType": "physics",
"startTime": 1409240273,
"subRun": 1
}
}
Segmentation fault

History

#1 Updated by Christopher Green almost 5 years ago

  • Category set to Third Party
  • Status changed from New to Feedback
  • Assignee set to Christopher Green

While segfaults are not to be encouraged by any means, this is an at-exit tear-down problem only: the application has completed everything you asked it to do, and the file has been closed. This problem was supposed to have been fixed with ROOT 5.34.21, but apparently this was an incomplete fix (pre-5.34.21, ROOT itself segfaulted on exit too if a file was opened from xrootd).

Are you seeing other effects than just segfault-on-exit?

If not, I would suggest that we report this to the ROOT team and take the fix for the next version of the art suite when the next version is ready. I'm not sure it's worth a high priority, special release of art, but we can certainly discuss it at the stakeholder meeting this afternoon.

#2 Updated by Lynn Garren almost 5 years ago

  • Category deleted (Third Party)
  • Status changed from Feedback to Assigned
  • Assignee deleted (Christopher Green)

art v1_12_01 is built. root v5_34_21a with xrootd v3_3_4b is installed on /grid/fermiap/products/larsoft and a new larsoft release will be available later today.

#3 Updated by Christopher Green almost 5 years ago

  • Category set to Third Party
  • Status changed from Assigned to Resolved
  • Assignee set to Lynn Garren
  • Target version set to 1.12.01
  • % Done changed from 0 to 100

#4 Updated by Christopher Green almost 5 years ago

Resolved with release of art suite 1.12.01 including downgrade to xrootd 3.3.4.

#5 Updated by Lynn Garren almost 5 years ago

  • Status changed from Resolved to Closed


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