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Bug #5718

Mystery MINOS DAQ outage of March 2014

Added by Peter Shanahan over 5 years ago. Updated over 5 years ago.

Status:
New
Priority:
High
Assignee:
-
Start date:
03/19/2014
Due date:
% Done:

0%

Estimated time:
component:
base
First Occurred:
Occurs In:
Experiment:
MINOS
Stakeholders:

MINOS
SCD Networking
PPD Management
SCD Management
PPD/EED/Online Support
MINERvA

Duration:

Description

MINOS DAQ suffered timing problems at both detectors, starting Sunday, March 9. The problem went away after the Near Detector was temporarily removed from the network.

It's still a mystery, and where wondering when it might come back...

Before we add much more to this Issue: does it inappropriately duplicate functionality that exists elsewhere? I'll give my own answers, but feel free to counter them:

1) It does not duplicate any experiment's ECL, since that is a time-based collection of information. It's a bit like standing on a bridge over a river watching things float by. Of course, search functions make that somewhat better, but it's never possible to get a complete overview of the history of an issue that took place over more than a shift, once a week or two have passed, from ECL. But one certainly can add links to specific ECL entries where appropriate.

2) It does not duplicate Service Now, since that is more service-oriented ("here's a problem, please fix it"). The purpose of this issue in redmine is to keep people actively working on the problem, and line management, informed, and aggregate information in a central place. And I believe redmine allows more flexibility in the kind of information that can be added, such as files, etc.

History

#1 Updated by Peter Shanahan over 5 years ago

Has the tcpdump baseline been taken yet? Should the baseline files live here?

#2 Updated by Donatella Torretta over 5 years ago

tpcdump baseline files have been taken. They have been uploaded into Minos-Online Redmine page.
I put a copy in Files.

#3 Updated by Donatella Torretta over 5 years ago

I meant "this" Files.

#4 Updated by Peter Shanahan over 5 years ago

I guess I forgot this was in the MINOS redmine. Then I would think this is an inappropriate duplication, unless someone has an argument otherwise.

Can you add me as a watcher to that MINOS one, and I'll close this? Thanks,
Peter



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