US ATLAS Computing Integration and Operations

Wednesday 16 Sept 2015, 13:00 → 15:10 US/Eastern

virtual room (your office)

Notes and other material available in the US ATLAS Integration Program Twiki

13:00 → 13:15 Top of the Meeting

Speakers: Michael Ernst, Robert William Gardner Jr (University of Chicago (US))

Benchmarking

WLCG Technical Forum

13:15 → 13:35 xAOD Analytics

Speaker: Ilija Vukotic (University of Chicago (US))

Analyzing xAOD monitoring.pdf

Analyzing xAOD monitoring.pptx

xAOD analytics

13:35 → 13:45 Production

Speakers: Kaushik De (University of Texas at Arlington (US)), Mark Sosebee (University of Texas at Arlington (US))

shift-summary-9_16_15.pdf

shift-summary-9_9_15.pdf

13:45 → 13:50 Data Management

Speaker: Armen Vartapetian (University of Texas at Arlington (US))

• Notes there was some issue with GGUS ticketing system - apparently there is an intermittent issue (automatic re-opening) with the OSG-GGUS  link. Will follow up with Rob Quick.
• Storage allocations and reporting is fine.
• Disk clean-up is going on right now.  LGD reductions with users. 100 TB deletion at BNL, 40-50 TB at AGLT2.

 

 

13:50 → 13:55 Data transfers

Speaker: Hironori Ito (Brookhaven National Laboratory (US))

13:55 → 14:00 Networks

Speaker: Dr Shawn McKee (University of Michigan ATLAS Group)

 

Begin forwarded message:

From: Shawn McKee <smckee@umich.edu>

Subject: [Throughput-l] NOTES: NA Throughput Meeting Sept 15, 2015

Date: September 15, 2015 at 2:48:52 PM CDT

To: throughput-l@lists.bnl.gov

 

North American Throughput Meeting --- 15-Sep-2015

======================================

 

NOTE: Meeting dates will change next week...see notes below.

 

Attending: Shawn, Dave, Philippe, Horst, Andy, Mark

Excused: Jason

 

 

AGENDA: 

0 ) Agenda Review/Update 

 

1) perfSONAR  

    i) Status report on v3.5rc2, MaDDash and upcoming release of 3.5 (Andy).  Andy noted release date of September 28 is set for v3.5

       Software changes:  Philippe identified a memory leak in the registration demon (happened with RC2) and Andy produced a fix and put it in the repo.

       Cleaning up the docs in prep for the release.  Preparing for the perfSONAR face-to-face meeting.  MaDDash 2.0 coming up later.

 

   ii) Problem reports?  No reported problems with the production.  Horst reports /var is filling; /var/log/perfSONAR is the culprit.  Horst found there were

        lots of very old log files which he will clear up.

 

  iii) Status of the testbed instances running 3.5rc2...any problems? Shawn reported on failed yum update.   Dave reported that the last problem he 

        reported was due to the memory problem Philippe and Andy found/fixed.  Philippe reported that using Chrome allows you to only view one graph but any succeeding

        requests fail.  Have to refresh to get another screen.  Firefox works.  Problem was noted on both Windows 7 and Windows 10.

 

2) Status of OSG Datastore and Network Services (Shawn)

      OSG MaDDash at: http://psmad.grid.iu.edu/maddash-webui/   Shawn reported that the OSG Network Datastore is now "in production".  Some minor issues still present but night major.

      Currently the OSG ITB instance is testing new code from Edgar that will be migrated to production after 1 week (assuming no problems are seen).

   

 

3) Round-table about throughput, network, monitoring and new issues to track.   Garhan asked Andy about BWCTL2 in perfSONAR Toolkit in 3.5. Andy noted it should be there

 (along with the new corresponding user).  May eventually be a replacement for BWCTL but is currently very "beta".  Shawn noted there was a meeting about Saul's FTS work

 today with the FTS developers.  Saul has some suggested tunings for FTS to try to improve things.  May get a future report on how those suggestions panned out.

 

4) AOB and next meeting.  Garhan noted the MaDDash on psmad.grid.iu.edu had bad links to the OMD instance...uses "http" instead of "https".  Shawn will notify OSG to get the links

     updated.  The current 2-week cadence of our throughput meetings needs to be shifted to avoid lots of conflicts for Shawn.  There were no objections to

     moving the meeting to the alternate 2-week cycle starting next week.  Our next meeting will be Tuesday September 22, 2015 from 3-4 PM Eastern.

 

Send along any additions or corrections to these notes via the mail list.  Thanks,

 

Shawn

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14:00 → 14:05 FAX

Speakers: Ilija Vukotic (University of Chicago (US)), Wei Yang (SLAC National Accelerator Laboratory (US))

14:05 → 15:05 Site Reports

14:05 BNL

Speaker: Michael Ernst

14:10 AGLT2

Speakers: Robert Ball (University of Michigan (US)), Dr Shawn McKee (University of Michigan ATLAS Group)

14:15 MWT2

Speakers: David Lesny (Univ. Illinois at Urbana-Champaign (US)), Lincoln Bryant (University of Chicago (US))

14:20 NET2

Speaker: Prof. Saul Youssef (Boston University (US))

14:25 SWT2-OU

Speaker: Dr Horst Severini (University of Oklahoma (US))

14:30 SWT2-UTA

Speaker: Patrick Mcguigan (University of Texas at Arlington (US))

14:35 WT2

Speaker: Wei Yang (SLAC National Accelerator Laboratory (US))

15:05 → 15:10 AOB