TWiki> AtlasCanada Web>GridActivities>ATLASCanadaTier-2Operations>T2WeeklyReport20100928 (2010-09-29, RyanTaylor) EditAttach

Tier1 and Tier-2 Weekly Report 2010-09-28

General News

  • ADC News [20100928]
    • This Week
      • ADC Weekly [20100927]
      • WLCG Management Board [20100928]
      • libaio package dependency for releases version 16
        • ACTION ITEM: sites are requested to comment on the installation of this rpm on their site WNs
      • Cream CE Planning Information
        • ACTION ITEM sites are requested to provide before Friday this week their plans and status in regards to CREAM CE deployment
        • needed as input for CA cloud squad report to the next ADC Weekly meeting [20101004]
  • CA Cloud Squad Actions [20100928]
    • DaTRI requests approved / processed (last week)
      • CA-SCINET-T2_LOCALGROUPDISK: 0 / 116 GB
      • CA-VICTORIA-WESTGRID-T2_LOCALGROUPDISK: 1380 / 1821 GB
    • ATLAS Site Exclusion Savannah entries
    • queue operations
      • TRIUMF-LCG2: analysis and production queues set to test [20100927] by cloud squad due to scheduled downtime
        • validated and returned to online status by cloud squad (analysis) [20100927] and by ADCoS shifters (production) [20100927]
      • CA-SCINET-T2: analysis and production queues set to test [20100924] by cloud squad due to unscheduled downtime
        • validated and returned to online status by ADCoS (analysis) [20100925] and by ADCoS shifters (production) [20100926]
    • cloud squad related savannah and ggus tickets [20100921]
      • here
    • Open Issues and Ongoing Discussions:
      • HammerCloud tests of TRIUMF completed via panda to compare direct i/o via dcap, FileStager and full file copy
      • issue of sites within Cloud None within the production dashboard [20100829]
        • issue raised to ADC operations email list given that there was no ADC Weekly meeting yesterday
        • reply from ADC monitoring coordinator (A. Read) is that this long-standing problem is known and being worked on, but is difficult to fix
        • this problem will be on the agenda for the next ADC monitoring meeting scheduled for next week
        • Previously Reported Information on this topic:
          • escalate query to ATLAS dashboard support regarding missing CA-SCINET-T2 site in the ARDA dashboard production activity display [20100216]
      • CA-VICTORIA-WESTGRID-T2 site missing from the ATLAS dashboard SAM Visualization page [20100824]
      • Pending action: update values for maxinputsize for SFU-LCG2 (snowpatch and bugaboo) within panda schedconfig [20100817]
      • HammerCloud tests of CA clouds sites is planned to be resumed soon to help measure site performance and identify any site setup bottlenecks [2010803]
      • discussion with DDM operations regarding centrally performed space cleaning policy and procedures [20100721]
      • submitted feature request to DaTRI to allow for disabling of auto-approval for LOCALGROUPDISK transfer requests [20100720]
      • CA-VICTORIA-WESTGRID-T2 site analysis queues marked online by Cloud Squad (20100709)
        • production queue kept in test state pending investigation of fortran runtime error "permission denied" within software release area (20100708) [SOLVED]
          • resolved by changing WN client NFS mounts to v3 from original NFSv4 (root cause within NFSv4 still unknown) [OPEN]
      • ROOTSYS truncated at 127 characters issue [20100608]
        • http://savannah.cern.ch/bugs/?68546 (open)
        • currently affecting Victoria (Tier3) and CA-SCINET-T2
        • varying character lengths below and above 127 characters show variable success and failure
        • related issue: user build jobs failing at CA-SCINET-T2 [20100511]
          • follow-up with site in regards to missing rpm installation; missing rpms added but problem is still occurring [20100518]
      • reviewing draft Squad How-To and providing feedback [20100407]
        • also contains useful information for sites
      • ongoing discussions with ADC experts regarding regional production activity and how to accommodate it cleanly within both the production system and the CA cloud and site operations [20100316]
      • running out of jobs at TRIUMF (and other CA cloud sites other than CA-SCINET-T2) [20100402]
        • "The problem may be due to the jet/group production task. Since these jobs have high priority, they are being sent to CA cloud, to the exclusion of lower prio jobs. Of course, they can only run at one site. So, other sites are running empty. Unanticipated side effect of running the task only at CA-SCINET-T2! Let me think how to solve it." K. De (ADC)
      • request submitted to Panda team for functionality to set site Panda queues offline automatically based upon scheduled outages/availability [20100216]
    • Outstanding Actions to Do:
      • follow-up information system publishing by dCache sites and use of FileStager within GangaRobot [20100111]
        • ie. dcap missing from TRIUMF and CA-ALBERTA-WESTGRID-T2 and so uses lcg-cp.

  • Security News [20100928]

  • Squid Deployment [20100928]
    • CA cloud Frontier and Squid deployment information (versions and network information)
    • SAM tests: (CA Link), (Aus Link): currently status as of this morning (WARN is ok) [2010928]
      • CA-ALBERTA-WESTGRID-T2 OK (both for local squid and backup to SFU)
      • CA-SCINET-T2: OK (both for local squid and backup to SFU)
      • CA-VICTORIA-WESTGRID-T2 OK (both for local squid and backup to CA-ALBERTA-WESTGRID-T2)
      • SFU-LCG2 OK (both CEs; both for local squid and backup to CA-VICTORIA-WESTGRID-T2)
      • ATLAS_AUSTRALIA - OK (OK for local squid and backup to CA-VICTORIA-WESTGRID-T2)
      • TRIUMF-LCG2 OK (ce1) OK (ce2) (local Frontier launchpad and BNL as backup)
      • VICTORIA-LCG2 OK (OK for local squid and backup to CA-VICTORIA-WESTGRID-T2)

SAM Results

  • nothing to report

APEL Accounting

APEL Publishing Status

apel-status-aus-20100928.png apel-status-ca-20100928.png

APEL Accounting Results

apel-statistics-aus-20100928.png apel-statistics-ca-20100928.png

Site Reports

Alberta

Recent Issues

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • See "Notes" section below

  • CA-ALBERTA-WESTGRID-T2 site status [20100928]
    • dCache SRM space usage discprepancy work-around scripts under investigation
      • comparing with alternative scripts from dCache team via Leslie that do not perform accesses to the companiondb which the site does not have
    • new WN image created with updated kernel to be deployed starting today as nodes become available
    • all 4 pool to pool migrations completed successfully in order to remove legacy iscsi dCache pools
      • all space tokens with the exception of LOCALGROUPDISK and MCDISK have been resized
        • the last changes will first require resolution of the dq2 versus srm space accounting discrepancy in order to correctly assign sufficient available space

Outstanding Issues

  • DDM: discrepancy between SRM and DQ2 usage (see above savannah) [20100511]
    • tests on postgres dump of dCache databases pending
  • additional open items being followed-up:
    • need to update to dCache golden release cycle from currently running 1.9.3-3 - targetting mid-September for upgrade
    • performance of fairshare trees configuration to be studied with WestGrid site admins in regards to priorities, non-NRAC allocations and effect upon priority of ATLAS jobs
    • network cabling maintenance planned for lighpath connection [postponed from 20100319]

SFU

Recent Issues

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • See "Notes" section below

Outstanding Issues

Victoria

Recent Issues

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • see "Notes" section below

Outstanding Issues

  • Occasionally some jobs arrive without stage-in .gpg files and have to be terminated. Cause unknown (20100928)

Toronto

Recent Issues

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • See "Notes" section below

  • various software release issues identified (20100921) and being followed-up by cloud squad via reinstallation attempts

Outstanding Issues

  • pilot issues [20100511]
    • significant number of immediately failing pilots for both TRIUMF and LMU factories
    • need to logon to WN directly and run the wrapper script by hand

  • dCache error investigations
    • Occassional "There is no file with pnfsid=.." errors (20100430)
      • under discussion with dCache experts at TRIUMF and elsewhere
    • dCache PutUseSpaceCallbacks errors (20100504)

  • large number of LFC related errors (20100404)
    • 'Put error: lfc_setfsizeg failed' and 'lfc_statg failed' and 'errstr = Bad magic number'

  • SciNet-TRIUMF lightpath network use and optimization [20100413]
    • BGP established on Force 10 router for link to TRIUMF [20100407]
      • Information Request: is a failover test to the ORAN planned? A: Not yet.

  • observed high rate of job failures for pilots submitted via CERN factory compared to those from LMU and TRIUMF [20100322]
    • different network path observed from CERN to Scinet compared to from LMU. Pilots from CERN halted pending investigation

  • discussion with pilot factory experts ongoing regarding interplay between condorg and globus gma, and local adjustments to correct the 33% of all pilots which fail on WNs * "submit-helper script running on host gpc-f108n039 gave error: cache_export_dir (/localstorage/lcg/home/prdatl83/.lcgjm/globus-cache-export.W29972) on gatekeeper did not contain a cache_export_dir.tar archive"

TRIUMF

Recent Issues

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • see "Notes" section below

Outstanding Issues

Australia-ATLAS

Recent Issues

  • summary of this weeks Savannah bugs and GGUS tickets for site:

  • production job issues
    • See "Production" Activities section below

  • analysis job issues
    • See "Notes" section below

  • configuring user mappings to give priority to local (AUS) users similiar to what is done on the CA-based sites
    • corresponding TRIUMF pilot changes being performed

Outstanding Issues

  • identified bug in SL53/54 x86_64 where a combination of specific LD_PRELOAD and LD_LIBRARY_PATH can cause core binaries (ls, rm etc.) to segfault

McGill

Recent Issues

  • no news

Production

Summary

CA Cloud Statistics Reference Link (Last Week) Overall Statistics Reference Link (Last Week)

  • Within the CA Cloud:
production-dashboard-ca-20100928.png

production-dashboard-none-vic-20100928.png production-dashboard-none-scinet-20100928.png

  • Within the CA Cloud (Panglia View):
atlas-production-ca-week-20100928.png atlas-analysis-ca-week-20100928.png

  • How we fared to other ATLAS sites during the past week:
production-dashboard-summary-20100928.png

  • Alternate Views (See link for last 3 days only):
panda-dashboard-summary-20100928.png

  • CA Cloud (last 3 days):
panda-dashboard-ca-20100928.png

Failed Jobs

  • From Panda Monitor (last week)
panda-dashboard-errors-aus-20100928.png panda-dashboard-errors-ca-20100928.png panda-dashboard-errors-sfu-20100928.png panda-dashboard-errors-triumf-20100928.png

  • From Dashboard (last week): 

name,rank,value
EXEPANDA_Release_MISSING,1,2300
TRFERROR,2,2246
EXEPANDA_DQ2_STAGEIN,3,692
EXEPANDA_JOBKILL_SIGTERM,4,432
EXEPANDA_JOBDISPATCHER_HEARTBEAT,5,100
EXEPANDA_GET_FAILEDTOGETLFCREPLICAS,6,14
TRF_UNKNOWN ,7,13
EXEPANDA_JOBKILL_BYPILOT,8,11
EXEPANDA_DQ2PUT_FILECOPYERROR,9,10
EXEPANDA_DQ2PUT_FILECOPYTIMEOUT,10,3
EXEPANDA_DQ2GET_INFILE,11,1

    • CA-ALBERTA-WESTGRID-T2 
name,rank,value
EXEPANDA_GET_SIZEMISMATCH,1,9
EXEPANDA_DQ2PUT_FILECOPYERROR,2,5
EXEPANDA_JOBKILL_SIGTERM,3,3
EXEPANDA_JOBKILL_BYPILOT,4,1

    • Australia-ATLAS 
name,rank,value
TRFERROR,1,154
EXEPANDA_GET_REPLICANOTFOUND,2,131
EXEPANDA_DQ2GET_INFILE,3,16
EXEPANDA_JOBKILL_BYPILOT,4,6
EXEPANDA_DQ2PUT_FILECOPYTIMEOUT,5,3
TRF_PYT_SYNTAX ,6,2



name,rank,value
TRFERROR,1,6
EXEPANDA_JOBDISPATCHER_HEARTBEAT,2,3
EXEPANDA_GET_FAILEDTOGETLFCREPLICAS,3,2
EXEPANDA_JOBKILL_BYPILOT,4,1
EXEPANDA_DQ2PUT_FILECOPYTIMEOUT,5,1
EXEPANDA_DQ2_STAGEIN,6,1

    • CA-SCINET-T2 (ce1) 
name,rank,value
EXEPANDA_JOBDISPATCHER_HEARTBEAT,1,32
EXEPANDA_PUT_LFCADDFILEINFOFAILED,2,3
EXEPANDA_GET_FAILEDTOGETLFCREPLICAS,3,2
EXEPANDA_JOBKILL_SIGTERM,4,2
EXEPANDA_DQ2PUT_FILECOPYERROR,5,1

    • CA-SCINET-T2 (ce2) 
name,rank,value
EXEPANDA_JOBDISPATCHER_HEARTBEAT,1,48
EXEPANDA_JOBKILL_SIGTERM,2,9
EXEPANDA_DQ2PUT_FILECOPYERROR,3,1
EXEPANDA_GET_FAILEDTOGETLFCREPLICAS,4,1

    • CA-VICTORIA-WESTGRID-T2 
name,rank,value
EXEPANDA_DQ2GET_INFILE,1,1535
TRF_SVRINIT ,2,440
EXEPANDA_DQ2_STAGEIN,3,34
EXEPANDA_DQ2PUT_FILECOPYERROR,4,8
EXEPANDA_PUT_LFCMODULEIMPORT,5,5
EXEPANDA_GET_FAILEDTOGETLFCREPLICAS,6,5
EXEPANDA_JOBKILL_SIGTERM,7,3
EXEPANDA_PUT_GLOBUSSYSTEMERROR,8,2
EXEPANDA_PUT_LFCADDFILEINFOFAILED,9,1
TRFERROR,10,1

You can find the meanings of the transform error codes on this link.

  • My Notes:
    • information missing in dashboard (production) still for CA-SCINET-T2.

  • Yuri's notes: (September21 - 27, 2010) 

- active tasks from PandaDB: 176
      -- distribution by cloud:
        CA:13 DE:26 ES:10 FR:19 IT:7 ND:19 NL:10 TW:3 UK:31 US:38

4) Thu Sep.23
   -> Cloud/site PROD efficiency ever<50% : -
   -> Cloud/site DDM efficiency  <50% : -
     ............................................  
+ CA/TRIUMFF-LCG2 job f./trf not installed in CE.GGUS 62360 verified:
  wn174-243 affected:ATLAS sw area full,moved to a non-full disk area.

4) Fri Sep.24
   -> Cloud/site DDM efficiency  <50% : ES,TW,CA/CA-SCINET-T2_PHYS-TOP
+ CA/CA-SCINET-T2_PHYS-TOP FT f./DEST./GENERAL_F./Protocol(s) specified 
  not supported:[gsiftp].GGUS 62418 verified:problem with a chiller at the
  site resolved.Test jobs successful-queues set back on-line Sep.26.

6) Sun Sep.26
- CA/CA-VICTORIA-WESTGRID-T2 job f./stage-in:dccp get timeouts.GGUS 62431
  assigned:there were some transfers to a pool that were hanging.Restarted

-- BryanCaron - 2010-09-27
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PNGpng apel-statistics-aus-20100928.png r1 manage 890.0 K 2010-09-28 - 15:12 BryanCaron  
PNGpng apel-statistics-ca-20100928.png r1 manage 1316.7 K 2010-09-28 - 15:12 BryanCaron  
PNGpng apel-status-aus-20100928.png r1 manage 15.6 K 2010-09-28 - 15:12 BryanCaron  
PNGpng apel-status-ca-20100928.png r1 manage 25.5 K 2010-09-28 - 15:12 BryanCaron  
PNGpng atlas-analysis-ca-week-20100928.png r1 manage 29.9 K 2010-09-28 - 15:15 BryanCaron  
PNGpng atlas-production-ca-week-20100928.png r1 manage 28.2 K 2010-09-28 - 15:15 BryanCaron  
PNGpng panda-dashboard-ca-20100928.png r1 manage 660.9 K 2010-09-28 - 15:28 BryanCaron  
PNGpng panda-dashboard-errors-aus-20100928.png r1 manage 927.1 K 2010-09-28 - 16:30 BryanCaron  
PNGpng panda-dashboard-errors-ca-20100928.png r1 manage 1971.7 K 2010-09-28 - 16:30 BryanCaron  
PNGpng panda-dashboard-errors-sfu-20100928.png r1 manage 636.8 K 2010-09-28 - 16:30 BryanCaron  
PNGpng panda-dashboard-errors-triumf-20100928.png r1 manage 1048.5 K 2010-09-28 - 16:30 BryanCaron  
PNGpng panda-dashboard-summary-20100928.png r1 manage 1595.1 K 2010-09-28 - 15:21 BryanCaron  
PNGpng production-dashboard-ca-20100928.png r1 manage 423.6 K 2010-09-28 - 15:32 BryanCaron  
PNGpng production-dashboard-none-scinet-20100928.png r1 manage 127.8 K 2010-09-28 - 15:57 BryanCaron  
PNGpng production-dashboard-none-vic-20100928.png r1 manage 128.2 K 2010-09-28 - 15:57 BryanCaron  
PNGpng production-dashboard-summary-20100928.png r1 manage 948.6 K 2010-09-28 - 15:32 BryanCaron  
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