Operations Bulletin 281013

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Bulletin archive


Week commencing 21st October 2013
Task Areas
General updates

Tuesday 22nd October

  • The move to VO based availability calculations - see files in this parallel reports directory.
  • For those attending the WLCG workshop in November - please register as soon as possible.
  • Renewing host certificates with 'odd' DNs (see TB-S thread)
  • Sites are still being asked to support the backup GridPP VOMS servers and update their status here.
  • There have been a series of NGI talks in preparation for H2020 that may be of interest.
  • There was an ATLAS request to sites still using the old version of DQ2 clients. Could these sites please upgrade their local installation of DQ2 clients to version 2.4.1? (Email on 17/10/13).
  • There has been an EGI ops portal change for VO cernatschool.org with status moving from: New to Production.
  • The minos VO has been decommissioned.

Monday 14th October

  • CHEP takes place this week in Amsterdam - agenda.
  • HEPiX starts on 29th October - agenda - and Chris B is looking for Tier-2 input for a talk.
  • Germany has withdrawn from EGI.eu. It remains in EGI-Inspire and GGUS will continue as a service.
  • Removing people from GOCDB requires a GGUS ticket to GOCDB admins. Roles can be changed - see this documentation.
  • There 4 tarball tickets needing attention - do we need more effort in this area?
  • The UK CA will start issuing SHA-2 certificates by default in January 2014, not on 1st December 2013 as is possible under the revised IGTF timeline.
  • SNO+ has written several (approximately) 1TB files at Sheffield filling their disk pool and causing Nagios tests to fail.
  • GridPP welcome Tom Whyntie as its new dissemination officer. Tom will be working 50% on CERN@School.
  • There was a GridPP Technical Meeting last Friday. It will cover storage, IPv6 etc. Next meeting on 25th October.
WLCG Operations Coordination - Agendas

Tuesday 22nd October

Tuesday 17th September

  • The agenda of the next WLCG operations meeting is available here. The details of the agenda are not yet final. The participation of the Tier-1 contacts is being strongly encouraged, but also Tier-2 sites are welcome to listen in and contribute (via Vidyo).

Tuesday 2nd September

  • Middleware
    • New BDII release in the latest EMI-2/3 update, including better GLUE-2 support and security fixes. Sites should update all their BDII instances
    • New CVMFS version released for a security fix. Sites should upgrade or at least apply the hot fix in the above twiki
    • perfSONAR: sites should upgrade to the latest version, fixing many deployment problems
    • The end of support for dCache 1.9.12 has been postponed to September 30 due to a delay in releasing the SHA-2 compliant version in the dCache 2.2 series.
    • Consult https://twiki.cern.ch/twiki/bin/view/LCG/WLCGBaselineVersions
  • SHA-2
    • Discussion mostly dedicated to the experiments testing status. Atlas and LHCb have tested the services but not job submission yet. All experiments have been encouraged to test this.
  • SL6
    • T2 Done: 49/129 (Alice 11/39, Atlas 28/89, CMS 22/65, LHCb 13/45) -> 80/129 still to be done.
    • HS06: Reminder that sites are requested to run HS06 benchmark and update the value in the BDII. Increased values might be discussed at the WLCG MB.
    • EMI-3: voms-clients have been fixed and the latest version is in the PT repository but not in EMI-3 yet. Both CMS and Atlas work on DPM/dcache sites with this patch. (QMUL might want to give an update on Storm when they upgrade)
    • UK status: Liverpool to be finished soon, Bham in downtime to upgrade this week, Bristol and Sussex should be done by the 15/9/2013, RALPP 20/09/2013 and QMUL, Lancaster, UCL 30/09/2013
  • glexec
    • 55 sites still to respond they have attached the installation to SL6 upgrade.

Monday 12th August

  • There have been no recent meetings. The next is on 29th August.
      • Sites monitoring requirements: SUM tests not representing the real experiment status for example.
Tier-1 - Status Page

Tuesday 22nd October

  • We currently have two farms running - all worker nodes being at SL6 and having around 50% of the capacity. Our plan is still to run with the two farms until early November when the Torque/Maui farm will be decommissioned and its WNs moved to the Condor farm.
  • We have an intervention tomorrow (Wednesday 23rd Oct) to (re)double the data uplink from 10 to 20 Gbit. We are doing a Castor/LFC/FTS stop and a pause of the batch work. This is in the GOC DB.
  • We are working on plans for managing services during a planned intervention on the UPS on 5/6 November.
Storage & Data Management - Agendas/Minutes

Tuesday 8th October

  • The DPM workshop agenda and registration page will appear here.

Monday 30th September

  • A DPM workshop is being organised in Edinburgh for 13th December. GridPP PMB anticipated covering travel for of order 10 UK sysadmins for this event. Interest should be indicated during the storage group meeting.

Tuesday 17th September

  • Perhaps someone could summarise the "Dark Data identification tools" thread on TB-Support?



Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06

Tuesday 13th August

Tuesday 23rd July

  • Sites moving to SL6 are reminded of the need to re-benchmark their WNs. Some sites have updated the wiki already and provide an idea of the performance change.
  • There is an ongoing PMB discussion about the timeline for the next Tier-2 hardware tranche. Please let Pete or Jeremy know if your site will benefit from a spend this financial year.

Tuesday 30th April

  • A discussion is starting about how to account/reward disk that is reallocated to LHCb. By way of background, LHCb is changing its computing model to use more of Tier-2 sites. They plan to start with a small number of big/good T2 sites in the first instance, and commission them as T2-Ds with disk. Ideally such sites will provide >300TB but for now may allocate 100TB and build it up over time. Andrew McNab is coordinating the activity for LHCb. (Note the PMB is already aware that funding was not previously allocated for LHCb disk at T2s).

Tuesday 12th March

  • APEL publishing stopped for Lancaster, QMUL and ECDF

Tuesday 12th February

  • SL HS06 page shows some odd ratios. Steve says he now takes "HS06 cpu numbers direct from ATLAS" and his page does get stuck every now and then.
  • An update of the metrics page has been requested.
Documentation - KeyDocs

See the worst KeyDocs list for documents needing review now and the names of the responsible people.

Tuesday 1st October

  • The approved VOs page has been updated with the newest data from the operations portal. Note that the VOMS records for LondonGrid now contain some alternative voms servers. The migration plan for use of these backup servers is now document here.

Tuesday 17th September

  • Little obvious change in the status table since last week.

Tuesday 3 September 2013

  • Proposal for "Instant UI", with the aim to produce a suite of documentation and software that will enable a new user to set up a UI and join the grid with the minimum of hassle. Doc will show for to admin a UI that can be used to submit jobs and retrieve output for a given set of users belonging to a given set of VOs. "Instant UI" is currently in consulation phase with GridPP admin community.
Interoperation - EGI ops agendas

Tuesday 15th October

  • Topics are being gathered for the next EGI ops meeting on Thursday October 24th at 10:00 Amsterdam time.
  • David/Raul are representing the UK

Monday 7th October

  • The ops meeting today covered: news from URT; staged rollout updates; UMD updates; DMSU updates (WMS problems at CNAF); ARGUS connection problems and SHA-2 update.

Monday 30th September

  • There was an EGI ops meeting on 23rd September. See the agenda for more details.

Monday 16th September

  • The next meeting takes place on 23rd September at 13:00 (UK time).
  • UMD 3.2.0 was released last week. See the release page for more information.

Monday 2nd September

  • Yesterday's agenda. Attended by David and Raul.
gLite support calendar.


Monitoring - Links MyWLCG

Monday 30th September

  • David summarised the UK site's position on Nagios in an email last week as:
  • There is a desire for a monitoring solution that gave automatic notifications and links to further information, and didn't require additional webpages (which describes Nagios). We noted that Nagios could be used to import central nagios tests and repurposing them for local testing.
  • In addition, it would be useful if the further details could include details of the testing execution commands (even including the test itself) for local diagnosis.
  • We wondered whether (and where) there might be common ground with the WLCG Nagios project - while this may have been discussed, it would be useful to clarify this.
  • It's important to have a clear and documented messaging/transport layer for any solution that's decided on, for integration with future monitoring solutions.

Tuesday 23rd July

Tuesday 18th June

  • David C is taking feedback on the Graphite implementation presented at the HEPSYSMAN meeting. Also considering integrating Site Nagios.
  • Glasgow dashboard now packaged and can be downloaded here.
On-duty - Dashboard ROD rota

Tuesday 22nd October

  • There seem to be a number of sites struggling to publish, but there already seem to be quite a number of GGUS tickets out there.

Tuesday 15th October

  • Just two sites (RAL Tier1 and ECDF) not in downtime and with SHA-2 alarms.
  • RALPP has a ticket for the dCache version which they plan
  • Some alarms earlier in the week due to BDII problems
  • A ticket against Sussex has hit the one month resolution deadline and been escalated. This has also resulted in a "ROD not performing properly" ticket to the UK NGI.
  • The rota for coming months needs to be agreed.
Rollout Status WLCG Baseline

Tuesday 8th Oct There have been updates to EMI2 and 3 yesterday, but no new request for Staged Rollout. There is a problem with dcap-libs: [GGUS 97805]

Tuesday 17th September

  • Chris sent in a report for Storm.

Tuesday 9th July

  • New EMI2 and EMI3 release yesterday. No staged rollout requests yet. Imperial upgraded their WMS and they have been somewhat shaky ever since.

Tuesday 18th June

  • New EMI3 CE coming into SR. Liverpool will test.
  • A lot of EMI3 testing done at Brunel.
  • EMI-3 testing page contains all issues I am aware off. It's a Wiki though, so if you find an issue, please put it in the appropriate category.

Tuesday 14th May

  • A reminder. Please could sites fill out the EMI-3 testing contributions page. This is for all testing not just SR sites as we want to know which sites have experience with each component.

References


Security - Incident Procedure Policies Rota

Tuesday 8th October

  • ARGUS setup for UK
  • ARGUS configuration (see Chris's email)

Tuesday 17th September

  • More information on the EGI/PRACE/EUDAT Joint Security Training event mentioned last week is now available.

Tuesday 3rd September

  • Security contacts and system staff of the partners of EGI, EUDAT and PRACE are invited for a joint security event from Monday, October 7 - Wednesday, October 9 in Linköping, Sweden. Monday and Tuesday will be a training event which should be of interest for all staff managing the systems which are part of our infrastructures. The second part of the meeting will consist of a discussion of security policies and the collaboration among the different infrastructures.
  • Rob H has moved to the Tier-1. Looking at options for security team.
  • At the next team meeting we should review our approach to 100percentit (just moved to uncertified).

Tuesday 20th August

  • Several sites showing up in pakiti this week.
  • Update on workaround discussed last week.


Services - PerfSonar dashboard | GridPP VOMS

Tuesday 1st October

  • PerfSONAR latency hosts configured to use the WLCG meshes should now have a traceroute measurement achive (MA) accessible from the GUI under 'Service Graphs' --> 'Traceroute'. Here is an example.

Tuesday 17th September

  • Upgrading/re-installing hosts to v3.3.1/mesh is only making slow progress.
  • There is a new view of the status between sites.
  • An outage at Manchester due to central switch maintenance means that VOMS is not going to be contactable for a period this morning. It is clear that we need the backup VOMS instances fully available to VOs - please can someone take a lead?
Tickets

Monday 21st October 17.00 BST</br>

In the ticket limelight this week:

NGI/SUSSEX</br> https://ggus.eu/ws/ticket_info.php?ticket=97941 (10/10)</br> The NGI got ticketed over the slow progress on the SUSSEX APEL ticket 97139. Although the powers that be are satisfied they're keeping this ticket open until the underlying issue is solved. In progress (21/10)

TIER 1</br> https://ggus.eu/ws/ticket_info.php?ticket=98122 (17/10)</br> This request for cernatschool to have access to the RAL cvmfs stratum zero has been around the houses a few times, so the RAL team might not have noticed it yet. Assigned (18/10)

https://ggus.eu/ws/ticket_info.php?ticket=97908 (9/10)</br> Chris ticketed the Tier 1, but it's a useful reminder to everybody - please have the GridPP "backup" voms servers added to your configs. The deadline for this is the end of this month. In progress (22/10)

SHEFFIELD</br> https://ggus.eu/ws/ticket_info.php?ticket=97039 (4/9)</br> This biomed ticket needs some love, or to be put On Hold again. But some attention to it would be nice. In progress (11/9)

That's about it really, I haven't had time to go through them all like I usually do. My apologies again.

Obligatory link to the tickets when I have haven't done a thorough job: </br> http://tinyurl.com/cblj3ab


Tools - MyEGI Nagios

Monday 30th September

  • Ewan has put together a slightly modified WLCG VO box, but the effect is of a UI that takes gsi ssh logins from people in one particular VO, but then can be used as a UI for other VOs once you're logged in. The idea is that anyone who would need access to a central UI machine (so, mostly not people in PP depts.) would join a special-purpose VO. See Ewan's TB-SUPPORT email on 23rd September for more details.

Monday 2nd September

  • Intermittent Nagios errors -> Imperial WMS and all the jobs going through it were failing with ‘no compatible error’. Some reports of ongoing issues. What is the direct impact?
  • MyEGI and gstat were also down last week.
  • Jens is testing SHA-2 compliance of components. The version of gridsite on the GridPP website is not compliant but SHA-2 will be supported with a move to a new server (when?).
VOs - GridPP VOMS VO IDs Approved VO table

Monday 21st October 2013


Monday 7th October 2013

  • CVMFS server for hyperk.org still outstanding
  • LFC Webdav still awaiting port opening
  • HyperK - progress - expect to run significant number of jobs soon.

Monday 2nd September

  • The next quarterly Tier 1 allocation/resourcing meeting is scheduled for Wednesday 18th September (after the weekly T1 meeting) the hardware requirements and fair-shares for the period October-December 2013 will be reviewed. It looks ahead over the next 12 month timeframe. Can all experiments/projects please let Pete G have any updates or requests to these numbers by Friday 13th September please?

Monday 19 August

  • EPIC
    • Support requested at Tier-1
    • Any other sites prepared to support them?
  • Catalogue synchronisation - Biomed working on it.


Monday 12 August

  • HyperK.org
    • VOMS servers set up (Manchester, Oxford, Imperial)
    • VOID card - stalled on a homepage.
    • WMS set up (Imperial) - awaiting Glasgow, Ral
    • Site set up (QMUL)
    • LFC - in progress
    • CVMFS - considering
  • SNO+
    • Dirac set up for some CEs
  • Epic
    • Doing stuff
  • ngs.ac.uk VO - any reason to keep it?
  • Software areas for SL6
    • Are we keeping the same areas as sl5?
    • What about the software tags?
    • Push CVMFS?
Site Updates

Actions


Meeting Summaries
Project Management Board - MembersMinutes Quarterly Reports

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GridPP ops meeting - Agendas Actions Core Tasks

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RAL Tier-1 Experiment Liaison Meeting (Wednesday 13:30) Agenda EVO meeting

Wednesday 23rd October

  • Operations report
  • This morning the data uplink from the Tier1 was doubled. There is now has a 20Gbit link to the next router, from where there is the existing 10Gbit link to Janet and the separate 10Gbit OPN link to CERN. The performance of the paired 10Gbit links will be carefully monitored over the coming days.
  • Two batches of worker nodes in the Condor farm have been upgraded to CVMFS v2.1.15-1
  • Initial plans for service interruptions during work on the UPS on 5/6 November were discussed.
WLCG Grid Deployment Board - Agendas MB agendas

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NGI UK - Homepage CA

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Events

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UK ATLAS - Shifter view News & Links

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UK CMS

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UK LHCb

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UK OTHER
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To note

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