Operations Bulletin Latest

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Bulletin archive


Week commencing Monday 13th August 2018
Task Areas
General updates

Tuesday 14th August

  • Draft WLCG T2 availability and reliability reports for July are now available.
    • ALICE
    • ATLAS QMUL 82%, Lanc 88%, Sheff 81%
    • CMS Bristol 84%
    • LHCb Sheffield 82%
  • EGI RP/RC A/R Report for July 2018
  • Notes from Monday's WLCG ops meeting are here.
  • Simon: atlas job filling up /var/cream_sandbox/atlaspil/ with huge log file.
  • Alessandra: files not available under DPM.
  • Dan: latest UMD updates for Cream CE and Worker nodes... the last release of UMD the SL6 version of Cream does not work
  • Steve: Deprecate SL6 ... when? LS2?

Monday 6th August

  • The minutes from Monday's ops meeting are here.

Monday 30th July


WLCG Operations Coordination - AgendasWiki Page

Monday 9th July

  • There was a WLCG ops coordination meeting on 5th July. Minutes.

Monday 25th June

Monday 16th April

  • There was a meeting on 12th. Agenda | Minutes.
    • Balazs Konya is new in the role of WLCG Middleware Officer.
    • Next meeting 7th June.
    • Delay for submission of GGUS tickets for recalculation should be respected. It is 10 days after monthly drafts of the availability reports are sent around by WLCG project office. If the GGUS tickets are not submitted respecting 10 days delay, they are not accepted.
    • A/R recalculations will be accepted if they are relevant to the site MoU commitment or concern time ranges of sufficient length.


Tier-1 - Status Page

Tue 14th August Report for the Experiments Liaison Report (13/08/2018) is here.

  • Tier-1 at RAL have had an unscheduled outage for Echo since Friday evening (10/8/18). The initial cause of this issue is thought to be a combination of client I/O and cluster I/O (moving data onto new hardware), which is causing an excessive amount of memory usage. This in turn is causing machines to start swapping heavily, which is placing even more load on the cluster. This has necessitated pausing all I/O operations on the cluster to try and reduce memory usage while we are restoring the cluster to a healthy state, and putting measures in place to reduce the memory usage on the storage nodes.
  • While this investigation and work is carried out the ongoing downtime has been extended until 12:00 16/08/2018
Storage & Data Management - Agendas/Minutes

Wed 15 August

  • Updates on the forward view for GridPP6
  • Unfortunately Vidyo has been "upgraded" to VidyoConnect which has several work-hindering features.

Wed 08 August

  • Updates on the forward view for GridPP6 - storage technologies, future directions
  • Vidyo annoyances

Wed 01 August

  • IRIS
  • GridPP planning - hack day on DOME?

Wed 18 July

  • CHEP report
  • Updates on the forward view for GridPP6


Tier-2 Evolution - GridPP JIRA

Tuesday 3rd July"

  • "Universal" DIRAC VMs deployed in production for GridPP DIRAC and LHCb

Tuesday 26th Jun

  • LHCb Docker containers in production testing at Manchester
  • "Universal" DIRAC VMs for LHCb and GridPP in production testing at Manchester
  • These VMs include a fix for the LZ GFAL problems


Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06

Tuesday 6th February


Tuesday 30th January

Tuesday 24th Oct


Monday 16th January

  • The discussion topic for next week will be accounting comparisons. Please note Alessandra's comments last week.

Monday 14th November

  • Alessandra has written an FAQ to extract numbers from ATLAS and APEL avoiding the SSB.

Monday 26th September

  • A problem with the APEL Pub and Sync tests developed last Tuesday and was resolved on Wednesday. This had a temporary impact on the accounting portal.
Documentation - KeyDocs

Tuesday 11th June 2018

Steve Jones is updating the User Guide with various mods that have cropped up since Tom Whyntie left (pending permission to edit GridPP website docs...)

Tuesday 11th June 2018

Approved VOs now contains two new SKA VOMS servers (at Oxford and Imperial, as well as Manchester).

https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs


Tuesday 8th May 2018

  • Updating GridPP website certificate to avoid Chrome warnings

General note

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

Interoperation - EGI ops agendas Indico schedule

Tuesday 24 July

  • EGI OPS meeting on 16 July 2018, meeting agenda [1]
  • UMD 4.7.0 release

Recommend not to update CREAM issue with canl-java, in progress https://ggus.eu/index.php?mode=ticket_info&ticket_id=136074

  • Does site requires MPI for Centos7? Is any site willing to support MPI for grid?
  • No meeting in August, next meeting on 10 Sep


Monday 2nd July

Monday 11th June

  • Meeting agenda : [2]
  • Upcoming releases relevant to UK sites
    • gfal2 major release(2.5.4)
    • Arc 5.4.2
  • Yearly review of information in GOCDB. UK ticket status is in progress. Should each site update the ticket?
  • Sites can enable ARGO notification through GOCDB. It can be done at site level or at the service level
  • Final call for WMS decommission. No UK WMS is in the list.
  • WebDav probes will be added to ARGO_MON_CRITICAL profile which means that unavailability of webdav will be added to A/R figures. All UK endpoints are passing the test at the moment
  • Next meeting 9th July

Monday 14th May

  • Next meeting June 11th

Tuesday 24th April

  • The next EGI OMB is on 3rd May

Tuesday 6/3


Monitoring - Links MyWLCG

Tuesday 4th July

  • There were a number of useful links provided in the monitoring talks at the WLCG workshop in Manchester - especially those in the Wednesday sessions.

Monday 13th February

  • This category is pretty much inactive. Are there any topics under "monitoring" that anyone wants reported at this ops meeting? If not we will remove this section from the regular updates area of the bulletin and just leave the main links.

Tuesday 1st December


Tuesday 16th June

  • F Melaccio & D Crooks decided to add a FAQs section devoted to common monitoring issues under the monitoring page.
  • Feedback welcome.


On-duty - Dashboard ROD rota

Tuesday 14th August

  • A couple of new availability tickets (QMUL and Lancaster), both for well-publicised reasons. Otherwise quiet. AM on shift this week.

Tuesday 12th June

  • Four availability tickets still open. One ticket on hold at RAL as they are figuring out that how to deal with castor publishing issue.
  • Dashboard struggled during the week and it was slow but now it seems to be OK.
  • One Bristol ticket got stuck in weird state where it can not be deleted from dashboard although it has been solved.

Monday 21st May


Monday 5th March

  • AM->GS. A quiet week last week.


Rollout Status WLCG Baseline

Monday 20th November



Historical References


Security - Incident Procedure Policies Rota

Monday 16th July

  • Advisory update
  • pre GDB Authz WG on Tuesday
  • Interesting security related talks at CHEP

Tuesday 26th June

  • CSIRT F2F took place last week (18th-20th June) hosted by David Crooks at Glasgow Agenda




Services - PerfSonar production dashboard |PerfSonar development dashboard | OSG Networking and perfSONAR pages | GridPP VOMS

- This includes notifying of (inter)national services that will have an outage in the coming weeks or will be impacted by work elsewhere. (Cross-check the Tier-1 update).

Monday 2nd July

Monday 30th April

Monday 19th February

Please could sites upgrade their perfsonar hosts to CentOS7. Instructions are here. Current OS versions here.

  • Duncan has recreated the UK perfSONAR mesh. Link here!


Tickets

Monday 13th August 2018, 15.00 BST

42 Open UK Tickets this month.

SUSSEX
131617 (3/11/17)
Only this IPv6 ticket at Sussex. End of August was the timescale for the IPv6 rollout given in the network planning document. How's that looking? In progress (4/6)

RALPP
136259 (20/7)
A t2k.org ticket with the user having some trouble with downloading files using the gfal tools. Chris gave some tips but no news from the user side. Any luck finding out what was up with the bdii info? If that seems sorted I reckon this ticket can be closed. In progress (20/7)

131616 (3/11)
RALPP's IPv6 ticket. This poor chap seems neglected and really could do with an update, or putting out of its misery. In progress (16/1)

OXFORD
131615 (3/11)
Again only the v6 ticket for Oxford. Kashif provided a recent (although sadly not very positive) update. On hold (13/7)

CAMBRIDGE
131614 (3/11/17)
Another v6 ticket, at last update (in June) John was waiting on the University to migrate to a new v6 block. Any news on this? No worries if there's not. On hold (5/6)

BRISTOL
131613 (3/11/17)
Yet another v6 ticket, in an update that was only last month Winnie restated the Bristol position, which is the unique state of having dual-stacked all the "hard stuff" and are just waiting to be able to v6-ify the perfsonar. On hold (16/7)

BIRMINGHAM
129930 (4/8/17)
The atlas ticket that heralded the "Dawn of EOS" at Birmingham. I believe that there is work going on towards getting EOS working for atlas at the site, but I see no updates in the ticket.... Just hinting. On hold (23/4)

131612 [(3/11/17)
And Birmingham's v6 ticket. Some postive(ish) news, with Mark waiting on the v6 DNS entries for the perfsonar. Any joy getting that done? On hold (28/5)

GLASGOW
134689 (23/4)
A request from Duncan to upgrade the site's perfsonar to CentOS7. Gareth was waiting on 4.1 to be released first - which at last check (29th June) was only in beta. On hold (24/4)

131611 (3/11/17)
v6 ticket. I don't really want to ask how it's all going... On hold (26/2)

EDINGBURGH
136391 (26/7)
Atlas jobs failing at ECDF-RDF with lcg-cp not found. It appears that there's some confusion in the site's AGIS configs, Teng has asked last week for some changes which he thinks need to be made. In progress (6/8)

131610 (3/11/17)
The ECDF IPv6 ticket. After a promising start the ticket is on hold waiting on updates from the networking team. On hold (21/5)

DURHAM
134687 (23/4)
Durham's request to update their perfsonar, they've adopted the Glasgow position on this matter, but might end up updated "by accident". In progress (3/7)

131609 (3/11/17)
And Durham's v6 ticket. In a recent update there was sadly no positive progress. In progress (10/7)

SHEFFIELD
136014 (10/7)
Atlas transfer errors at Sheffield. Elena cleaned the database, but although things looked better her end atlas still report troubles. I'm reminded of this setup hint that might help (setting control_idle_timeout to 7200). In progress (6/8)

136043 (11/7)
ROD low availability ticket. On hold (11/7)

131608 (3/11/17)
As you may have guessed, the Sheffield v6 ticket. Elena gave an update last month, although sadly the news wasn't very positive. On hold (10/7)

MANCHESTER
136631 (9/8)
Atlas seeing deletion errors. Alessandra has had to kick things a few times but things were looking good this morning. In progress (13/8)

131607 (7/11/17)
Manchester's v6 ticket. Perfsonar is v6'd, but IIRC it might be a while until the SE is dual-stacked due to v6 DNS issues. Any progress with this from your Central IT people? On hold (14/5)

LIVERPOOL
136667 (12/8)
Atlas deletion error ticket. John is away, but my recommendation is just check you have httpd running on all your pool nodes. In progress (13/8)

131606 (3/11/17)
The Liverpool v6 ticket. At last check not a sausage was to be heard about the new routers that will sort out the v6 performance issues seen by the site. In progress (4/6)

LANCASTER
136648 (10/8)
Atlas transfer ticket for Lancaster as the site recovers from a DPM headnode migration that was a little rough (to say the least). We might have fixed things (or at least made things less bad). In progress (13/8)

136635 (9/8)
ROD Availability ticket, another side effect of the DPM migration. On hold (9/8)

UCL
134686 (23/4)
Request to upgrade the site perfsonar hosts to C7. No news on this at all. On hold (23/4)

131604 (3/11/17)
UCL's v6 ticket. In a May update Ben noted he had re-poked UCL Networks. No news since - has anyone heard from Ben about anything? Just checking he's okay down there. On hold (4/5)

RHUL
131603 (3/11/17)
The only ticket for RHUL is their v6 ticket. Now that you are Post-Govind how are the site's v6 plans looking? In progress (6/2)

QMUL
136550 (4/8)
A ticket from t2k that I only just noticed didn't have the "notify site" field filled in. The user was having SE connection problems, but I think this coincided with other problems at the site, so maybe the issue is fixed now? Again the same user is seeing bdii problems in his gfal commands. Assigned (13/8)

136178 (17/7)
A kind of parent ticket to the above one, here the same t2k user was seeing timeout issues. The situation seems a little confusing. In progress (7/8)

136576 (13/8/0647)
Availability ticket after the aircon failures. On hold (6/8)

136641 (9/8)
Atlas transfer failures after some load problems. Following the link it looks like the issues are cleared up for the last 48 hours. Dan notes in the ticket that QM might need to buy a new Storm headnode next time out. In progress (11/8)

134573 (17/4)
Request from CMS to install singularity. Planned for the end of Summer move to C7. Any news on that? On hold (17/4)

132929 (18/1)
Problems with APEL at QM. No news in the ticket since May. In progress (10/5)

BRUNEL
133956 (9/3)
Changing the CMS xroot config ticket. Raul is postponing the work until the move to C7/dome. In progress (3/7)

136649 (10/8)
CMS notes some possible missing files at Brunel, which Raul cannot find a record for in the last 4 weeks. Raul has asked for some extra details, as they've had phantom files at the site before. In progress (13/8)

TIER 1
136199 (18/7)
LHCB are seeing a lot of stuck transfers on the RAL FTS. In progress (7/8)

136655 (10/8)
LHCB spotted a missing file (with no replicas) at RAL. Sadly the file was dead, so I think this ticket can be closed. In progress (13/8)

136028 (10/7)
A CMS ticket with troubles reading files off of RAL disk - which I think are due to xroot problems (it's a very long ticket and I only had tiem to skim it). Chris has asked if there's a CMSSW expert that they can get involved. In progress (13/8)

136358 (25/7)
CMS xroot access problems from the RAL WN. On hold whilst other issues are cleared up. On hold (13/8)

136563 (6/8)
CMS spotted possibly corrupt files at RAL, the ticket has been referred to the ECHO team, but that was a week ago now. Of course there have been problems... In progress (6/8)

136665 (11/8)
CMS ticket for the site being down, the ticket is referred to the unscheduled downtime and other issues. In progress (12/8)

136366 (25/7)
A ticket from MICE asking for them to be removed from the batch system at RAL as the experiment winds down. Catalin asks if the removal can be tested to see if it fails as it should. Waiting for reply (8/8)

124876 (7/11/16)
The old Ops gridftp test ticket for ECHO. Waiting on a change to be rolled out to the RAL WNs to get the new tests working. In progress (28/6)

Tools - MyEGI Nagios

Monday 20th November

Tuesday 18th July

  • Following our ops discussion last week, Steve will focus his tests on supporting the GridPP DIRAC area and decommission the other tests.


VOs - GridPP VOMS VO IDs Approved VO table

Monday 20th November

  • Tom Whyntie has requested (and been granted) access to the GridPP VO to get some pipelines working for large-scale processing and analysis of MRI scans associated with the UK Biobank project.
  • All VOs in the incubation page being prompted for updates by the end of November (required input for OC documents).
  • QMUL (Steve L) is following up on the biomed MoU. GridPP want to be cited in research papers for the support our resources/sites provide.


Site Updates

Date



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 Meeting takes place on Vidyo.

Highlights from this meeting are now included in the Tier1 report farther up this page.

WLCG Grid Deployment Board - Agendas MB agendas

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NGI UK - Homepage CA

Empty

Events
UK ATLAS - Shifter view News & Links

Atlas S&C week 2-6 Feb 2015

Production

• Prodsys-2 in production since Dec 1st

• Deployment has not been transparent , many issued has been solved, the grid is filled again

• MC15 is expected to start soon, waiting for physics validations, evgen testing is underway and close to finalised.. Simulation expected to be broadly similar to MC14, no blockers expected.

Rucio

• Rucio in production since Dec 1st and is ready for LHC RUN-2. Some fields need improvements, including transfer and deletion agents, documentation and monitoring.

Rucio dumps available.

Dark data cleaning

files declaration . Only Only DDM ops can issue lost files declaration for now, cloud support needs to fill a ticket.

• Webdav panda functional tests with Hammercloud are ongoing

Monitoring

Main page

DDM Accounting

space

Deletion

ASAP

• ASAP (ATLAS Site Availability Performance) in place. Every 3 months the T2s sites performing BELOW 80% are reported to the International Computing Board.


UK CMS

Empty

UK LHCb

Empty

UK OTHER
  • N/A
To note

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