Operations Bulletin Latest

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Bulletin archive


Week commencing Monday 6th March 2017
Task Areas
General updates

Monday 6th March

  • We have received the WLCG T2 R/A figures for February.
    • ALICE
      • All okay
    • ATLAS
      • Oxford 84%:84%
    • CMS
      • All okay
    • LHCb
      • QMUL 84%:84%
      • Durham 88%:88%
    • Site responses:
      • QMUL: No known issues - possibly network related. Following up with LHCb.
      • Durham: Batch system upgrade led to one outage and a University wide internet connection loss led to another.

Monday 27th February


Monday 20th February


WLCG Operations Coordination - AgendasWiki Page

Monday 6th March

  • There was an ops coordination meeting on Thursday 2nd March - agenda | Minutes.
  • The overview talks were: Mid-SLAs | Machine Job Features.
    • Lessons learned from ATLAS tape usage tests. Follow up via FTS steering group. Will share experience with other experiments.
    • "Mid SLA" resources. During the next months accumulate experience at CERN (providing such resources) and in experiments (using such resources). Review accumulated experience after a couple of months and decide what we need to do in terms of tagging, accounting, etc...
    • MJF deployment is not as successful as desired. Find help (at least temporary) for deployment campaign concentrating on the LHCb sites. See whether this task would become more important considering outcome of the benchmarking discussion.
    • In order to avoid inconsistencies in the naming of the service types along the WLCG IS chain (GocDB, OIM, SAM, experiment-specific systems like Dirac), there will be agreement between representatives from OSG, EGI and GocDB team and IS evolution task force on the policy for introducing of the new service types.
    • The next WLCG ops coordination meeting will be on 6th April.


Monday 27th February

  • The next WLCG Operations Coordination meeting will be Thursday this week starting at 15:30 CET.
  • Themes:
    • SLAs and usage of different kinds of computing resources
    • Machine/Job Features update
  • Experiments, T0, WGs & TFs are requested to add reports to the minutes page at least 1 HOUR before the meeting.
  • Tier-1 and Tier-2 sites are asked to please contact wlcg-ops-coord-chairpeople@cern.ch to have a specific slot added in the agenda if you have non-trivial feedback or announcements to be made.


Tuesday 21st February

  • Next meeting is on 2nd March.

Monday 6th February

  • Minutes from the WLCG Data Steering Group meeting of 2nd February are available on the meeting agenda page.


Tier-1 - Status Page

Tuesday 7th March A reminder that there is a weekly Tier-1 experiment liaison meeting. Notes from the last meeting here

  • Following completion of the Castor 2.1.15 update: The next change for Castor is to to update the SRMs. We expect to be able to do this in late March.
  • The next step in enabling IPv6 on the Tier1 network was scheduled to take place on the 1st March but has been delayed one week.
  • Ongoing tests ongoing with some batch jobs for the LHC VOs running in SL6 containers on worker nodes running SL7.
  • New capacity hardware has been delivered. (Storage delivered, CPU in process of being delivered).
Storage & Data Management - Agendas/Minutes

Wednesday 15 Feb

  • Space tokens! Use them!
  • Leafed through interesting topics (technology permitting) from the CS3 workshop

Wednesday 08 Feb

  • More on accounting (again)

Wednesday 01 Feb

  • Accounting - need to revisit (again); KeyDocs need updating
  • Hardware - Simon's got a disk array to test drive

Wednesday 18 Jan

  • Continued ZFS discussion
  • Updates from the non-LHC VOs, data-wise. Mostly no news, except for DiRAC, Cambridge HPC and Edingburgh EPCC are debugging and testing; LSST expecting to do MC workflows end of Jan.


Tier-2 Evolution - GridPP JIRA

Tuesday 28 February 2017

  • ATLAS jobs now running on Birmingham Vac VMs.
  • LHCb is now running its standard DIRAC VMs on Google Compute Engine using GridPP's Vcycle.

Tuesday 21 February 2017

  • Some ALICE production jobs running at Birmingham and Oxford in Vac VMs.

Tuesday 14 February 2017

  • Vac installed at Birmingham. Running LHCb production jobs. Preparing to run ALICE VMs.
  • ALICE VMs switched to using GSI proxies internally rather than host cert/keys.

Friday 3 February 2017

  • ATLAS MCORE VMs now successfully running PanDA production jobs.


Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06

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

Monday 13th Febraury

  • Please check the keydocs page. Would all owners please review their pages and prepare a short note on how they will bring things up-to-date in the coming months. This will be discussed at a core ops meeting (poll to be circulated shortly).
  • There are several EGI operations document updates out for review. Please make comments to Jeremy by 20th Febraury for inclusion in the UK feedback:


Monday 30th January

The fusion VO has been removed from GridPP Approved VOs.

Monday 9th January

  • Tom put these together:
    • A snapshot of the GridPP UserGuide is now available as an offline document in the Zenodo repository:
    • ...and the v1.0 release of the LaTeX code used to compile it is here.
    • There are some minor differences (mainly hyperlink-related) to the online version [1], which has also had a v1.0 release here.


Tue 22nd Nov

  • More on Accounting audit tools

The process for ARC, Toque and VAC is now documented here.

https://github.com/gridpp/audit/wiki



General note

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

Interoperation - EGI ops agendas

Monday 13th February

  • There was an ops meeting on 13th February. Agenda
    • frontier-squid-3 in UMD 4.4.0 - changes to config
    • Assess IPv6 readiness:
      • Resource Centres: assess the IPv6 readiness of the site infrastructure (real machines, cloud managers)
      • NGIs/ROCs please start discussing with sites and provide suggestions for the overall plan
    • Decommissioning of dCache 2.10
    • Discussed stale ARGO results; being discussed with Product Teams.

Monday 16th January

  • There was an ops meeting on 9th January. Agenda.


Monday 7th November

  • There was an EGI Ops meeting today: agenda
  • UMD 3.14.5 released today
    • VOMS 3.5.0, which makes RFC proxies the default for voms-proxy-init
  • UMD 4.3.0 'October' release, release candidate ready, to be released by end of this week, including:
    • ARC, GFAL2, XROOT, Davix, dCache, ARGUS, Gridsite, edg-mkgrid, umd-release for CentOS7
  • please start using UMD4/SL6 or UMD4/CentOS7 instead of UMD3/SL6 & please don't use anymore EMI3
    • (think there may be a campaign around this soon)
  • Downtimes due to the vulnerability CVE-2016-5195: request an A/R recomputation
    • All the resource centres that were affected by the vulnerability CVE-2016-5195 and that declared a downtime between 2016-10-20 16:00 UTC and 2016-10-31 18:00 UTC are invited to request a recomputation of A/R figures for the days in which the downtime was ongoing.
Monitoring - Links MyWLCG

Monday 13th Febraury

  • 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

27th February

  • Forwarded two tickets (RALPP and ECDF) to the monitoring team, as this looks like more ARC shenanigans.
  • There's also a bunch of low availability tickets which clog up the system.


Tuesday 21st February

  • Very quiet!
  • Rota responses enable planning through to May.

Monday 16th January

  • Rota to be updated this week. Gordon is on shift this week.
Rollout Status WLCG Baseline

Monday 13th February

  • Please can we hear something from Raul and Sam (or others contributing to the middleware readiness work) about news in this area at the ops meeting next week? Thank you.
  • Does anyone want specific questions in this area tackled in a roundtable discussion?

Tuesday 7th December

  • Raul reports: validation of site BDII on Centos 7 done.

Tuesday 15th September

Tuesday 12th May

  • MW Readiness WG meeting Wed May 6th at 4pm. Attended by Raul, Matt, Sam and Jeremy.


References


Security - Incident Procedure Policies Rota

Monday 27th February

  • EGI-SVG-2017-6074 - 23rd-Feb [HEADS-UP] Linux kernel root escalation vulnerability [1]
    • The publishing of an exploit is expected to make this a CRITICAL vulnerability. Sites are therefore advised to deploy the proposed mitigation now and to plan for a kernel update campaign (including reboot) within the time lines stated in: https://wiki.egi.eu/wiki/SEC03_EGI-CSIRT_Critical_Vulnerability_Handling
    • Updates are available for all major distributions.
  • Updated IGTF distribution 1.81 - updated trust anchors [2]

Monday 20th February

  • EGI-SVG-2017-12381 - Singularity container escape vulnerability [3] - The configurations that allow individual users to upload and execute singularity containers are vulnerable and must be updated urgently.

Monday 13th February

  • EGI-SVG-2017-12391 - Just a check (JC). Attacks on Hadoop installations - sites should check they are securely configured. [4]
  • Security team meeting this afternoon.


The EGI security dashboard.


Services - PerfSonar production dashboard |PerfSonar development dashboard | 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 6th March

  • Last week it was noted that some ATLAS RIPE probes (the USB ones) have had hardware errors. If you need a replacement and RIPE are slow to respond then contact Jeremy.
  • Is anyone running any tests with their RIPE probe?

Tuesday 14th February

  • The development dashboard is now operational again. However the production dashboard is not currently displaying latency results (OSG ticket submitted).
  • Birmingham pS host had lost its entire network connection and both Lancaster's hosts their IPv6 connection. Durham results are incomplete, GGUS ticket submitted (#126587).

Tuesday 25th October

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


Tickets

Monday 6th March 2017, 15.00 GMT
21 Open UK Tickets this month

TIER 1 and IMPERIAL
126808 (24/2)
WMS "Usage Survey" ticket. Both WMS sites have replied and it has been noted that the two big WMS users in the UK (mice and t2k.org) can be encouraged to use dirac. In progress (28/1)

SUSSEX
122772 (11/7/16)
Atlas webdav/xroot ticket. It's a bit of a baptism of fire for the new admin, and any luck with this? The storage group are always happy to help. On Hold (26/1)

125503 (9/12)
Sno+ file access problems due to what appears to the SE headnode moving. Any movement here? I think a plan was made at least. In progress (30/1)

RALPP
126902 (2/3)
CMS ticketing RALPP essentially because their multicore jobs aren't getting slots. Chris notes this problem may be compounded by these CMS jobs being particularly RAM-hungry in their resource requirements. It doesn't look like this is a site problem really (as is noted in the ticket). In progress (2/3)

OXFORD
126928 (3/3)
Atlas transfer failures ticket - Kashif spotted that the gridftp service wasn't listening and restarted it - I suspect this ticket can be closed but is it me or has the gridftp service been a bit flakey recently (particularly for Oxford?). In progress (3/3)

BRISTOL
126864 (28/2)
A ticket to track LZ deployment at Bristol. Ticking along. In progress (1/2)

126865 (28/2)
Investigating the cause of Ipv6 CMS Phedex transfer failures at Bristol. I think things are looking good after IPv6-ing the GridFTP server, the ticket was discussing how best to debug transfers. In progress (2/3)

GLASGOW
124052 (25/9/16)
LHCB ticket concerning incorrect CPU publishing from the Glasgow ARCs - Gareth was hoping to have things sorted when they rolled out the next generation of Centos7 ARC CEs. Any joy? On hold (31/1)

ECDF
126349 (3/2)
Availability ticket with some very odd figures - luckily the argo team are looking into what's going on. Waiting for reply (1/3)

126957 (6/3)
Nagios SRM-put test failure ticket - but checking the link all seems okay. Waiting for reply (6/3)

LIVERPOOL
126956 (6/3)
A fresh availability ticket, ripe for On Holding for 30 days. Assigned (6/3)

126936 (3/3)
A confused atlas deletion ticket, as they seem to have Liverpool and Lancaster confused. I suspect that the ticket can be closed as things seem okay at Liverpool. I took some steps to sooth Lancaster in case deletion errors persist and the DDM plots looked okay. In progress (6/3)

124819 (3/11/16)
AFS ticket - in reply to the University opening the requested port it's noted that some hosts are still having problems (firewall on the machines themselves?) and others look to be behind a NAT. Waiting for reply (should be In Progress) (13/2)

QMUL
126650 (15/2)
cern@school pilots failing at QM (submission command failed type errors). The ticket could do with an update (even a null one). In progress (15/2)

126261 (30/1)
QM CEs not working for biomed. Duncan spots that ce04 and 05 might not be working for CMS either. In progress (3/3)

126838 (27/2)
Atlas "space reporting issue" ticket. Brian is aiding the investigation, spotting a large amount of possible dark data creation via botched deletions during the switch to webdav. The discussion moves onto problems inherent using webdav for deletions on storm. This has been talked about in the atlas uk meeting (although I'm afraid I phased out during the conversation). In progress (6/3)

TIER 1
126184 (26/1)
Atlas site monitoring survey ticket. Possibly closing soon? Has feedback been provided? In progress (7/2)

126889 (1/3)
Atlas deletion error ticket for the Tier 1. Again it looks like the problem has gone away, although Tomas kindly provided the error message that was being seen for investigation. In Progress (6/3)

126905 (2/3)
Finishing up with deployment of the cvmfs support for solidexperiment.org - focusing in part on accepted upload proxies. This looks to have been done, and Dan the new solidexperiment chap has success in uploading software. Daniela has updated the ticket with a few new questions. In progress (6/3)

117683 (18/11/15)
Castor Glue2 publishing ticket. Rob reports that much of the code has been written. On hold (2/3)

124876 (7/11/16)
The echo instance not working for nagios tests due to the wrong path being used. No movement on the child ticket 125026 - it looks like some chasing is needed to be done by someone. On hold (1/1)

Tools - MyEGI Nagios

29th November 2016

LSST monitoring is available through vo-nagios

https://vo-nagios.physics.ox.ac.uk/nagios/cgi-bin/status.cgi?servicegroup=lsst&style=detail

13th September 2016


VOs - GridPP VOMS VO IDs Approved VO table
Site Updates

Tuesday 23rd February

  • For January:

ALICE: All okay.

RHUL 89%:89% Lancaster 0%:0%

RALPP: 80%::80%

RALPP: 77%:77%

  • Site responses:
    • RHUL: The largest problem was related to the SRM. The DPM version was upgraded and it took several weeks to get it working again (13 Jan onwards). Several short-lived occurrences of running out of space on the SRM for non-ATLAS VOs. For around 3 days (15-17 Jan) the site suffered from a DNS configuration error by their site network manager which removed their SRM from the DNS, causing external connections such as tests and transfers to fail. For one day (25 Jan) the site network was down for upgrade to the 10Gb link to JANET. Some unexpected problems occurred extending the interruption from an hour to a day. The link has been successfully commissioned.
    • Lancaster: The ASAP metric for Lancaster for January is 97.5 %. There is a particular problem with ATLAS SAM tests which doesn’t affect the site activity in production and analysis and this relates to the path name being too long. A re-calculation has been performed.
    • RALPP: Both CMS and LHCb low figures are due to specific CMS jobs overloading the site SRM head node. The jobs should have stopped now.



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

  • N/A



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