Difference between revisions of "Operations Bulletin 140915"

Tuesday 15th September

• As mentioned last week, GridPP is creating a Tier-2 Evolution working group.
• LCG-ROLLOUT glexec' missing in /cvmfs/grid.cern.ch/emi3wn-latest?'. Matt is making progress.
• Cambridge machine room relocation Wednesday 16th September.
• Registration for the EGI Community Forum 2015 in Bari is open. Agenda.
• There was a GDB at CERN last week: Agenda : Minutes. Agenda.
• Simon noted this (DIRAC doc link) was broken: https://github.com/gridpp/user-guides/blob/master/DIRAC-getting-started.md.
• Articles for the WLCG ops portal.

Tuesday 1st September

• From October/November, the EGI ops VO monitoring will be performed using RFC proxies, as opposed to legacy proxies.
• There will be a new filter for the critical profile for ATLAS WLCG SAM tests so that only production endpoints will be tested and taken into account for site availability metrics. This will be available from the SAM3 interface.
• CNAF: Due to a fire causing problems with one electrical supply line that happened last Thursday, the computing centre is running at lower capacity (around 30% less of the pledged capacity).
• Machine job features testing has hit a big according to Raul!
• The HNSciCloud PCP pilot proposal successful submission (refer to Andrew Sansum's talk at GridPP34 if you forget what this means!). The project intends to procure commercial cloud resources for FY17 and FY18. We will contribute 75K euro towards this activity and the EU will then top up to 250K euro.
• There was an EGI Operations Management Board last Thursday. There are no summary notes yet, but please take a look at the agenda and linked talks (may be worth skimming them at the ops meeting).
• There was a quick request/reminder for sites to please update their IPv6 entries in the GridPP wiki.
• RAL is closed on Monday and Tuesday of this week!

Tuesday 24th August

• A draft agenda for the September GDB is taking shape. Any Tier-2 rep volunteers this month please email Jeremy.
• Interest in HTCondor CE. (Ops thread 20/08).

Tuesday 18th August

• Root CA - Jens will provide a quick incident report of what went wrong!
• Notes from Monday's WLCG ops meeting are available.
• DPM tuning (raised my Matt D - 17/08)
• Developers@CERN Forum is an initiative of a group of developers targeting all software developers at CERN.
• Multicore inefficiencies: RAL - CMS allocated slots not used. Glasgow - the concern for us is CPU that was previously being used by ATLAS is no longer being used because of multicore size mismatches.
• RIPE ATLAS probe experience pages.
• Automating ATLAS consistency checking (See Alastair's email 12/08)
• For generating docs out of markdown Steve T can recommend gitbook. This is what CERN use for the Config guide.

Tuesday 15th September

• The next WLCG ops coordination meeting is this Thursday 17th September. Are there any Tier-2 issues we wish to raise? Minutes will appear here.

Tuesday 25th August

• Minutes from the meeting last Thursday are available.
• Highlights:
• Calling for volunteers to write articles on interesting topics for WLCG Operations. There is a section in the portal for this. In case you are interested, please send a mail to wlcg-ops-coord-chair people for details.
• CERN is going to disable in few weeks write operations via RFIO v2 to Castor in the context of the RFIO access decommission.
• A downtime for the Argus service @ CERN is expected due to the pending filer migration. No dates yet but it will affect ARGUS, all CEs and all batch worker nodes (glExec) running GridJobs. The downtime is foreseen to last 1h-2h.
• Issues with VMs in Tier-0 infra also reported by CMS
• LHCb is trying to integrate submission to the HTCondorCE instance @ CERN
• A message broker pre-prod infra has been setup @ CERN to enable distribution of perfSONAR data to the experiments. OSG is enabling the data publication from the ITB collector service
• Please observe the Action List in the minutes and on the WLCG Operations portal by clicking on the Task List relevant to: Sites: Experiments.

Tuesday 18th August

• Pretty quiet! Next ops coordination meeting is on 20th.

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

• Note RAL closed both Monday and Tuesday 31st Aug. and 1st Sep.
• The post-mortem review of the network incident on the 8th April has been finalised. See here.
• The Castor disk servers are being upgraded to SL6 (26/27 Aug).
• Entries declared in GOC DB for a brief network interruption (Thursday 3rd Sep) and a series of Castor interventions as the back-end Oracle database is upgraded to a later version.
• The MICE experiment will be taking data daily from the 8th September, when the ISIS neutron source restarts operation. This data will be stored at the Tier1.

Wednesday 02 Sep

• Catch up with MICE
• How to do transfers of lots of files with FTS3 without the proxy timing out (in particularly if you need it vomsified)

Wednesday 12 Aug

• sort of housekeeping: data cleanups, catalogue synchronisation - in particular namespace dumps for VOs
• GridPP storage/data at future events; GridPP35 and Hepix and Cloud data events

Wednesday 08 July

• Huge backlog of ATLAS data from Glasgow waiting to go to RAL, and oddly varying performance numbers - investigating
• How physics data is like your Windows 95 games

Wednesday 01 July

• Feedback on CMS's proposal for listing contents of storage
• Simple storage on expensive raided disks vs complicated storage on el cheapo or archive drives?

Wednesday 24 June

• Heard about the Indigo datacloud project, a H2020 project in which STFC is participating
• Data transfers, theory and practice
  • Somewhat clunky tools to set up but perform well when they run
  • Will continue to work on recommendations/overview document
  • Worth having recommendations/experiences for different audiences - (potential) users, decision makers, techies

Monday 20th July

• Oxford publishing 0 cores from Cream today. Maybe they forgot to switch one off. Check here.

Tuesday 14th July

• QMUL and Sheffield appear to be lagging with publishing by a week.
• Please check your multicore publishing status (especially those sites mentioned in June).

Tuesday 16th June

• Region not publishing accounting by number of cores.
  • "0" core submission hosts:
  • ce3.dur.scotgrid.ac.uk
  • ce4.dur.scotgrid.ac.uk
  • cetest02.grid.hep.ph.ic.ac.uk
  • hepgrid5.ph.liv.ac.uk
  • hepgrid6.ph.liv.ac.uk
  • hepgrid97.ph.liv.ac.uk
  • svr009.gla.scotgrid.ac.uk
  • t2ce06.physics.ox.ac.uk

Tuesday 9th June

• Delay noted for Sheffield

• A reminder to keep updating the HEPSPEC06 tables.

• APEL status: An issue at Sheffield?

Tuesday 18th August

• Lydia's document - Setup a system to do data archiving using FTS3

Tuesday 28th July

• Ewan: /cvmfs/gridpp-vo help ... there's a lot of historical stuff on the GridPP wiki that makes it look a lot more complicated than it is now. We really should have a bit of a clear out at some point.

Tuesday 23rd June

• Reminder that documents need reviewing!

General note

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

Monday 13th July

• There was an EGI Ops meeting today: agenda
• URT/UMD updates:
  • UMD 3.13.0 released on 01.07.2015: http://repository.egi.eu/2015/07/01/release-umd-3-13-0/
    • APEL 1.4.1
    • Argus PAP v. 1.6.2
    • gLExec-wn - v. 1.2.3 (lcmaps and mkdir)
    • storm 1.11.8
    • fetch-crl 3.0.16
    • cream 1.16.5
    • dpm-xroot 3.5.2
    • Xroot 4.1.1.
    • Frontier Squid 2.7.24
    • CVMFS 2.1.20
    • GFAL2 2.8.4
    • GFAL2-PYTHON 1.7.1
  • UMD 3.13.1 released on 13.07.2015: http://repository.egi.eu/2015/07/13/release-candidate-umd-3-13-1-rc1/ (link was not updated correctly during release)
    • ARC Nagios probes 1.8.3

• SR updates (small because it's summer):
  • • gfal2 2.9.1
    • storm 1.11.9
    • srm-ifce 1.23.1....
    • gfal2-python 1.8.1
  • In Verification
    • gfal2-plugin-xrootd 0.3.4

• Accounting
  • [John Gordon] "Of the WLCG sites we now have 97%+ of cpu reported with cores. I expect you all saw my recent email to GDB naming 16 sites. If one German and one Spanish site and the four Russians start publishing we will jump to 99%+"
  • New list of sites needing to update multicore accounting being prepared this evening (Monday) by Vincenzo

• SL5 decommissioning date March 2016;
• Next meeting 10th August

Monday 15th June

• There was an EGI operations meeting today: agenda.
• New Action: for the NGIs: please start tracking which sites are still using SL5 services: how many services, and for each service if still needed on SL5, if upgrades on SL5 services are expected). A wiki has been provided to record updates. Also interesting to understand who is using Debian.

Tuesday 16th June

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

Tuesday 31st March

• Glasgow Graphite/Grafana documentation: http://www.scotgrid.ac.uk/graphite/

Monday 7th December

• Meeting last Friday - agenda: https://indico.cern.ch/event/356853/ minutes: https://indico.cern.ch/event/356853/material/minutes/1.pdf
• This was the wrap-up meeting of the consolidation TF; the mailing list will remain extant for a while yet.

Tuesday 15th September

• Generally quiet. QMUL have some grumblyness with the CEs. However, I understand much of this is caused by the batch farm being busy. There are low-availability tickets 'on hold' for Liverpool and UCL.

Tuesday 1st September

• Gordon was on shift.
• Another very quiet week with no new tickets. We have two open ROD tickets, both of which are for A/R; one is against Cambridge, and the other is the now 53-day-old ticket at UCL.
• Next up.... Kashif again (thanks Kashif!)

Monday 24th August

• Kashif on shift.
• There were quite a few alarms throughout the week and many tickets were opened. All of the tickets were fixed within time limit.
• The certificate of the Argus server at sheffield expired but Elena got a new certificate quickly.
• Cambridge and UCL have low availibilty tickets and not much can be done about it except waiting for availibilty to reach 90%.

Tuesday 15th September

• UMD 3.13.3 is available.

Tuesday 12th May

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

Tuesday 17th March

• Daniela has updated the [ https://www.gridpp.ac.uk/wiki/Staged_rollout_emi3 EMI-3 testing table]. Please check it is correct for your site. We want a clear view of where we are contributing.
• There is a middleware readiness meeting this Wednesday. Would be good if a few site representatives joined.
• Machine job features solution testing. Fed back that we will only commence tests if more documentation made available. This stops the HTC solution until after CHEP. Is there interest in testing other batch systems? Raul mentioned SLURM. There is also SGE and Torque.

References

• Staged Rollout pages (now separated into EMI1 & 2), and the page listing the deployed versions is extractable from the bdii, so they should all be reasonably up-to-date:
• http://www.hep.ph.ic.ac.uk/~dbauer/grid/staged_rollout.html
• http://www.hep.ph.ic.ac.uk/~dbauer/grid/staged_rollout_emi2.html
• http://www.hep.ph.ic.ac.uk/~dbauer/grid/state_of_the_nation.html

Tuesday 15th September

• The security team meeting this week is cancelled. The next will be on 30th.

Tuesday 1st September

• The IGTF has released an [ https://rt.egi.eu/rt/Ticket/Display.html?id=9406 urgent update to the trust anchor repository (1.67)]
• Linda is working on a revision to the EGI Technology Questionnaire.

Tuesday 24th August

• EGI SVG Advisory "Moderate" RISK - dCache EGI-SVG-2015-9323
• EGI SVG Advisory 'Low' RISK - VOMs Potential DoS EGI-SVG-2014-7159
• EGI IGTF CA update, version 1.66-1 ticket created [EGI #9351], due August 31st.

The EGI security dashboard.

- 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).

Tuesday 18th August

• Next LHCOPN and LHCONE joint meeting: Science Park Amsterdam (NL) 28-29 of October 2015

Tuesday 14th July

• GridPP35 in September will have a part focus on networking and IPv6. This will include a review of where sites are with their deployment. Please try to firm up dates for your IPv6 availability between now and September. Please update the GridPP IPv6 status table.

Monday 7th September 2015, 15.00 BST
20 Open UK Tickets this week. Due to Interesting Downtimes (apologies for reusing that pun!) yet another fairly light review. But not much is going on in ticketland.

THE GGUS TICKETS IN ALL THEIR GLORY
The Sno+ ticket 115805 is interesting, Sno+ are looking at monitoring jobs submitted via WMS through the port 9000 URLS, but the RAL WMS behaves differently from the Glasgow one and doesn't let others with the same roles look at the links. Sno+ are still "developing" their grid infrastructure with the WMS in mind by the looks of it.

The pilot role at Sheffield ticket 114460 could still do with some attention, or an update.

Bristol had a ticket from CMS that looks interesting - 115883. The CMS SAM3 tests are confused by Bristol having an SRM-less SE endpoint. Waiting for reply after things were clarified.

T'Other VO Nagios Page
A few "The CREAM service cannot accept jobs at the moment" style errors at QM, but they're only a few hours old. Otherwise looking alright beyond the usual noise.

Of course with these light reviews I could well be missing something, so feel free to let me know - sites or VO representatives.

Tuesday 09 June 2015

• ARC CEs were failing nagios test becuase of non-availability of egi repository. Nagios test compare CA version from EGI repo. It started on 5th June and one of the IP addresses behind webserver was not responding. Problem went away in approximately 3 hours. The same problem started again on 6th June. Finally it was fixed on 8th June. No reason was given in any of the ticket opened regarding this outage.

Tuesday 17th February

• Another period where message brokers were temporarily unavailable seen yesterday. Any news on the last follow-up?

Tuesday 27th January

• Unscheduled outage of the EGI message broker (GRNET) caused a short-lived disruption to GridPP site monitoring (jobs failed) last Thursday 22nd January. Suspect BDII caching meant no immediate failover to stomp://mq.cro-ngi.hr:6163/ from stomp://mq.afroditi.hellasgrid.gr:6163/

• Blog about VO Nagios
• Oxford VO Nagios currently monitoring gridpp, pheno, t2k.org, snoplus.snolab.ca, vo.southgrid.ac.uk.

Tuesday 19th May

• There is a current priority for enabling/supporting our joining communities.

Tuesday 5th May

• We have a number of VOs to be removed. Dedicated follow-up meeting proposed.

Tuesday 28th April

• For SNOPLUS.SNOLAB.CA, the port numbers for voms02.gridpp.ac.uk and voms03.gridpp.ac.uk have both been updated from 15003 to 15503.

Tuesday 31st March

• LIGO are in need of additional support for debugging some tests.
• LSST now enabled on 3 sites. No 'own' CVMFS yet.

• Impact
  • Citation policy (https://www.gridpp.ac.uk/acknowledging.html)

Tuesday 24th February

• Next review of status today.

Tuesday 27th January

• Squids not in GOCDB for: UCL; ECDF; Birmingham; Durham; RHUL; IC; Sussex; Lancaster
• Squids in GOCDB for: EFDA-JET; Manchester; Liverpool; Cambridge; Sheffield; Bristol; Brunel; QMUL; T1; Oxford; Glasgow; RALPPD.

Tuesday 2nd December

• Multicore status. Queues available (63%)
  • YES: RAL T1; Brunel; Imperial; QMUL; Lancaster; Liverpool; Manchester; Glasgow; Cambridge; Oxford; RALPP; Sussex (12)
  • NO: RHUL (testing); UCL; Sheffield (testing); Durham; ECDF (testing); Birmingham; Bristol (7)

• According to our table for cloud/VMs (26%)
  • YES: RAL T1; Brunel; Imperial; Manchester; Oxford (5)
  • NO: QMUL; RHUL; UCL; Lancaster; Liverpool; Sheffield; Durham; ECDF; Glasgow; Birmingham; Bristol; Cambridge; RALPP; Sussex (14)

• GridPP DIRAC jobs successful (58%)
  • YES: Bristol; Glasgow; Lancaster; Liverpool; Manchester; Oxford; Sheffield; Brunel; IC; QMUL; RHUL (11)
  • NO: Cambridge; Durham; RALPP; RAL T1 (4) + ECDF; Sussex; UCL; Birmingham (4)

• IPv6 status
  • Allocation - 42%
  • YES: RAL T1; Brunel; IC; QMUL; Manchester; Sheffield; Cambridge; Oxford (8)
  • NO: RHUL; UCL; Lancaster; Liverpool; Durham; ECDF; Glasgow; Birmingham; Bristol; RALPP; Sussex

• Dual stack nodes - 21%
  • YES: Brunel; IC; QMUL; Oxford (4)
  • NO: RHUL; UCL; Lancaster; Glasgow; Liverpool; Manchester; Sheffield; Durham; ECDF; Birmingham; Bristol; Cambridge; RALPP; Sussex, RAL T1 (15)

Tuesday 21st October

• High loads seen in xroot by several sites: Liverpool and RALT1... and also Bristol (see Luke's TB-S email on 16/10 for questions about changes to help).

Tuesday 9th September

• Intel announced the new generation of Xeon based on Haswell.

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Wednesday 8th July 2015 Operations report

• Lots of preparation for the RAL Open Days. These start today (8th) and culminate in the public day on Saturday (11th).
• Intervention on faulty router being prepared for 4th August.

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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.

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• N/A