| General updates
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Monday 30th October
- Input for WLCG ops coordination meeting.
- EGI related items:
- TB-SUPPORT communications
- Computing Insight UK 2017 registration closes on Tuesday. This year the theme is "Joining Up the UK e-Infrastructure”.
Monday 23rd October
- WLCG ops update from Monday 23rd.
- Some TB-SUPPORT queries in the last 10 days:
- Alessandra asked about: arc, htcondor, cgroups limit setup. A user was using x13 more memory!
- Govind asked: How do you monitor your network switches i.e Force10/dell switches?
- Simon asked: is anyone buying or recently bought new network switches for their Tier2?
- Chris: ELK stack, do you put all the different sources of data into the same indexes in elastic search or do you have separate sets of indexes for different data sources.
- 10th October: If you are willing to add support for NA62 on your Tier-2 site please have a look at the details in the wiki.
Tuesday 10th October
- There is a GDB this Wednesday. Agenda
- EGI Trust Anchor 1.86-1 has just been released.
- The T2 figures for September have been circulated.
- ALICE
- ATLAS
- Liverpool: 79%:89%
- Sheffield: 88%:88%
- CMS
- LHCb
- Issues encountered:
- Sheffield: One WN had a CVMFS access problem.
- Oxford: BDII is dual stack. New switch/router changed IPv6 setup. CERN’s BDII could not see site. Site lost from REBUS.
- Simon asked about: ATLAS WN specs.
- GridPP40 - Pitlochry April 10,11th 2018
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| WLCG Operations Coordination - AgendasWiki Page
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Monday 23rd October
- The next WLCG ops coordination meeting will be on 2nd November.
Tuesday 10th October
- There was an ops coordination meeting last Thursday 5th October: Agenda | Minutes.
- There is one action for us to follow-up: "Collect plans from sites to move to EL7". We could make use of the Batch Systems table.
Tuesday 3rd October
- The next WLCG ops coordination meeting will be on 5th October - agenda.
Tuesday 19th September
- The agenda and minutes from the WLCG ops meeting on 14th September are now available.
- The next meeting is planned for 5th October.
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| Tier-1 - Status Page
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Tuesday 31st October
A reminder that there is a weekly Tier-1 experiment liaison meeting. Notes from the last meeting here
- Last Tuesday CMS was switched to use Echo for SAM tests. There was a problem with this and the change was reverted. The switch was made again on Monday 30th. This time is seems to be working for SAM tests. Chris Brew is to arrange a test on production data in Echo.
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| Storage & Data Management - Agendas/Minutes
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Tuesday 3rd October
- Looking for small DPM ATLAS site to possibly test xrootd caching
- Tracking upgrade of SEs to new what will be new baseline versions. (dCache sites updated; 6/14 DPM up-to-date)
- Alastair D. to give T2 site storage evolution talk 4/10/17 at gridpp-storage meeting
Wednesday 06 Sep
Wednesday 30 Aug
- How will experiments use object stores in the future? Could the Sept. pre-GDB clarify this?
- Fair bit of stuff known about advantages and disadvantages of erasure coding data, compressing data, etc. prior to storing it.
- Bristol's curious missing SE - dropped out of the information system?
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| Tier-2 Evolution - GridPP JIRA
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Tuesday 3 Oct
- Productions tests of Vac 03.00pre at Manchester.
Tuesday 19 Sep
- Running LHCb production MC in Docker and Singularity containers on Vac. Since GridPP39, CPU and memory cgroups wrapper around Singularity Containers has been added.
Tuesday 5 Sep
- Docker and Singularity container support in Vac 03.00pre
Tuesday 29 Aug
- Prerelease of Vac-in-a-Box (i.e. GitHub master) is now running on CentOS 7, for Vac 02.01.
- Aiming for combined Vac/Vac-in-a-Box release with CentOS 7, but with continued SL6 support for Vac.
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| Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06
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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.
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| Documentation - KeyDocs
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Tuesday 26th Sept 2017
- Safari on macOS autogenerated client certificates fix put into production last week.
Tuesday 19th Sept 2017
- Bug in Safari on macOS causes random Apple generated client cert to be presented to www.gridpp.ac.uk using a CA we don't know about. The connection is then rejected by Apache. Other browsers ok since we request but do not require that they supply a certificate. Workaround produced by (a) installing the Apple CA root and intermediary CA and (b) whitelisting UK e-Science DNs (+ CERN? Others?) in the HTTPS Wiki plugin. Tested but not yet in production.
Tuesday 5th Sept 2017
New Approved VO. SKA European regional data centre, skatelescope.eu
https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs
This VO is ramping up and has requested support. Andrew McNab is the contact person for GridPP.
General note
See the worst KeyDocs list for documents needing review now and the names of the responsible people.
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| Interoperation - EGI ops agendas Indico schedule
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Monday 9th October
- MW
- UMD 4.6 in November
- UI, CREAM, ARGUS
- If not before in 4.5.1
- UMD Preview update on 22/9
- not rooted 4.7.0 has a bug, wait for update
- CREAM version in Preview, please test if applicable (leading to release as noted above)
- Ops
- cASO (OpenStack Accounting extractor) update: 100%IT done (GGUS ticket 130665)
- A/R nothing to report
- Computation Power
- Sites check data by end of the month
- EMI WMS
- mice noted as being enabled on DIRAC
- IPv6 Readiness
- Would be useful for us to provide a report
- webdav probes
- If you're advertising a webdav endpoint, make sure it's in the GOC DB
- Storage accounting deployment
- Enable by 30th October; tickets to follow. Note that per broadcast new data currently not showing, please ticket on errors in logs only
Tuesday 29th August
- There was an EGI Ops meeting last Monday. Agenda
- UMD 4.5 is out with CentOS 7 WN package (see broadcast)
- NGI_UK QoS ticket mentioned in agenda but not in meeting QoS ticket
- Proposal: WMS will be removed from production starting from 1st January 2018
- NGIs/ROCs please start discussing with sites and provide suggestions for the overall plan for IPv6
- WebDAV reporting: The Operations Centres are asked to verify with their sites if the webdav protocol is really (intentional) enabled on their storage elements (if not, the information should be removed from the BDII), and report to EGI Operations
- Next meeting 11th September https://indico.egi.eu/indico/event/3352/
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| Monitoring - Links MyWLCG
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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.
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| On-duty - Dashboard ROD rota
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Monday 23rd October
- Generally quiet. RHUL affected by some transient issues. ECDF triggered low availability alarm a few weeks ago and still has time to go before it clears.
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| Rollout Status WLCG Baseline
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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
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| Security - Incident Procedure Policies Rota
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Monday 30th October
- EGI SVG ALERT [TLP:WHITE] Up to 'CRITICAL' risk, kernel exploit CVE-2017-7184 and others [EGI-SVG-CVE-2017-7184]
- Upcoming meetings
- Details and registration for SOC WG Workshop in December: Advert Indico
Monday 23rd October
Tuesday 10th October
Tuesday 3rd October
- EGI SVG ADVISORY [TLP:WHITE] 'HIGH' risk Linux kernel local root vulnerability CVE-2017-1000253
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| Services - PerfSonar production dashboard |PerfSonar development dashboard | GridPP VOMS
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- 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 23rd October
- The LHCOPN/ONE meeting took place last week at KEK, co-hosted with the HEPiX Fall meeting.
- You can find a short report of the meeting here.
- All the slides presented are available in the agenda.
Tuesday 4th July
- Pete C is preparing another networking forward look document. Note that figures presented in the Manchester workshop were for a Tier-2 (not always a single site).
here
- Duncan has recreated the UK perfSONAR mesh. Link here!
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| Tickets
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Monday 30th October 2017, 15.00 GMT
19 Open UK Tickets this week.
LHCB Tickets
131107 (Glasgow)
130787 (Cambridge)
LHCB only have two tickets in the UK - but both are needing input from the VO. In the case of the Glasgow ticket it's to see if the problems persist a week later, for the Cambridge ticket it's to provide feedback to John.
Xroot of All Evil
A couple of UK tickets this week highlighted some xroot oddness.
131354 (Glasgow)
I brought up this atlas ticket out of interest as it documents a problem Glasgow have been seeing being, the root cause being too many xroot connections to a server. As was mentioned in an atlas meeting last week this could be worrying xroot behaviour.
131328 (RALPP and Bristol)
This CMS ticket discusses some xroot authentication behaviour. There's some good snippets for anyone doing something exciting with xroot redirectors.
A Ticket that Fixed Itself?
130264 (28/8)
The last update on this biomed arc publishing ticket notes how the publishing seems to be magically working again. Did you do something Chris? It might be relevant to Brunel's ticket (130263) if you did! In progress (27/10)
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