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− | '''Tuesday 13th March''' | + | '''Tuesday 20th March''' |
− | Report from the last Tier1 - Experiments Liaison Meeting at on 7th March is [https://www.gridpp.ac.uk/wiki/Tier1_Operations_Report_2018-03-07 here]. | + | Report from the last Tier1 - Experiments Liaison Meeting at on 14th March is [https://www.gridpp.ac.uk/wiki/Tier1_Operations_Report_2018-03-14 here]. |
− | * The investigations into the broken RAL FTS service and failing transfer to RAL-LCG2-ECHO are continuing. We believe we understand the problem and a fix is in progress. | + | * The Castor intervention scheduled for 1st March that was cancelled owing to staff availability in the poor weather has been re-scheduled for Tuesday 27th March. |
− | * Batch farm upgraded to condor 8.6.9.
| + | * The previously reported problem with transfers to/from Echo via our FTS service since the Echo gateways were enabled for IPv6 is now fixed. A race condition was found in our system configuration utility (Quattor) which was causing the IPv6 configuration not to be applied correctly in some cases. This has now been fixed and we believe the problem is now resolved. While the problem was going on some VOs stopped using our (RAL) FTS but managed their file transfers using other FTS servers. |
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General updates
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Monday 5th March
- For the WLCG-HSF workshop: ideas, plans or proposals for technology watch activities requested. Please let Helge et. al. know by Monday 19 March. They would particularly appreciate proposals in the form of a single PowerPoint slide.
- GridPP technical meeting this Friday will focus on CentOS7. (Here is a link to 2nd March agenda for Vidyo details).
- WLCG baseline for Singularity - 2.4.2
- Need for JISC list VO-ADMINS.
- WLCG T2 availability & reliability - January 2018
Monday 26th February
- WLCG-HSF Workshop in Naples
- Minutes of the weekly WLCG weekly ops meeting are available here.
- Alessandra: Mentioned here grid enabled GPU behind an ARC-CE implementation.
- GalDyn and GridPP. Would like to submit work to DiRAC and make use of GridPP resources.
- GridPP40 registration is open.
- Rajan: SL7 UI Machine
Monday 12th February
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WLCG Operations Coordination - AgendasWiki Page
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Monday 5th March
- The agenda and minutes from the WLCG ops coordination meeting last week are available.
- Special topics were: CNAF recovery update; SAM recalculation policy draft discussion and Progress on WLCG Storage Space Accounting Prototype including tape metrics.
Tuesday 27th February
Monday 29th January
- The majority of T1 sites and VOs confirmed that they do use SAM tests from the critical profiles and regularly check A/R reports.
Suggestions for improvements:
- Propose policy for accepting A/R recalculation requests. The draft should be reviewed at the next meeting.
- VO should have flexibility in the definition of the critical profile. Though the impact of the changes in the critical profile should be carefully tested by the VO and should be announced in advance to the sites, no approval of the MB is required.
- Make tests as close as possible to the real production flow. ATLAS is planning some work in this direction.
- The proposal to include real production flows in the critical profile was not supported.
- Sites which do have local fabric monitoring like Nagios for example, are recommended to use an API to import test results into the local fabric monitoring. **This would help to avoid test failures staying unnoticed for months.
- Transparent navigation from the SAM UI to the log files is required to facilitate test failure debugging. This feature has to be preserved in the new SAM UI being developed by the monitoring team.
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Tier-1 - Status Page
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Tuesday 20th March
Report from the last Tier1 - Experiments Liaison Meeting at on 14th March is here.
- The Castor intervention scheduled for 1st March that was cancelled owing to staff availability in the poor weather has been re-scheduled for Tuesday 27th March.
- The previously reported problem with transfers to/from Echo via our FTS service since the Echo gateways were enabled for IPv6 is now fixed. A race condition was found in our system configuration utility (Quattor) which was causing the IPv6 configuration not to be applied correctly in some cases. This has now been fixed and we believe the problem is now resolved. While the problem was going on some VOs stopped using our (RAL) FTS but managed their file transfers using other FTS servers.
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Storage & Data Management - Agendas/Minutes
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Wed 14 Mar
- Reports from LHCOPN and UKT0 meetings
- Agenda for GridPP40 revisited - again
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Tier-2 Evolution - GridPP JIRA
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Tuesday 13 Mar
- Talking to CERN IT about how to provide ATLAS ETF (SAM) tests for Vac/Vcycle resources, including Vac-only sites. Inject tests into ATLAS HTCondor pools the VMs access. Same approach for ALICE? LHCb already covered with ETF probes running in the LHCb DIRAC VMs.
- Do we need to run the EGI ops tests? UCL doesn't.
- Need to decide how to provide installed capacity when not running a site BDII. WLCG InfoSys TF already discussing this. Can we accelerate things?
Tuesday 6 Mar
- Preparing Vac 3.0 release with Docker (and Singularity) container support, and updated Vacuum Pipes which allow VOs to define multiple types of VM without having to notify sites each time.
- Preparing Vcycle release with updated OpenStack API support, Vacuum Pipe support, and support for space-wide shutdown of VMs.
- LHCb DIRAC VMs have been updated to shutdown gracefully when signalled by OpenStack; GridPP DIRAC VMs to follow. This is part of a wider mechanism to allow sharing of resources between OpenStack projects of different priority, with eviction of lower priority VMs on demand.
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Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06
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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.
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Interoperation - EGI ops agendas Indico schedule
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Tuesday 6/3
Tuesday 27th February
Tuesday 30th January
Tuesday 23rd January
- There was an EGI Operations Meeting last Monday: Agenda
- Middleware
- Long list of updates in UMD 4.6
- UMD3 deprecation - start using UMD4 as soon as possible
- Products missing, let them know - this is a heads up
- Operations
- New weights in A/R
- "Several sites are still missing the necessary information for computing the weights: check on VAPOR the values published by your sites in order to properly publishing in the GLUE2 schema the number of logical CPUs and the Hep-Spec06 benchmark."
- http://operations-portal.egi.eu/vapor/resources/GL2ResSummary
- IPv6
- https://wiki.egi.eu/w/index.php?title=IPV6_Assessment
- webdav probes in production
- "During the January OMB we are going to discuss the inclusion of the probes in the operators and in the critical profile" [may be superceded]
- Storage accounting deployment
- "IMPORTANT: be sure to have installed the star-accounting.py script v1.0.4"
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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 5th March
- AM->GS. A quiet week last week.
Monday 29th January
- There were a couple of alarms which showed up on the dashboard, but not on the corresponding nagios.
- DB got fed up with Imperial failing the job-cancel test for CREAM -- the CE is just busy and returns the cancelled state about 30 s after the test 'fails' -- so she filed a ticket questioning the usefulness of the test: https://ggus.eu/?mode=ticket_info&ticket_id=133004.
Monday 20th November
- Generally quiet. There are three outstanding tickets: low availability at Birmingham, one at Liverpool which might just have gone green, and out-of-date IGTF CAs at Sheffield.
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Security - Incident Procedure Policies Rota
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Monday 5th March
Tuesday 6th February on 2018
- Update on Meltdown/Spectre
- Security Team meeting this afternoon
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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 19th February
Please could sites upgrade their perfsonar hosts to CentOS7. Instructions are here. Current OS versions here.
Monday 5th February
- 'Campus network engineering for data-intensive science workshop' in October 2016, had this agenda. Note particularly the Imperial and Cambridge overviews.
- There is a JISC document which seeks to help set expectations for what the network can deliver.
Monday 22nd January
Monday 20th November
- perfSONAR: No news.
- GridPP DIRAC: DPM & xrootd version. Upgrade due 16th November.
- RIPE ATLAS probes: Status & tests TBC
- The next LHCOPN/LHCONE meeting will be at RAL 6-7th March 2018. The UK position on LHCONE is being reviewed. RAL T1 will (likely) connect via the LHCOPN in the coming months. T2s watch this space!
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 12th March 2018, 14.30 GMT
42 Open UK Tickets this week.
SUSSEX
133325 (6/2)
This Availability ticket looks like it can be closed, with the alarms having gone green. In progress (8/3)
DURHAM
133338 (7/2)
Is this subject of Atlas ticket still causing problems? Lots of things were done at the last update - did they fix the issue? In progress (21/2)
TIER 1
133719 (27/2)
This ECHO ticket hasn't had an update since its acknowledgment, any news? In progress (27/2)
133717 (27/2)
Possibly related, this CMS FTS ticket hasn't had an update this month either. In progress (27/2)
Both of these issues look like they're related to this atlas ticket, which has been getting updates: 133752
133619 (21/2)
I have a feeling that this CMS unmerged file ticket can be closed, but I could be misreading the last updates. It's definitely work checking to see if it is solved. In progress (12/3)
133764 (1/3)
Finally, this Sno+ BDII ticket can be closed, the problem appears to have been at the source. In progress (8/3)
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Tools - MyEGI Nagios
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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.
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VOs - GridPP VOMS VO IDs Approved VO table
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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.
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