| General updates
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Tuesday 12th February
Tuesday 5th February
- The EGI RP/RC A/R Report for January 2019 is available. UKI overall fine. Bham and RAL-LCG2 may wish to examine their results.
- A reminder.... Please could everyone think about their WLCG (and beyond) engagements and commitments and put anything of note in the wiki table here.
- Notes from yesterday's WLCG ops meeting are available. Issues at RAL noted by LHCb.
- It is CMS week this week.
- In case missed here is Elena's ATLAS update:
- https://ggus.eu/index.php?mode=ticket_info&ticket_id=138033: singularity jobs failing at RAL. A job that Alessandra submitted still has a problem with the home directory. Ral is trying to fix it.
- There was a power lost to a rack and the two storage nodes in it in Lancaster over weekend which cause a problem to ATLAS jobs. This was fixed on Monday.
- Raul asked for srmless atlas transfers for Brunel. Elena is changing transfer configuration in AGIS but the jobs are still failing. Peter will look into this.
- There was a discussion on lightweight ATLAS Grid sites @ADC weekly last week. Sheffield, Cambridge, Brunel, Durham, Bham and Sussex should become diskless sites.
- There is an ongoing discussion about LSST jobs on GridPP resources that may be of wider interest. Their VOMS was down so the question was raised about using GridPP VOMS or setting up another VOMS in the UK to read its data from the SLAC instance.
- The 9th DIRAC Users Workshop will be held in London 14. - 17. May 2019. Here is the registration link.
- December's WLCG A/R final report is available at via this link.
- The figures for January 2019 are now available and updates from 3 sites requested:
- Simon G asks: VAC with VM condor VM to support local batch jobs? Has anyone done it??
- EGI has started an HTCondor integration process and captures progress here: https://ggus.eu/index.php?mode=ticket_info&ticket_id=139377.
- End of Support for CREAM-CE: The CREAM working group has announced that official support for the CREAM-CE component will cease at the end of the EOSC-hub project, i.e. in Dec 2020. The CREAM working group will be providing full support until the end of 2019, including one minor release already scheduled. During 2020 only security updates will be released.
Tuesday 29th January
- Site information for ATLAS Sites Jamboree
Tuesday 22nd January
- There was a GDB last week: Agenda.
- ATLAS would like to start a more forceful migration to CentOS7 and have the vast majority of resources, if not all, migrated by June 1. Please track your status in our wiki.
- The latest from the WLCG ops meeting yesterday can be found here.
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| WLCG Operations Coordination - AgendasWiki Page
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Monday 10th December
- WLCG ops coordination meeting held Thursday 6th. minutes.
- IPv6 deployment update
- CentOS / CC7 timelines for lxbatch and lxplus
- Container WG update
- CREAM CE end of support is Dec 2020
- Next meeting 7th February 2019.
Tuesday 4th December
Tuesday 30th October
- The ops meeting is shifting to the 8th November.
Tuesday 16th October
- There was an ops coordination meeting on 11th October: Agenda/slides | Minutes.
- Next meeting is on 1st November.
Monday 8th October
- There will be an Ops Coordination meeting this Thursday 12th: Agenda.
Monday 17th September
- There was a WLCG ops coordination meeting last Thursday. The minutes are now available and the presentations uploaded to this agenda page.
- Highlights:
- A report on EOS incidents, improvements and plans
- DPM Storage Resource Reporting deployment TF introduction
- CMS CRIC is deployed in production
- Sites should upgrade perfSONAR to v4.1 on CentOS 7
- The next meeting is planned for 11th October.
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| Tier-1 - Status Page
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5th February 2019 Report for the Experiments Liaison Report (04/02/2019) is here.
- CPU Efficiencies have improved for CMS (>80%), although it is still fluctuating a lot. ATLAS has still 60 - 70% efficiency, Atlas liaison has investigated, the fluctuations look like mostly a result of a different mix of types of jobs, especially failed jobs and group production, which have a lower efficiency. The overall efficiency is similar, maybe a bit better than this time last year.
- The system drive in a disk server for LHCb failed on Thursday afternoon. This was a 14 generation machine (dual purpose for Ceph). The operating system was put on the SSD (to leave other disks for capacity), which is attached to the underside of the motherboard… Fabric is going to perform open heart surgery today to install another disk.
- The disk buffer in front of our new Castor tape instance almost filled up. Currently we don’t know the exact cause but on the 25th January (after several months of working perfectly), the Garbage collection daemon stopped working quickly and properly (clearing only a few files an hour). We have manually been wiping files from the tape buffer to keep space clear while we understand the problem.
- While we were investigating the full buffer we found that NA62 has been writing files to the “disk” endpoint on wlcgTape. This endpoint does not get written to tape and was designed for a small number of functional test files (e.g. SAM tests which get copied in and immediately deleted). There are ~197k files using up 11TB of space that as it currently stands will never be migrated to tape (and if they are not used will be deleted eventually). Most of these files have been written in the last few weeks. Tier-1 manager has started an urgent conversation with NA62 to find out how important these files are.
- ARC-CE04 has stopped working again. We are not sure if this is related to the number of LHCb jobs submitted to this CE or not. We have rolled out an updated version of the software to arc-ce05 for testing, which should fix the problem but at the very least it will mean that the ARC developers will need to look at the error. Unfortunately it is likely to break backward compatibility with some VOs. It would be desirable if we could get LHCb to submit their jobs more evenly across our CEs (currently the ratio is 0:25:25:50 for ARC-CE04[1-4] respectively).
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| Storage & Data Management - Agendas/Minutes
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Wed 05 Dec
- Rucio update - towards a recommended data management thing?
- IRIS needs a data lake? or distributed filesystem?
Wed 28 Nov
Wed 21 Nov
- DPM sites: We are now not recommending not upgrading to DOME! unless you're using YAIM
- More operational issues on IPv6 routed networks
Wed 14 Nov
- Interesting operational issue switching ATLAS from SRM to xroot
- Do we have a "data management solution" and if so, what does it look like?
Wed 07 Nov
- More "data lake" and documentation
- Progress with caching but need to watch access patterns
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| Tier-2 Evolution - GridPP JIRA
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Monday 14th January
- Separate problems with LHCb and ATLAS VM definitions being investigated
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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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| Documentation - KeyDocs
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Tuesday 12th Feb 2019
New CA DN for Biomed
<verbatim>
< VOMS_CA_DN="'/C=FR/O=CNRS/CN=GRID2-FR' "
---
> VOMS_CA_DN="'/C=FR/O=MENESR/OU=GRID-FR/CN=AC GRID-FR Services' "
</verbatim>
Tuesday 5th Feb 2019
For enmr, certificate of voms-02.pd.infn.it
New DN: /DC=org/DC=terena/DC=tcs/C=IT/L=Frascati/O=Istituto Nazionale di Fisica Nucleare/CN=voms-02.pd.infn.it,
New CA_DN: /C=NL/ST=Noord-Holland/L=Amsterdam/O=TERENA/CN=TERENA eScience SSL CA 3
Please check approved VOs: https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs
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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Friday 1st February
Thursday 17th January EGI OMB meeting
- CREAMCE to be out of support by Dec 2020
- More effort to fix accounting issue of HTCondor CE
Monday 14th January 2019
- No UK specific issue mentioned.
- IPv6 readiness plan is going to be summarized at OMB.
Thursday 15 Nov 2018
- Interesting discussion about UMD Product ID card
- Information System/BDII future
- Discussion about UK BDII plan and time line: Monitoring can be an issue
Monday 08 October 2018
- Argo notification is working so sites can subscribe to notification by enabling notification from GOCDB
Monday 17th September
- There was an EGI ops meeting on 10th September. The agenda page is here.
Tuesday 24 July
- EGI OPS meeting on 16 July 2018, meeting agenda [1]
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
Tuesday 24th April
- The next EGI OMB is on 3rd May
Tuesday 6/3
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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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Tuesday 5th February
- Birmingham decommissioning of SRM and BDII still going on so tickets are on hold.
- Few availability tickets on hold
- Lancaster has WebDav ticket on hold which seems to be effect of DOME rollout
Tuesday 14th August
- A couple of new availability tickets (QMUL and Lancaster), both for well-publicised reasons. Otherwise quiet. AM on shift this week.
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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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