| General updates
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- Reminder: WLCG workshop registration closes on 22nd.
Tuesday 5th January
Tuesday 15th December
- Simon: Raised a question about switch monitoring.
- WMSes:
- How many WMS servers do you have in production?
- How many and which VOs are enabled?
- Which VOs are using the service most?
- If possible, can you provide the jobs number submitted per month (and per VO) through your instances during the last year (Dec 2014 - Nov 2015)?
- Notes from Thursday's operations meeting.
- T2 reliability & availability reports for November 2015, with corrections applied.
- Govind: Process for dealing with lost files.
- Janet issued a statement regarding the DDoS last week.
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| WLCG Operations Coordination - AgendasWiki Page
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- Approach for configuring batch systems (e.g. setting up mem limits).
Tuesday 5th January
- Ops coordination meeting on 17th December. Minutes.
- The next meeting is on 7th January. Agenda.
Tuesday 7th December
- There was a WLCG operations coordination meeting last Thursday. Minutes | Agenda.
- Please register for the WLCG workshop.
- News: RedHat now fixing the openldap crash issue affecting Top BDII and ARC-CE. Stay tuned.
- T0: LSF 9 software deployed on all worker nodes
- T1: CC-IN2P3 & PIC: Globus host certificate validation changes
- T2: NTR
- ALICE: heavy ion run has been smooth from the grid perspective
- ATLAS: Tier-0 performance in terms of events/second reconstructed from the whole cluster are quite low (few tents of Hz), observed huge I/O wait in Wigner spinning disks nodes. Plan full reprocessing campaign start for the 14th of December.
- CMS: CMS Tier-0 workflows is driving some CERN Openstack hardware to its limits: GGUS:118056.
- LHCb: Significant MC generation in-coming. MC simulation workflows have been executed successfully on commercial clouds, on both DBCE (up to 600 simultaneous jobs running) and Azure.
- glexec: NTR
- M/J features: Ongoing discussions clarifying key/value pairs. Next steps to review experience with implementations and installations, and update in view of technical note discussions.
- HTTP TF: NTR
- Infro sys future: Future Use Cases Document is now ready in the WLCG Document Repository (PDF). Looking at information system owned by WLCG (an interesting idea). Starting to prepare a Roadmap to GLUE 2.0.
- IPv6: VOMS still does not work with IPv6. ARGUS not really tested but no problem expected as Java has good IPv6 support.
- MW readiness: Virtual meeting on 2nd December. Verification workflows in progress listed here.
- MC: NTR
- Network/transfer metrics: NTR
- RFC proxies: CMS have switched test pilot factories to RFC proxies.
- Squid monitoring/HTTP discovery: NTR
Monday 30th November
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| Tier-1 - Status Page
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Tuesday 5th January
A reminder that there is a weekly Tier-1 experiment liaison meeting. Notes from the last meeting here
- Operations over the holiday period were reasonable. There was a batch problem that became progressively worse leading up to, and through, Christmas. This was traced to changes impacting the performance of Condor and was fixed between Christmas and New Year. The AtlasDataDisk filled up around the time of the New Year causing problems for Atlas Castor and for tests to fail. There was a further Castor problem during the day on Monday 4th January with timeouts occurring within the Castor system. This problem has now disappeared but we do not yet understand the cause.
- We have been running for the last couple of weeks with the link between the UKLight Router and the RAL border router doubled to a pair of 10Gbit links. Effectively doubling our bandwith to Tier2s. However, a problem to do with ACLs on this link has led to problems - particularly affecting traffic (including SAM tests) overnight 5-6 Jan. We have reverted to a single 10Gbit link.
- We are investigating why LHCb batch jobs sometimes fail to write results back to Castor (and the sometimes fail to write remotely as well). A recent change has improved, but not fixed, this problem.
- The tenders for the next round of Disk and CPU purchases closed on Friday (18th December). Evaluation expected to be complete by end of week ending 8th Jan.
- Tape plans are being reviewed. In particular we are looking to move LHCb and then Atlas from the T10KC (5TB) to T10KD (8TB) generation tapes as this enables us to put more data on each tape. Details yet to be finalized.
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| Storage & Data Management - Agendas/Minutes
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Wedn 06 Jan (minutes to appear shortly, also for 16 Dec.)
- Merry and happy. Apart from Glasgow losing power, most T2s came through the hols relatively unscathed
- Excellent DiRAC progress over hols (thanks, Lydia!), now need Leicester started.
- More generally, GridPP as a data (only) infrastructure, bring your own compute. Good case, but you need to bring your own catalogue (more or less), too, which may not suit everyone.
- Will a future T2 be built on CEPH? Not likely...
Wednesday 09 Dec
- Filesystem dump at Cambridge successful, no problems, awaiting feedback from ATLAS
- T2C testing at Oxford "nearly ready", also need ATLAS to pick up the gauntlet now (CMS postponed till 2016)
Wednesday 02 Dec, not brought to you from the Brazilian Jungle.
- Implications of diskless T2s (aka T2C) - ongoing discussion - need results from tests soon...
- Several sites with old/decyaing/decommissioned hardware
- Namespace dump testing updates
Wednesday 18 Nov
- New member from Edinburgh!
- Updates on PRODDISK cleanup at T2s, catalogue synchronisation (aka syncat), and what does "world readable" mean?
- Summary of EGI community forum - interoperation and standards for moving data
Wednesday 11 Nov
Wednesday 04 Nov
- Brian presented GridPP achievements at the E2E workshop
- Storage accounting with EGI
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| Tier-2 Evolution - GridPP JIRA
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Tuesday 8 Dec
- Liverpool has set up Vac with 126 VM slots. LHCb production MC and GridPP SAM tests running.
- GridPP DIRAC VMs now working with new dirac.gridpp.ac.uk service: needed an ad-hoc configuration value adding (/Resources/Computing/CEDefaults/VirtualOrganization=gridpp) for the pilots due to the multi-VO support (GRIDPP-9)
- For rollout, would like to set up a JIRA component for each site (several exist already.) Will be mailing sites to get the site contacts involved before we add each site.
Tuesday 1 Dec
- Vac (0.20pre) now provides contexualization, metadata (EC2/OpenStack), and Machine/Job Features via HTTP rather than ISO image and NFS. (GRIDPP-27). This should allow VMs expecting to be run by OpenStack to work on Vac without modification.
- CernVM image signature checking, and APEL Sync record generation (GRIDPP-10) are now also in Vac 0.20pre.
Tuesday 24 Nov
- Cloud Init demonstrated with modified version of (old) GridPP DIRAC VMs
- Cloud Init support in Vac 0.20pre (GRIDPP-27)
- Progress on VMs for new GridPP DIRAC service: multi-VO config currently preventing matching. (GRIDPP-9)
Tuesday 17 Nov
- New depo.gridpp.ac.uk service for uploading files to via HTTPS
- ATLAS VMs now upload log files to depo.gridpp.ac.uk for debugging (GRIDPP-24)
Monday 9 Nov
- Vac 0.19.0 released last week: new VacQuery protocol
- Prototyping Vcycle(/Vac) GLUE2 publishing: talk at WLCG InfoSys Evolution TF on Thursday
- Please now use https://repo.gridpp.ac.uk/vacproject/ URLs for user_data and cernvm3.iso files (in preparation for move to new www.gridpp.ac.uk website.)
- See Laurence's GDB talk "Helix Nebula Price Enquiry Results" for more use of Vcycle
Tuesday 3 Nov
- LHCb prototype of GOCDB pointers to resource BDII done
- T2C tests at Oxford ongoing
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| Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06
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Tuesday 24th November
- Slight delay for Sheffield.
Tuesday 3rd November
- APEL delay (normal state) Lancaster and Sheffield.
Tuesday 20th October
The WLCG MB decided to create a Benchmarking Task force led by Helge Meinhard see talk
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| Documentation - KeyDocs
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Tuesday 1st December
- Sixt and hone have been removed from the GridPP list.
Tuesday 24th November
Steve J: problems with voms server at fnal, voms.fnal.gov, resolved. Approved VOs document updated with newest records for those VOs affected, CDF, DZERO, LSST. Also, note changes to CA_DN for PLANCK and CDF. https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs
Friday 6th Nov, 2015
SteveJ: Advice to admins published about a common GSS error, globus_gsi_callback_module: Could not verify
credential etc.
https://www.gridpp.ac.uk/wiki/Security_system_errors_and_workarounds
Tuesday 20th October, 2015
Approved VOs document updated with temporary section for LZ
Tuesday 29nd September
Steve J: problems with voms server at fnal, voms.fnal.gov, have been detected; I will resolve them soon and may issue an update to Approved VOs, alerting sites with TB_SUPPORT should that occur. Approved VOs potentially affected are CDF, DZERO, LSST. Please do not act act yet.
General note
See the worst KeyDocs list for documents needing review now and the names of the responsible people.
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| Monitoring - Links MyWLCG
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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.
Tuesday 31st March
Monday 7th December
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| On-duty - Dashboard ROD rota
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Monday 14th December
- Janet issue affected ROD dashboard access making it almost unusable.
- GGUS was updated on Wednesday (09/12/15) and was in downtime for two hours. The update did not go smoothly and the downtime was extended. The GGUS interface did not work through the dashboard for most of the morning on Wednesday.
- There were quite a few alarms throughout the week - most disappeared without intervention.
- Three open tickets remain against QMUL, RHUL and Lancaster.
Monday 30th November
- A quiet week, mostly just cloing alarms for not-in-production services. There are no open ROD tickets.
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| Rollout Status WLCG Baseline
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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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Tuesday 15th December
- No updates applicable for the UK
- News from elsewhere: EGI CSIRT activity is now suspending multiple sites following CVE-2015-7181/2/3, largely due to simple failure to acknowledge the notification, which was all that was required.
Tuesday 8th December
- EGI SVG Advisory 'Low' RISK - OpenSSL announcement on 3rd December.
- Keep OSes up-to-date.
Tuesday 2nd December
Tuesday 24th November
- Call on NGIs to participate in "Security Threat Risk Assessment - with Cloud Focus" work.
- Check Pakiti for CVE-2015-7183 issues.
Tuesday 17th November
- Advisory-SVG-2015-CVE-2015-7183 issued 06/11/2015: a few UK sites show as unpatched in EGI monitoring. WNs, as tested by the monitoring, may be less vulnerable than affected middleware services but they could be taken as an indication of general site readiness and sites are encouraged to check their status.
The EGI security dashboard.
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| Services - PerfSonar 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).
Tuesday 8th December
- Given the recent network issues and role of GridPP DIRAC, there are plans to have a slave DNS for gridpp.ac.uk at Imperial and hopefully the T1 too. Andrew will seek an update to the whois records and name servers once the other host sites are confirmed.
- Looking at the network problems this week will be of interest. Duncan supplied this link and Ewan the one for the dual stack instance.
Tuesday 6th October
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.
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| Tickets
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Monday 4th January 2015, 14.30 GMT
HAPPY NEW YEAR EVERYONE!
38 Open UK Tickets this year.
All-the-UK-tickets URL: http://tinyurl.com/nwgrnys
As Jeremy spotted, with Matt RB off to pastures new the Sussex tickets are looking a bit neglected, especially as one was reopened after his departure:
118337
118289
Finally in this Glasgow ticket the submitter gave two new links for the http taskforce monitoring: 118052
The links to the http tf monitoring pages are:
atlas: http://cern.ch/go/h8Rr
lhcb: http://cern.ch/go/Bk8J
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| Tools - MyEGI Nagios
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Monday 30th November
- The SAM/ARGO team has created a document describing Availability reliability calculation in ARGO tool.
Tuesday 6 Oct 2015
Moved Gridppnagios instance back to Oxford from Lancaster. It was kind of double whammy as both sites went down together. Fortunately Oxford site was partially working so we managed to start SAM Nagios at Oxford. Sam tests were unavailable for few hours but no affect on egi availibilty/reliability. Sites can have a look at https://mon.egi.eu/myegi/ss/ for a/r status.
Tuesday 29 Sep 2015
Following an air-conditioning problem at machine room in Oxford Tier-2 site on 26 September, gridppnagios(OX) was shut down and gridppnagios(Lancs) became active instance. Oxford site is in downtime until 1st Oct and it may be extended depending on the situation.
VO-Nagios was also unavailable for two days but we have started it yesterday as it is running on a VM. VO-nagios is using oxford SE for replication test so it is failing those tests. I am looking to change to some other SE.
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| VOs - GridPP VOMS VO IDs Approved VO table
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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.
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| Site Updates
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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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