Difference between revisions of "Operations Bulletin Latest"

From GridPP Wiki
Jump to: navigation, search
()
()
Line 107: Line 107:
 
<!-- *********************************************************** ----->
 
<!-- *********************************************************** ----->
 
<!-- ***********************Start T1 text*********************** ----->
 
<!-- ***********************Start T1 text*********************** ----->
'''Tuesday 27th March'''
+
'''Tuesday 10th April'''
Report from the last Tier1 - Experiments Liaison Meeting at on 14th March is [https://www.gridpp.ac.uk/wiki/Tier1_Operations_Report_2018-03-21 here].
+
Report from the last Tier1 - Experiments Liaison Meeting at on 4th April is [https://www.gridpp.ac.uk/wiki/Tier1_Operations_Report_2018-04-04 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 Castor intervention scheduled for 1st March that was cancelled owing to staff availability in the poor weather was successfully carried out on the 27th March. (This was an update to the back-end databases).
* There was a problem with xrootd access to our services that resulted in a number of GGUS tickets arriving. This was found to be an unexpected loss of a firewall rule and consequently packets being dropped. Once identified (on Tuesday 20th) the rule was been re-instated and the problem solved.
+
* An update to CEPH is being applied to Echo. This is a bugfix for the 'backfill' bug. This means it will be easier to add new hardware (new capacity) into Echo.
* CMS will be migrating data from Castor to Echo with this expected to start in a few weeks time.
+
 
* The problems with data flows through the site firewall being restricted is still present. New firewall equipment has been delivered and is scheduled for installation in a few weeks time.
 
* The problems with data flows through the site firewall being restricted is still present. New firewall equipment has been delivered and is scheduled for installation in a few weeks time.
 
<!-- **********************End T1 text************************** ----->
 
<!-- **********************End T1 text************************** ----->

Revision as of 13:15, 4 April 2018

Bulletin archive


Week commencing Monday 26th March 2018
Task Areas
General updates

Tuesday 20th March

  • The deadline for GridPP40 registration is 3pm today.


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

WLCG Operations Coordination - AgendasWiki Page

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.
Tier-1 - Status Page

Tuesday 10th April Report from the last Tier1 - Experiments Liaison Meeting at on 4th April is here.

  • The Castor intervention scheduled for 1st March that was cancelled owing to staff availability in the poor weather was successfully carried out on the 27th March. (This was an update to the back-end databases).
  • An update to CEPH is being applied to Echo. This is a bugfix for the 'backfill' bug. This means it will be easier to add new hardware (new capacity) into Echo.
  • The problems with data flows through the site firewall being restricted is still present. New firewall equipment has been delivered and is scheduled for installation in a few weeks time.
Storage & Data Management - Agendas/Minutes

Wed 04 Apr

  • Report from WLCG workshop in Naples

Wed 28 Mar

  • Report from Data Centre World expo

Wed 14 Mar

  • Reports from LHCOPN and UKT0 meetings
  • Agenda for GridPP40 revisited - again


Tier-2 Evolution - GridPP JIRA

Tuesday 3 Apr

  • Vac 02.00.03 released with a workaround for CernVM bug CVM-1501, which is due to a bug in Cloud Init 0.7.5 which CernVM 3 has used since Thursday of last week. VM creation fails due to malformed EC2 meta-data URLs.

Tuesday 27 Mar

  • Vac 3.0pre publishing capacity info and VO shares to GOCDB

Tuesday 20 Mar

  • Working Puppet configuration for Vac 3.0pre

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?


Accounting - UK Grid Metrics HEPSPEC06 Atlas Dashboard HS06

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.
Documentation - KeyDocs

Tuesday 6th March 2018

The DTEAM VO has now changed its VOMS server. Please see alert notice here: https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs


Tuesday 22nd Jan 2018

CHANGE TO APPROVED VOs

  • New Approved VO

A VO, solidexperiment.org, has been included in the GridPP Approved VOs document. Sites are requested to support this experiment, resources permitting.

https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs#Approved_Local_VOs

  • In the Ops Portal, LHCb mentions a new cvmfs mount, /cvmfs/lhcb-condb.cern.ch
  • A voms server for magic, voms02.pic.es, has an updated DN.

Tuesday 9th Jan 2018 Changes to Approved VOs.

a) VOMS servers for planck, ipv6.hepix.org and enmr are now restored to as they were before the flooding at CNAF. b) The DN of a VOMS server for magic has changed.

https://www.gridpp.ac.uk/wiki/GridPP_approved_VOs

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.

Interoperation - EGI ops agendas Indico schedule

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"
Monitoring - Links MyWLCG

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.


On-duty - Dashboard ROD rota

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.
Rollout Status WLCG Baseline

Monday 20th November



Historical References


Security - Incident Procedure Policies Rota

Tuesday 20th March

Communication challenge took place on Wednesday 14th March.


Monday 5th March


Tuesday 6th February on 2018

  • Update on Meltdown/Spectre
  • Security Team meeting this afternoon




Services - PerfSonar production dashboard |PerfSonar development dashboard | GridPP VOMS

- 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!


Tickets

Monday 26th March 2018, 15.00 BST
38 Open UK Tickets this week.

ECDF
131610 (3/11)
The only IPv6 ticket to see some recent action, there's some interesting information here about dual-stacking VMs running on hypervisors. In progress (22/3) Updated with some extra information and good progress.

134034 (14/3)
This LHCB ticket looks to be long solved, and can be closed. In progress (15/3) Solved

BRISTOL
133806 (2/3)
134081 (17/3)
Both of these Bristol CMS tickets could do with an update to show how things are coming along.

BRUNEL
133956 (9/3)
Have you managed to get started on this CMS xrootd config request? In progress (9/3) Raul updated the list with his plans.

QMUL
132713 (4/1)
Any luck tracking down the hyperk job errors? In progress (6/2)

RHUL
134144 (20/3)
It looks like the SRM problems are RHUL side according to all the atlas monitoring. If it helps I've had success clearing similar looking errors with restarts of the srmv2.2 services. In progress (21/3)

TIER 1
134136 (20/3)
This atlas "no such file" ticket sounds very familiar to the issues seen on the ECHO service (133992) and at Lancaster (133991 ). In progress (20/3)

Tools - MyEGI Nagios

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.


VOs - GridPP VOMS VO IDs Approved VO table

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.


Site Updates

Date



Meeting Summaries
Project Management Board - MembersMinutes Quarterly Reports

Empty

GridPP ops meeting - Agendas Actions Core Tasks

Empty


RAL Tier-1 Experiment Liaison Meeting (Wednesday 13:30) Agenda Meeting takes place on Vidyo.

Highlights from this meeting are now included in the Tier1 report farther up this page.

WLCG Grid Deployment Board - Agendas MB agendas

Empty



NGI UK - Homepage CA

Empty

Events
UK ATLAS - Shifter view News & Links

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.


UK CMS

Empty

UK LHCb

Empty

UK OTHER
  • N/A
To note

  • N/A