Tier1 Operations Report 2019-06-17

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RAL Tier1 Operations Report for 10th June 2019

Review of Issues during the week 3rd June 2019 to the 10th June 2019.
  • Ongoing, we are seeing high outbound packet loss over IPv6. Central networking performed a firmware update to the border routers but this didn’t resolve the issue. Plan to move connections to the new border routers in Mid June. Will do this before trying to debug any further.
  • Three certificates were revoked mistakenly on ARGUS on Thursday. All SAM tests failed until this was fixed the next morning. Batch farm also did not start any new jobs during this time. We used this accidental draining to reboot nodes that needed to pick up security patching.
  • LHCb Castor instance has been completely disabled for LHCb and will be decommissioned.
  • Brian Davies has transferred from his role as GridPP Tier-2 Storage Support Officer and has joined the Tier-1 Production Team. Although this has happened with immediate effect he will still be available for ad-hoc/informal storage support.
Current operational status and issues
Resolved Castor Disk Server Issues
Machine VO DiskPool dxtx Comments
- - - -
Ongoing Castor Disk Server Issues
Machine VO DiskPool dxtx Comments
- - - - -
Limits on concurrent batch system jobs.
Notable Changes made since the last meeting.
  • NTR
Entries in GOC DB starting since the last report.
Service ID Scheduled? Outage/At Risk Start End Duration Reason
- - - - - - - -
Declared in the GOC DB
Service ID Scheduled? Outage/At Risk Start End Duration Reason
- - - - - - - -
  • No ongoing downtime
Advanced warning for other interventions
The following items are being discussed and are still to be formally scheduled and announced.

Listing by category:

  • DNS servers will be rolled out within the Tier1 network.
Open

GGUS Tickets (Snapshot taken during morning of the meeting).

Ticket-ID Type VO Site Priority Responsible Unit Status Last Update Subject Scope
141638 USER cms RAL-LCG2 urgent NGI_UK in progress 2019-06-10 13:07:00 SAM XROOTD read failure at T1_UK_RAL WLCG
141637 TEAM lhcb RAL-LCG2 top priority NGI_UK in progress 2019-06-07 15:29:00 Very low running jobs for LHCb WLCG
141608 USER snoplus.snolab.ca RAL-LCG2 less urgent NGI_UK in progress 2019-06-06 08:55:00 Permissions on RAL SE EGI
141537 TEAM lhcb RAL-LCG2 very urgent NGI_UK in progress 2019-05-31 19:28:00 Pilots Failed at RAL-LCG2 WLCG
141462 TEAM lhcb RAL-LCG2 top priority NGI_UK in progress 2019-06-02 05:45:00 Error: Connection limit exceeded WLCG
141262 TEAM lhcb RAL-LCG2 very urgent NGI_UK in progress 2019-06-04 09:53:00 Users are getting [FATAL] Auth failed WLCG
140870 USER t2k.org RAL-LCG2 less urgent NGI_UK in progress 2019-05-14 13:19:00 Files vanished from RAL tape? EGI
140447 USER dteam RAL-LCG2 less urgent NGI_UK on hold 2019-05-22 14:20:00 packet loss outbound from RAL-LCG2 over IPv6 EGI
140220 USER mice RAL-LCG2 less urgent NGI_UK in progress 2019-05-15 11:07:00 mice LFC to DFC transition EGI
139672 USER other RAL-LCG2 urgent NGI_UK waiting for reply 2019-06-10 08:24:00 No LIGO pilots running at RAL EGI
GGUS Tickets Closed Last week
Ticket-ID Type VO Site Priority Responsible Unit Status Last Update Subject Scope
- - - - - - - - - -

Availability Report

Day Atlas Atlas-Echo CMS LHCB Alice OPS Comments
2019-05-27 100 100 100 100 100 100
2019-05-28 100 100 90 100 98 100
2019-05-29 100 100 85 100 100 100
2019-05-30 100 100 90 100 93 100
2019-05-31 100 100 100 100 89 100
2019-06-01 100 100 100 95 89 100
2019-06-02 100 100 100 100 84 100
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2019-05-27 100 98
2019-05-28 100 98
2019-05-29 100 99
2019-05-30 100 100
2019-05-31 100 100
2019-05-01 100 99
2019-05-02 100 100

Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud

Notes from Meeting.