Tier1 Operations Report 2019-05-14

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RAL Tier1 Operations Report for 13th May 2019

Review of Issues during the week 5th May 2019 to the 13th May 2019.
  • We are seeing high outbound packet loss over IPv6. Central networking intend to perform a firmware update to the border routers (provisionally scheduled for Wednesday 22nd May).
  • On 7th May, LHCb finished their migration from Castor to Echo.
  • We have temporarily halted the setup of Tape for Dune while we bring the new Tape robot online.
  • CMS job failures were a result of incorrectly configured jobs trying to access all their data from a Finnish Tier-2.
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.
  • ALICE - 1000
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).

Request id Affected vo Status Priority Date of creation Last update Type of problem Subject Scope Solution
141108 dune in progress top priority 10/05/2019 15/05/2019 Workload Management Problem submitting DUNE jobs to RAL CEs EGI
140870 t2k.org in progress less urgent 25/04/2019 14/05/2019 Data Management - generic Files vanished from RAL tape? EGI
140773 lhcb in progress top priority 18/04/2019 08/05/2019 Storage Systems Removal of Echo unbearably slow WLCG
140447 dteam on hold less urgent 27/03/2019 14/05/2019 Network problem packet loss outbound from RAL-LCG2 over IPv6 EGI
140220 mice in progress less urgent 15/03/2019 15/05/2019 Other mice LFC to DFC transition EGI
139672 other in progress urgent 13/02/2019 30/04/2019 Middleware No LIGO pilots running at RAL EGI
GGUS Tickets Closed Last week
Request id Affected vo Status Priority Date of creation Last update Type of problem Subject Scope Solution
141105 ops solved less urgent 10/05/2019 14/05/2019 Operations [Rod Dashboard] Issues detected at RAL-LCG2 EGI The problem has been solved.
Details about the solution ---------

Passing tests now, thanks!


andrew mcnab

140932 enmr.eu solved less urgent 30/04/2019 08/05/2019 Other how to install cvmfs on worker nodes EGI Hi Enrico,

I'm going to make the assumption that as "it works perfectly", I can mark this ticket as solved.

Best regards

Darren

140887 atlas closed urgent 27/04/2019 13/05/2019 File Transfer UK RAL-LCG2 ransfer error with: srm-ifce err: Communication error on send WLCG This is not a RAL issue, but a problem with Wuppertalprod already ticketed at https://ggus.eu/index.php?mode=ticket_info&ticket_id=140883 .

Closing this ticket.

140758 lhcb closed urgent 17/04/2019 08/05/2019 File Access lhcbUser svcClass not working as it should ? WLCG Hi guys,

I'm assuming I can now resolve this one again?

Cheers

D.

Availability Report

Day Atlas Atlas-Echo CMS LHCB Alice OPS Comments
2019-04-22 100 100 100 100 100 100
2019-04-23 100 100 98 97 83 100
2019-04-24 100 100 100 100 100 100
2019-04-25 100 100 100 100 100 100
2019-04-26 100 100 100 100 100 100
2019-04-27 100 100 100 100 100 100
2019-04-28 100 100 100 100 100 100
2019-04-29 100 100 100 100 100 100
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2019-04-22 - 97
2019-04-23 100 100
2019-04-24 100 n/a
2019-04-25 100 n/a
2019-04-26 100 n/a
2019-04-27 100 99
2019-04-28 100 96
2019-04-29 100 96

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

Notes from Meeting.