Tier1 Operations Report 2019-03-04

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RAL Tier1 Operations Report for 4th March 2019

Review of Issues during the week 25th February 2019 to the 4th March 2019.
  • ARC CE’s are all upgraded and running. Issue appears to be solved.
  • gdss783 (ALICE disk) crashed and removed from production over the weekend (25th Feb). Back in production on Thursday 28th Feb.
  • gdss776 (LHCb disk) is having ongoing problems. It crashed the previous week and was put back in, it has crashed last week and was put into read-only mode on 1st March. There is a copy of all LHCb data on Echo.
  • Tuesday 26th February there was an intervention to physically move LHCb disk servers so that we could make room for the new deliveries.
  • CPU efficiencies still problematic. Ongoing investigations/work.
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
ARC-CE 26803 Yes Outage 25/2/2019 16:00 04/2/2019 13:00 7 Days ARC-CE01 draining and upgrade to ARC v5.4.3
  • 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
139990 cms in progress urgent 01/03/2019 04/03/2019 CMS_AAA WAN Access T1_UK_RAL xrootd segfaulted WLCG
139723 atlas in progress less urgent 15/02/2019 26/02/2019 Data Management - generic permissions on scratchdisk EGI
139672 other waiting for reply urgent 13/02/2019 04/03/2019 Middleware No LIGO pilots running at RAL EGI
139639 cms waiting for reply very urgent 12/02/2019 27/02/2019 CMS_AAA WAN Access file open error at RAL WLCG
139476 mice in progress less urgent 01/02/2019 01/03/2019 Other LFC dump for MICE VO EGI
139306 dteam in progress less urgent 24/01/2019 27/02/2019 Monitoring perfsonar hosts need updating EGI
138665 mice on hold urgent 04/12/2018 30/01/2019 Middleware Problem accessing LFC at RAL EGI
138500 cms in progress urgent 26/11/2018 12/02/2019 CMS_Data Transfers Transfers failing from T2_PL_Swierk to RAL WLCG
138033 atlas in progress urgent 01/11/2018 31/01/2019 Other singularity jobs failing at RAL EGI
GGUS Tickets Closed Last week
Request id Affected vo Status Priority Date of creation Last update Type of problem Subject Scope
139826 cms solved urgent 21/02/2019 26/02/2019 CMS_Data Transfers Failing transfers between PIC buffer and RAL Disk timing out WLCG
139793 ops verified less urgent 19/02/2019 25/02/2019 Operations [Rod Dashboard] Issue detected : org.sam.SRM-Put-ops@srm-alice.gridpp.rl.ac.uk EGI
139575 cms closed urgent 07/02/2019 27/02/2019 CMS_AAA WAN Access T1_UK_RAL SAM xrootd reads failing WLCG
138361 t2k.org solved less urgent 19/11/2018 01/03/2019 Other RAL-LCG2: t2k.org LFC to DFC transition EGI
137897 enmr.eu solved urgent 23/10/2018 28/02/2019 Workload Management enmr.eu accounting at RAL EGI

Availability Report

Day Atlas Atlas-Echo
2019-02-26 87 100
2019-02-27 100 100
2019-02-28 100 100
2019-03-01 100 100
2019-03-02 100 100
2019-03-03 100 100
2019-03-04 100 100
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2019-02-18 100 97
2019-02-19 100 99
2019-02-20 100 100
2019-02-21 100 99
2019-02-22 100 99
2019-02-23 100 100
2019-02-24 100 99
2019-02-25 100 99

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

Notes from Meeting.