Tier1 Operations Report 2018-11-13

From GridPP Wiki
Jump to: navigation, search

RAL Tier1 Operations Report for 5th November 2018

Review of Issues during the week 30th October to the 5th November 2018.
  • We have noticed that our CV17 storage nodes have been randomly rebooting. These nodes are not fully weighted up in Echo and further increases have been stopped while the problem is sorted out. A firmware update is being pushed out. Machines that have the new firmware appear to be fixed, but we are still gathering statistics. It should be noted that there has been no observed impact from the user perspective.
  • On 7th November, the first LHCb space token was migrated from Castor to Echo. This is the FAILOVER space token which is used by jobs from other sites if their storage is down.
  • NA62 were successfully migrated to the new consolidated Castor tape instance.
  • ATLAS are unable to get their jobs via singularity to work. We believe this is because they require privileged containers and we are currently only offering unprivileged ones. We would hope that ATLAS could improve their code.
  • CMS AAA issue remains ongoing, but we believe the situation is improving. We updated the XRootD version to fix a known bug on Friday and the amount of red in the SAM tests dropped over the weekend.
Current operational status and issues
  • NTR
Resolved Castor Disk Server Issues
Machine VO DiskPool dxtx Comments
- - - - -
Ongoing Castor Disk Server Issues
Machine VO DiskPool dxtx Comments
gdss736 LHCb - lhcbDst d0t1
gdss788 WLCG - gridTape d0t1


Limits on concurrent batch system jobs.
  • None currently enforced.
Notable Changes made since the last meeting.
  • ATLAS migrated to the new tape instance (wlcgTape) on Wednesday 31st October. ATLAS are now completely off their old instance which will be decommissioned. CMS and non-LHC VOs will follow before Christmas.
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
  • No downtime scheduled in the GOCDB for next 2 weeks
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
138103 cms in progress urgent 05/11/2018 05/11/2018 CMS_Data Transfers Transfers failing from RALPP to RAL WLCG
138077 cms in progress urgent 02/11/2018 05/11/2018 CMS_SAM tests SAM test critical T1_UK_RAL WLCG
138033 atlas in progress urgent 01/11/2018 01/11/2018 Other singularity jobs failing at RAL EGI
138028 lhcb in progress urgent 01/11/2018 01/11/2018 File Access File cannot be staged WLCG
137897 enmr.eu waiting for reply urgent 23/10/2018 05/11/2018 Accounting enmr.eu accounting at RAL EGI
137822 lhcb in progress top priority 18/10/2018 31/10/2018 File Transfer FTS server seems in bad state. WLCG
137752 other in progress less urgent 15/10/2018 02/11/2018 VO Specific Software Replicate OSG CVMFS repositories to EGI stratum 1s EGI
137650 cms in progress very urgent 09/10/2018 02/11/2018 CMS_AAA WAN Access Low HC xrootd success rates at T1_UK_RAL WLCG
137153 t2k.org in progress urgent 12/09/2018 05/11/2018 Data Management - generic LFC entry has file size 0, preventsw registering of additional replicas EGI
GGUS Tickets Closed Last week
Request id Affected vo Status Priority Date of creation Last update Type of problem Subject Scope
138007 snoplus.snolab.ca solved less urgent 30/10/2018 05/11/2018 File Access RAL drops connection after 180s of downloading EGI
138002 cms solved top priority 30/10/2018 05/11/2018 CMS_Data Transfers Issues with RAL FTS WLCG
137994 cms solved urgent 30/10/2018 05/11/2018 CMS_Data Transfers Transfers failing between RAL and T1_FR_CCIN2P3_Disk WLCG
137942 cms solved urgent 25/10/2018 05/11/2018 CMS_Data Transfers Failing transfers via IPv6 between T1_UK_RAL and T1_DE_KIT WLCG
137792 cms closed urgent 17/10/2018 31/10/2018 CMS_SAM tests Site readiness error and SAM3 SRM critical for T1_UK_RAL WLCG
137791 atlas closed urgent 16/10/2018 31/10/2018 File Transfer RAL-LCG2-ECHO: TRANSFER globus_ftp_control: The certificate has been revoked WLCG
137788 cms closed urgent 16/10/2018 31/10/2018 CMS_Facilities T1_UK_RAL SRM tests failing WLCG
137723 cms closed urgent 14/10/2018 29/10/2018 CMS_Data Transfers PhEDEx component Agent Watchdog donw at T1_UK-RAL WLCG

Availability Report

Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas Atlas-Echo CMS LHCB Alice OPS Comments
2018-10-30 100 100 97 100 37 100
2018-10-31 100 100 100 100 100 100
2018-11-01 100 100 100 100 100 100
2018-11-02 100 100 87 100 100 100
2018-11-03 100 100 94 100 100 100
2018-11-04 100 100 98 100 100 100
2018-11-05 100 100 96 100 100
2018-11-06 100 100 82 100 100 100
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2018-10-30 100 99
2018-10-31 100 99
2018-11-01 100 98
2018-11-02 100 97
2018-11-03 100 100
2018-11-04 100 99
2018-11-05 97 99
2018-11-06 - -

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

Notes from Meeting.