Tier1 Operations Report 2018-12-10

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RAL Tier1 Operations Report for 10th December 2018

Review of Issues during the week 4th December to the 10th December 2018.
  • Argo tests for CMS Castor were failing on Monday and Tuesday last week (3rd and 4th December). This was as a result of a BDII problem (it stopped publishing the information).
  • There was a successful load test of the generator on Wednesday,
  • ~5% of SAM tests via GridFTP against Echo have been failing due to the “Address already in use” problem. We are investigating the problem and disabled NIS on the gateways as it is not needed and was using up ~13000 ports. We are monitoring to see if the situation improves.
  • CMS successfully migrated to the new consolidated Castor tape instance on Thursday (6th December).
  • The physical machine hosting MySQL databases for the Tier-1 (RT ticket system + LFC) died on Thursday. The service was restored from backup on Friday on a VM.
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
- - - - -
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 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
138762 cms on hold urgent 10/12/2018 10/12/2018 CMS_Data Transfers Transfers failing from FNAL to RAL_Disk WLCG
138760 cms in progress urgent 10/12/2018 10/12/2018 CMS_Data Transfers Transfers failing from RAL to CCIN2P3_Disk WLCG
138758 none in progress less urgent 10/12/2018 10/12/2018 File Transfer RAL-LCG2-ECHO: No such file or directory EGI
138736 cms in progress urgent 07/12/2018 10/12/2018 CMS_Facilities T1_UK_RAL intermittent SRM VOGet/VOPut failures WLCG
138665 mice waiting for reply urgent 04/12/2018 05/12/2018 Middleware Problem accessing LFC at RAL EGI
138500 cms in progress urgent 26/11/2018 07/12/2018 CMS_Data Transfers Transfers failing from T2_PL_Swierk to RAL WLCG
138361 t2k.org in progress less urgent 19/11/2018 07/12/2018 Other RAL-LCG2: t2k.org LFC to DFC transition EGI
138033 atlas in progress urgent 01/11/2018 30/11/2018 Other singularity jobs failing at RAL EGI
137897 enmr.eu in progress less urgent 23/10/2018 28/11/2018 Accounting enmr.eu accounting at RAL EGI


GGUS Tickets Closed Last week
Request id Affected vo Status Priority Date of creation Last update Type of problem Subject Scope
138715 atlas solved urgent 05/12/2018 07/12/2018 File Transfer RAL-LCG2-ECHO: Transfer errors as destintion WLCG
138663 cms unsolved urgent 04/12/2018 04/12/2018 CMS_Data Transfers Transfers failing from Swierk to RAL WLCG
138613 cms solved urgent 29/11/2018 05/12/2018 CMS_Data Transfers RAL Staging request WLCG
138584 cms solved urgent 28/11/2018 06/12/2018 CMS_AAA WAN Access T1_UK_RAL xrootd reads timing out WLCG
138461 lhcb verified less urgent 22/11/2018 06/12/2018 Information System RAL Top-BDII has OLD RETIRED Bristol Site-BDII not new Production GOC-DB Site-BDII in its info EGI
138331 cms closed urgent 16/11/2018 03/12/2018 CMS_Data Transfers Posible expired proxy at RAL WLCG
138315 cms closed urgent 15/11/2018 03/12/2018 CMS_Data Transfers Transfers failing from T2_US_Wisconsin to T1_UK_RAL_Disk WLCG
137822 lhcb solved top priority 18/10/2018 04/12/2018 File Transfer FTS server seems in bad state. WLCG

Availability Report

Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas Atlas-Echo CMS LHCB Alice OPS Comments
2018-12-04 100 100 96 100 100 90.6
2018-12-05 100 100 85 100 100 100
2018-12-06 100 100 70 100 100 97.95918
2018-12-07 100 100 84 100 100 -1
2018-12-08 100 100 80 100 100 -1
2018-12-09 100 100 81 100 100 -1
2018-12-10 100 100 87 100 100 -1
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2018-11-28 100 100
2018-11-29 100 99
2018-11-30 100 99
2018-12-01 100 100
2018-12-02 100 99
2018-12-03 100 99
2018-12-04 100 99

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

Notes from Meeting.