RAL Tier1 weekly operations castor 14/07/2014

Operations News

• 2.1.14-13 upgrade for Atlas Stagers completed over the course of last Tuesday/Wednesday (8th-9th July)
• Plan to ensure PreProd represents production in terms of hardware generation are underway.
• Elastic Search has been through some testing, others encouraged to use it, see Rob for details.
• Deployment of disk servers is due to restart next week.

Operations Problems

• A potential race condition which could result in data loss has been seen on CMS (2.1.14-13) while investigating a file that would not migrate to tape. CERN have been notified.
• The srmbed daemon on the Gen SRMs was unstable on 2014-07-11 (Friday). The reason for the problem was not identified, but it went away by, apparently by itself.
• A CMS db locking issue was seen during working hours on 2014-07-11. This will be reported to the developers.
• Atlas SUM test failures have stopped since dark data search ceased. A new VM configured to run against the standby database will be created as a front-end for such queries. Chris will be leading this.

Planned, Scheduled and Cancelled Interventions

• CASTOR 2.1.14-13 upgrade for Repack - planned for Tuesday or Wednesday this week.
• Switch-off of compatibility mode for Tier 1 Name Server
• Upgrade of Facilities CASTOR from 2.1.14-11 to 2.1.14-13.

Advanced Planning

Tasks

• Correct partitioning alignment issue (3rd CASTOR partition) on new castor disk servers
• Put V13 servers in NonProd into production (once name server compatibility mode change complete)
• Resume draining on the ATLAS instance (again, once name server compatibility mode change complete)
• Switch from admin machines: lcgccvm02 to lcgcadm05
• Replace DLF with Elastic Search

Interventions

• CASTOR 2.1.14-13 stager upgrades for Tier 1 - 8th July for Atlas

Staffing

• Castor on Call person
  • Rob

• Staff absence/out of the office:
  • Matt interviewing on Monday/Tuesday.