RAL Tier1 weekly operations castor 28/07/2014
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Revision as of 15:39, 25 July 2014 by Christopher Prosser 1e304264ea (Talk | contribs)
Contents
Operations News
- 2.1.14-13 upgrades now complete including switching off the compatibility mode.
- Elastic Search infrastructure has been fixed by James – we need to put tools on the admin node.
- Plan to ensure PreProd represents production in terms of hardware generation are underway. A student will be starting soon with the task of investigating visualisation and querying solutions for CASTOR use.
- Deployment of disk servers is due to restart next week.
Operations Problems
- low level db locking issues continue (various VOs) - has been reported to the developers at CERN.
- 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.
- Atlas Xrootd proxy issues - investigation starting.
- CMS xroot issues
- Facilities castor error
- LHCb possible IO problems - ticket raised and investigation started.
- Need to update dteam and ATLAS VOs' voms-servers
Blocking Issues
- Deployment issues - lsfadmin and amanda backup users clashing / look at removing amanda backup payload
Planned, Scheduled and Cancelled Interventions
- 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
- 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
- New VM configured to run against the standby CASTOR database will be created as a front-end for dark data etc queries.
- Replace DLF with Elastic Search
- Correct partitioning alignment issue (3rd CASTOR partition) on new castor disk servers
Interventions
- Facilities upgrade – Wed 30th July
Staffing
- Castor on Call person
- Rob - Weekend 26/27 July and following week
- Staff absence/out of the office:
- Dataservices away day Monday
- Chris Tuesday