RAL Tier1 weekly operations castor 21/03/2016

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Operations News

  • NSS patching on Tier1 was successful
  • 4 atlas disk servers in passive draining
  • CERN suggested 2.1.16 deployed to tape servers (Steve Murray)

Operations Problems

  • draining is not working for atlas (does however seem to work on LHCb)
  • transfermanager on atlas dlf was not performing TM tasks but was reporting as being up
  • 2.1.15 - would like to reconfigure oracle to use physical memory only - no swap, Testing in preprod now. Also advanced queue configuration testing on preprod against raltags db.
  • CV11 disk sever raid patching - Monday after change control
  • 2.1.15 Problems re config required for production to solve slow file open times - Andrey reports that CERN use 100GB of memory for DB servers in castor to run 2.1.15 (vs our 32GB), Oracle are not providing adequate support at the moment. 2.1.15 deployment will not be scheduled at the moment.
  • Could not drain gdss702 (castor 2.1.15) in Preprod (all files failed according to draindiskserver -q) - does draining work in 2.1.15?


Planned, Scheduled and Cancelled Interventions

  • Tuesday 22/03/16 - NSS patch for castor fac etc inc. DB Juno
  • 2.1.15 update to nameserver will not go ahead. This is due to slow file open times issues on the stager. Testing/debugging of stager issue is ongoing. If these issues are resolved propose nameserver upgrade on 16th March with stager following week, 22nd March. (RA)


Long-term projects

  • RA has produced a python script to handle SRM db duplication issue which is causing callouts. This script has been tested and will now be put into production, as a cron job. This should be a temporary fix, so a bug report should be made to the FTS development team, via AL.
  • JJ – Glue 2 for CASTOR, used for publishing information. RA writing data getting end in python, JJ writing Glue 2 end in LISP. No schedule as yet.
  • Facilities drive re-allocation. ACTION: RA
  • SRM 2.1.14 testing with SdW on VCERT
  • SRM db dups script - needs automating


Advanced Planning

Tasks

  • CASTOR 2.1.15 implementation and testing


Interventions

  • NSS patching for castor fac etc

Staffing

  • Castor on Call person next week
    • RA
  • Staff absence/out of the office:
    • BD - out Tuesday, Wed Thurs (at a conf)
    • GS only in on Tuesday


New Actions

  • None this week!

Existing Actions

  • BD mice ticket - asking for a separate tape pool for d0t1 for monticarlo
  • GS is there any documentation re handling broken CIPs (raised following CIP failure at weekend)
  • GS Callout for CIP only in waking hours?
  • RA CV11 firmware updates
  • BD to clarify if separating the DiRAC data is a necessity
  • BD ensure quattorising atlas consistency check
  • RA to deploy a 14 generation into preprod
  • BD re. WAN tuning proposal - discuss with GS, does it need a change control?
  • RA to try stopping tapeserverd mid-migration to see if it breaks - ask Tim.
  • RA (was SdW) to modify cleanlostfiles to log to syslog so we can track its use - under testing
  • GS to investigate how/if we need to declare xrootd endpoints in GOCDB BDII - progress
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