RAL Tier1 weekly operations castor 16/03/2015
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Contents
Operations News
- 5 * V11 disk servers have been reassigned to aliceDisk
- Draining - Atlas still draining
- new oracle client 11.2.04 on vcert2 config in place
- new client box (for db data dumps nsfinds etc)
- oracle 11.2.04 bug is apparently present it current version - never seen by RAL. CERN have a workaround in place on castor 2.1.15
Operations Problems
- SRM certs need renewing (expire 22/3)
- GDSS757 cmsDisk now drained and out or production / now with Fabric awaiting new motherboard
- Issue with missing files in LHCb – race condition reported to CERN
- Atlas are putting files (sonar.test files) into un-routable paths - this looks like an issue with the space token used. Brian / Rob actions below.
- There is a problem with latest gfal libraries - not a new problem but Atlas are starting to exercise functionality and identifying these issues
- storageD retrieval from castor problems - investigation ongoing
- CMS heavy load & high job failure – hot spotting 3 servers, files spread to many servers which then also became loaded. CMS moved away from RAL for these files. Need to discuss this issue in more detail.
- castor functional test on lcgccvm02 causing problems - Gareth reviewing
- 150k zero size files reported last week have almost all been dealt with, CMS files outstanding
- Files with no ns or xattr checksum value in castor are failing transfers from RAL to BNL using the BNL FTS3 server.
Blocking Issues
- grid ftp bug in SL6 - stops any globus copy if a client is using a particular library. This is a show stopper for SL6 on disk server.
Planned, Scheduled and Cancelled Interventions
- Upgrade Oracle DB to version 11.2.0.4 (Late February?)
- 2.1.14-15 Facilities on Tuesday 31st March, and Tier 1 on Wednesday 8th April (expected outage 4 hours TBC)
Advanced Planning
Tasks
- SL6 tape server
- Bruno working on SL6 disk servers
- DB team need to plan some work which will result in the DBs being under load for approx 1h
- Provide new VM? to provide castor client functionality to query the backup DBs
- Plan to ensure PreProd represents production in terms of hardware generation are underway
- Possible future upgrade to CASTOR 2.1.14-15 in March or April
- Switch from admin machines: lcgccvm02 to lcgcadm05
- Correct partitioning alignment issue (3rd CASTOR partition) on new castor disk servers
Interventions
Actions
- Rob - revisit deployment plans (esp people in office towards the end of March)
- Brian - On Wed, tell Tim if he can start repacking mctape
- Rob - change checksum validator so it maintains case when displaying
- Rob - talk with Shaun to see if its possible to reject anything that does not have a spacetoken
- Brian - to discuss unroutable files / spacetokens at at DDM meeting on Tuesday
- Rob to pick up DB cleanup change control
- Bruno to document processes to control services previously controlled by puppet
- Gareth to arrange meeting castor/fab/production to discuss the decommissioning procedures
- Chris/Rob to arrange a meeting to discuss CMS performance/xroot issues (is performance appropriate, if not plan to resolve) - inc. Shaun, Rob, Brian, Gareth
- Gareth to investigate providing checks for /etc/noquatto on production nodes & checks for fetch-crl
Staffing
- Castor on Call person
- Matt from Tuesday (Chris just Monday this week)
- Staff absence/out of the office:
- Matt – back Tues
- Rob – back on Monday 30th
- Shaun – back on Monday 30th (for a couple of days only)
- Brian – out for approx 2 months (mixture of conferences and holiday)