RAL Tier1 Operations Report for 27th March 2018
Review of Issues during the week 21st to 27th March 2018
|
- The Castor intervention scheduled for 1st March that was cancelled owing to staff availability in the poor weather has taken place on Tuesday 27th March.
- CMS will be migrating data from Castor to Echo with this expected to start in a few weeks time.
Current operational status and issues
|
- The problems with data flows through the site firewall being restricted is still present. New firewall equipment has been delivered and is scheduled for installation in a few weeks time.
Resolved Castor Disk Server Issues
|
- gdss622 (d0t1) - genTape - Drive physically moved and re-cabled. Issue found with new cables not working, has now been resolved.
Ongoing Castor Disk Server Issues
|
Limits on concurrent batch system jobs.
|
Notable Changes made since the last meeting.
|
Entries in GOC DB starting since the last report.
|
Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
All Castor
|
SCHEDULED
|
OUTAGE
|
27/03/2018 10:00
|
27/03/2018 16:00
|
6 hours
|
Outage to Castor Storage System while back-end databases are patched. During the intervention both Castor disk and tape will be unavailable.
|
Advanced warning for other interventions
|
The following items are being discussed and are still to be formally scheduled and announced.
|
- Replacement (upgrade) of RAL firewall scheduled for a few weeks time.
Listing by category:
- Echo
- Applying minor CEPH update to fix the "backfill" bug. Increase number of placement groups and add more capacity.
- Castor:
- Update systems to use SL7 and configured by Quattor/Aquilon. (Tape servers done)
- Move to generic Castor headnodes.
- Networking
- Extend the number of services on the production network with IPv6 dual stack. (Done for Perfsonar, FTS3, all squids and the CVMFS Stratum-1 servers).
- Replacement (upgrade) of RAL firewall.
- Internal
- DNS servers will be rolled out within the Tier1 network.
- Infrastructure
- Testing of power distribution boards in the R89 machine room is being scheduled for some time late July / Early August. The effect of this on our services is being discussed.
Open GGUS Tickets (Snapshot during morning of meeting)
|
Request id
|
Affected vo
|
Status
|
Priority
|
Date of creation
|
Last update
|
Type of problem
|
Subject
|
Scope
|
117683
|
none
|
on hold
|
less urgent
|
18/11/2015
|
09/03/2018
|
Information System
|
CASTOR at RAL not publishing GLUE 2
|
EGI
|
124876
|
ops
|
on hold
|
less urgent
|
07/11/2016
|
13/11/2017
|
Operations
|
[Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk
|
EGI
|
127597
|
cms
|
on hold
|
urgent
|
07/04/2017
|
20/03/2018
|
File Transfer
|
Check networking and xrootd RAL-CERN performance
|
EGI
|
132589
|
lhcb
|
in progress
|
very urgent
|
21/12/2017
|
14/03/2018
|
Local Batch System
|
Killed pilots at RAL
|
WLCG
|
133992
|
atlas
|
in progress
|
less urgent
|
12/03/2018
|
15/03/2018
|
File Transfer
|
RAL-LCG2-ECHO: No such file or directory
|
EGI
|
134030
|
other
|
waiting for reply
|
less urgent
|
14/03/2018
|
20/03/2018
|
Other
|
request to replicate larsoft.opensciencegrid.org cvmfs repository
|
EGI
|
134049
|
cms
|
in progress
|
urgent
|
15/03/2018
|
21/03/2018
|
CMS_AAA WAN Access
|
Low HC xrootd success rates at T1_UK_RAL
|
WLCG
|
134086
|
cms
|
waiting for reply
|
urgent
|
16/03/2018
|
20/03/2018
|
CMS_Central Workflows
|
Failures reading files T1_UK_RAL
|
WLCG
|
134103
|
atlas
|
in progress
|
urgent
|
17/03/2018
|
19/03/2018
|
File Transfer
|
UK RAL-LCG2-ECHO: transfer errors with "the server responded with an error 500 500-Command failed"
|
WLCG
|
134119
|
cms
|
in progress
|
urgent
|
19/03/2018
|
20/03/2018
|
CMS_Central Workflows
|
Issues reading files through xrootd T1_UK_RAL
|
WLCG
|
134136
|
atlas
|
in progress
|
less urgent
|
20/03/2018
|
20/03/2018
|
File Transfer
|
RAL-LCG2: [SE][Ls][SRM_INVALID_PATH] No such file or directory
|
EGI
|
GGUS Tickets Closed Last week
|
Request id
|
Affected vo
|
Status
|
Priority
|
Date of creation
|
Last update
|
Type of problem
|
Subject
|
Scope
|
133619
|
cms
|
solved
|
top priority
|
21/02/2018
|
19/03/2018
|
CMS_Central Workflows
|
T1_UK_RAL Unmerged files missing
|
WLCG
|
133717
|
cms
|
verified
|
less urgent
|
27/02/2018
|
19/03/2018
|
CMS_Data Transfers
|
RAL FTS3 Service: Significant Drop in Transfer Efficiency
|
WLCG
|
133719
|
atlas
|
solved
|
urgent
|
27/02/2018
|
14/03/2018
|
File Transfer
|
Transfers to RAL-LCG2-ECHO failing
|
WLCG
|
133752
|
atlas
|
solved
|
very urgent
|
01/03/2018
|
14/03/2018
|
File Transfer
|
RAL FTS service appears broken
|
WLCG
|
133764
|
snoplus.snolab.ca
|
solved
|
very urgent
|
01/03/2018
|
14/03/2018
|
Information System
|
BDII missing SFU information
|
EGI
|
133997
|
lhcb
|
verified
|
urgent
|
13/03/2018
|
14/03/2018
|
File Access
|
Bad data was encountered
|
WLCG
|
134037
|
lhcb
|
solved
|
very urgent
|
15/03/2018
|
20/03/2018
|
File Access
|
File access problem at RAL-LCG2
|
WLCG
|
134042
|
dteam
|
solved
|
top priority
|
15/03/2018
|
15/03/2018
|
Other
|
Test Ticket.
|
WLCG
|
134095
|
lhcb
|
solved
|
urgent
|
16/03/2018
|
21/03/2018
|
File Access
|
Bad data encountered
|
WLCG
|
134147
|
alice
|
solved
|
urgent
|
20/03/2018
|
20/03/2018
|
Storage Systems
|
RAL tape SE for ALICE failing since March 14
|
WLCG
|
Day
|
ALICE
|
ATLAS
|
ATLAS-ECHO
|
CMS
|
LHCb
|
OPS
|
Comment
|
2018-03-07
|
100
|
100
|
100
|
99
|
100
|
100
|
|
2018-03-08
|
100
|
100
|
100
|
98
|
100
|
100
|
|
2018-03-09
|
100
|
100
|
100
|
98
|
100
|
100
|
|
2018-03-10
|
100
|
100
|
100
|
97
|
100
|
100
|
|
2018-03-11
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2018-03-12
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2018-03-13
|
100
|
98
|
100
|
100
|
100
|
100
|
|
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
Day |
Atlas HC |
CMS HC |
Comment
|
2018/03/14 |
94 |
99 |
|
2018/03/15 |
84 |
100 |
|
2018/03/16 |
100 |
100 |
|
2018/03/17 |
100 |
100 |
|
2018/03/18 |
95 |
100 |
|
2018/03/19 |
93 |
100 |
|
2018/04/20 |
100 |
100 |
|
- CMS will be migrating data from Castor to Echo with this expected to start in a few weeks time.