RAL Tier1 Operations Report for 11th February 2019
| Review of Issues during the week 28th January 2019 to the 5th February 2019.
|
- Our tape robot experienced a 2 hour unscheduled outage on Wednesday. The issue was as the result of a failed network switch (internal to the robot), which was resolved after diligent use of the power switch.
- CASTOR team are moving Alice to the new xrootd redirector setup.
- Garbage collection issues with the new wlcgTape that were, in part, responsible for issues experienced by NA62 last week have now been understood and subsequently resolved.
- The ARC-CE’s are intermittently reporting ‘unknown’ for SAM test results. We believe we understand the cause of this and upgrading to the current release version will resolve this issue.
| Current operational status and issues
|
| Resolved Castor Disk Server Issues
|
| Machine
|
VO
|
DiskPool
|
dxtx
|
Comments
|
| gdss811
|
LHCb
|
lhcbDst
|
d1t0
|
-
|
| Ongoing Castor Disk Server Issues
|
| Machine
|
VO
|
DiskPool
|
dxtx
|
Comments
|
| -
|
-
|
-
|
-
|
-
|
| Limits on concurrent batch system jobs.
|
| Notable Changes made since the last meeting.
|
| Entries in GOC DB starting since the last report.
|
| Service
|
ID
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
| ARC-CE
|
26729
|
Yes
|
Outage
|
12/2/2019 16:30
|
19/2/2019 14:00
|
7 Days
|
ARC-CE draining and upgrade to ARC v5.4.3
|
| Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
| -
|
-
|
-
|
-
|
-
|
-
|
-
|
| Advanced warning for other interventions
|
| The following items are being discussed and are still to be formally scheduled and announced.
|
Listing by category:
- DNS servers will be rolled out within the Tier1 network.
| Open
GGUS Tickets (Snapshot taken during morning of the meeting).
|
| Request id
|
Affected vo
|
Status
|
Priority
|
Date of creation
|
Last update
|
Type of problem
|
Subject
|
Scope
|
| 139639
|
cms
|
in progress
|
very urgent
|
12/02/2019
|
12/02/2019
|
CMS_AAA WAN Access
|
file open error at RAL
|
WLCG
|
| 139575
|
cms
|
in progress
|
urgent
|
07/02/2019
|
08/02/2019
|
CMS_AAA WAN Access
|
T1_UK_RAL SAM xrootd reads failing
|
WLCG
|
| 139476
|
mice
|
in progress
|
less urgent
|
01/02/2019
|
06/02/2019
|
Other
|
LFC dump
|
EGI
|
| 139306
|
dteam
|
in progress
|
less urgent
|
24/01/2019
|
29/01/2019
|
Monitoring
|
perfsonar hosts need updating
|
EGI
|
| 138665
|
mice
|
on hold
|
urgent
|
04/12/2018
|
30/01/2019
|
Middleware
|
Problem accessing LFC at RAL
|
EGI
|
| 138500
|
cms
|
in progress
|
urgent
|
26/11/2018
|
12/02/2019
|
CMS_Data Transfers
|
Transfers failing from T2_PL_Swierk to RAL
|
WLCG
|
| 138361
|
t2k.org
|
in progress
|
less urgent
|
19/11/2018
|
31/01/2019
|
Other
|
RAL-LCG2: t2k.org LFC to DFC transition
|
EGI
|
| 138033
|
atlas
|
in progress
|
urgent
|
01/11/2018
|
31/01/2019
|
Other
|
singularity jobs failing at RAL
|
EGI
|
| 137897
|
enmr.eu
|
on hold
|
urgent
|
23/10/2018
|
31/01/2019
|
Workload Management
|
enmr.eu accounting at RAL
|
EGI
|
| GGUS Tickets Closed Last week
|
| Request id
|
Affected vo
|
Status
|
Priority
|
Date of creation
|
Last update
|
Type of problem
|
Subject
|
Scope
|
| 139538
|
cms
|
solved
|
urgent
|
05/02/2019
|
05/02/2019
|
CMS_Data Transfers
|
Some transfers failing to RAL - SRM_AUTHORIZATION_FAILURE
|
WLCG
|
| 139414
|
lhcb
|
verified
|
very urgent
|
30/01/2019
|
05/02/2019
|
Other
|
Jobs Failed with Segmentation fault at RAL-LCG2
|
WLCG
|
| 139405
|
ops
|
verified
|
less urgent
|
30/01/2019
|
05/02/2019
|
Operations
|
[Rod Dashboard] Issue detected : org.bdii.GLUE2-Validate@site-bdii.gridpp.rl.ac.uk
|
EGI
|
| 139375
|
atlas
|
solved
|
urgent
|
29/01/2019
|
04/02/2019
|
Other
|
RAL-LCG2 transfers fail with "the server responded with an error 500"
|
WLCG
|
| 139328
|
cms
|
closed
|
urgent
|
25/01/2019
|
12/02/2019
|
CMS_Facilities
|
T1_UK_RAL SRM tests failing
|
WLCG
|
| 139312
|
cms
|
closed
|
urgent
|
25/01/2019
|
12/02/2019
|
CMS_Data Transfers
|
Corrupted files at RAL_Buffer?
|
WLCG
|
| 139302
|
atlas
|
closed
|
urgent
|
24/01/2019
|
08/02/2019
|
File Transfer
|
RAL: transfer issues between BNL and UK due to a wrong DNS alias?
|
WLCG
|
| 139245
|
cms
|
solved
|
urgent
|
21/01/2019
|
04/02/2019
|
CMS_Data Transfers
|
Transfers failing from CNAF_Disk to RAL_Buffer
|
WLCG
|
| 139210
|
cms
|
closed
|
urgent
|
17/01/2019
|
08/02/2019
|
CMS_Data Transfers
|
Transfers failing from CSCS to UCL - issue with RAL FTS
|
WLCG
|
| 139209
|
cms
|
closed
|
urgent
|
17/01/2019
|
08/02/2019
|
CMS_AAA WAN Access
|
file open error at RAL
|
WLCG
|
| Day
|
Atlas
|
Atlas-Echo
|
CMS
|
LHCB
|
Alice
|
OPS
|
Comments
|
| 2019-02-05
|
100
|
100
|
100
|
100
|
100
|
100
|
|
| 2019-02-06
|
100
|
100
|
100
|
100
|
100
|
100
|
|
| 2019-02-07
|
100
|
100
|
100
|
100
|
100
|
100
|
|
| 2019-02-08
|
100
|
100
|
100
|
100
|
100
|
100
|
|
| 2019-02-09
|
100
|
100
|
100
|
100
|
100
|
100
|
|
| 2019-02-10
|
85
|
85
|
100
|
100
|
100
|
100
|
|
| 2019-02-11
|
29
|
29
|
23
|
100
|
98
|
100
|
|
| 2019-02-12
|
100
|
100
|
100
|
100
|
96
|
92
|
|
| 2019-02-13
|
100
|
100
|
100
|
100
|
100
|
52
|
|
| Target Availability for each site is 97.0%
|
Red <90%
|
Orange <97%
|
| Day |
Atlas HC |
CMS HC |
Comment
|
| 2019-01-23 |
100 |
98 |
|
| 2019-01-24 |
100 |
98 |
|
| 2019-01-25 |
100 |
98 |
|
| 2019-01-26 |
100 |
91 |
|
| 2019-01-27 |
100 |
97 |
|
| 2019-01-28 |
100 |
93 |
|
| 2019-01-29 |
100 |
98 |
|
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
|
