RAL Tier1 Operations Report for 22nd April 2019
Review of Issues during the week 15th April 2019 to the 22nd April 2019.
|
- All pleasantly peaceful and quiet over the Easter holidays.
- CMS efficiency issue are still ongoing as is the investigation into same.
- LHCb are now fully ECHO'ed up. On-Call have been monitoring over the Easter period and so far all appears good.
Current operational status and issues
|
Resolved Castor Disk Server Issues
|
Machine
|
VO
|
DiskPool
|
dxtx
|
Comments
|
-
|
-
|
-
|
-
|
-
|
Ongoing Castor Disk Server Issues
|
Machine
|
VO
|
DiskPool
|
dxtx
|
Comments
|
-
|
-
|
-
|
-
|
-
|
Limits on concurrent batch system jobs.
|
Notable Changes made since the last meeting.
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Entries in GOC DB starting since the last report.
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Service
|
ID
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
Service
|
ID
|
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
|
Solution
|
140773
|
lhcb
|
in progress
|
top priority
|
18/04/2019
|
18/04/2019
|
Storage Systems
|
Removal of Echo unbearably slow
|
WLCG
|
|
140660
|
cms
|
in progress
|
urgent
|
09/04/2019
|
18/04/2019
|
CMS_Central Workflows
|
FIle read issues for Workflows where data is located at T1_UK_RAL
|
WLCG
|
|
140447
|
dteam
|
on hold
|
less urgent
|
27/03/2019
|
16/04/2019
|
Network problem
|
packet loss outbound from RAL-LCG2 over IPv6
|
EGI
|
|
140220
|
mice
|
in progress
|
less urgent
|
15/03/2019
|
08/04/2019
|
Other
|
mice LFC to DFC transition
|
EGI
|
|
139672
|
other
|
in progress
|
urgent
|
13/02/2019
|
08/04/2019
|
Middleware
|
No LIGO pilots running at RAL
|
EGI
|
|
GGUS Tickets Closed Last week
|
Request id
|
Affected vo
|
Status
|
Priority
|
Date of creation
|
Last update
|
Type of problem
|
Subject
|
Scope
|
Solution
|
140758
|
lhcb
|
solved
|
urgent
|
17/04/2019
|
17/04/2019
|
File Access
|
lhcbUser svcClass not working as it should ?
|
WLCG
|
Should be fixed now.
|
140725
|
cms
|
solved
|
urgent
|
15/04/2019
|
16/04/2019
|
CMS_Facilities
|
T1_UK_RAL intermittent xrootd relative failures
|
WLCG
|
reason is clear, more additional hardware is on the way.
|
140599
|
lhcb
|
verified
|
very urgent
|
05/04/2019
|
18/04/2019
|
File Access
|
Data access problem at RAL-LCG2
|
WLCG
|
Files have been transferred out of this diskserver into ECHO
|
140589
|
lhcb
|
verified
|
very urgent
|
04/04/2019
|
15/04/2019
|
Local Batch System
|
Pilots killed at RAL-LCG2
|
WLCG
|
As per Raja's comments, this original issue has now been resolved so ticket is being closed.
|
140511
|
cms
|
closed
|
urgent
|
01/04/2019
|
16/04/2019
|
CMS_Facilities
|
T1_UK_RAL SAM job run out of date
|
WLCG
|
Issue is related to SAM dashboard.
|
140493
|
atlas
|
closed
|
less urgent
|
29/03/2019
|
15/04/2019
|
File Transfer
|
UK RAL-LCG2 MCTAPE: transfer error with" Connection timed out,"
|
WLCG
|
Hi xin wang,
This looks more like a problem with the source site, LRZ-LMU_DATADISK. The error message refers to the source URL at httpg://lcg-lrz-srm.grid.lrz.de:8443/srm/managerv2. Also, if I try to download from the source path, it gets stuck:
gfal-copy srm://lcg-lrz-srm.grid.lrz.de:8443/srm/managerv2?SFN=/pnfs/lrz-muenchen.de/data/atlas/dq2/atlasdatadisk/rucio/mc16_13TeV/35/cb/HITS.17137527._002530.pool.root.1 .
Can you assign a new ticket for LRZ-LMU?
I hope it's OK for me to mark this ticket "solved". Please reopen if I was mistaken.
Thanks,
Tim.
|
140467
|
cms
|
closed
|
urgent
|
28/03/2019
|
15/04/2019
|
CMS_Data Transfers
|
Stuck file at RAL
|
WLCG
|
Stuck file had missing stripes and a zeroth stripe with zero size. This was deleted by hand and the errors stopped appearing.
|
138665
|
mice
|
closed
|
urgent
|
04/12/2018
|
23/04/2019
|
Middleware
|
Problem accessing LFC at RAL
|
EGI
|
As I understand it this ticket is has been superseded by https://ggus.eu/?mode=ticket_info&ticket_id=140220. As such I'm closing this ticket. Please feel free to reopen this ticket if you disagree.
|
138033
|
atlas
|
solved
|
urgent
|
01/11/2018
|
18/04/2019
|
Other
|
singularity jobs failing at RAL
|
EGI
|
Hi James,
looks good. The test I sent succeeded. Closing ticket.
cheers
alessandra
|
|
Day
|
Atlas
|
Atlas-Echo
|
CMS
|
LHCB
|
Alice
|
OPS
|
Comments
|
2019-04-15
|
100
|
100
|
99
|
100
|
100
|
100
|
|
2019-04-16
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-17
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-18
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-19
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-20
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-21
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-22
|
100
|
100
|
100
|
100
|
100
|
100
|
|
2019-04-23
|
100
|
100
|
98
|
97
|
83
|
100
|
|
2019-04-24
|
100
|
100
|
100
|
100
|
100
|
100
|
|
Target Availability for each site is 97.0%
|
Red <90%
|
Orange <97%
|
Day |
Atlas HC |
CMS HC |
Comment
|
2019-04-08 |
100 |
100 |
|
2019-04-09 |
100 |
100 |
|
2019-04-10 |
73 |
71 |
|
2019-04-11 |
87 |
n/a |
|
2019-04-12 |
100 |
n/a |
|
2019-04-13 |
100 |
100 |
|
2019-04-14 |
100 |
100 |
|
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud