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Revision as of 11:34, 20 February 2019
RAL Tier1 Operations Report for 18th February 2019
Review of Issues during the week 11th February 2019 to the 18th February 2019.
|
- ARC-CE upgrades are continuing. ARC-CE04 and ARC-CE05 have now been upgraded and have been returned to production status. ARC-03 is currently being drained prior to upgrade and ARC-CE02 and ARC-CE01 will follow after that.
- Echo experienced several thousand slow/blocked/stuck requests early Sunday morning (17/02/19). There were a large number of call-outs for an approximately 1 hour period (starting ~01:30). It is currently suspected that there was internal RAL "network weirdness". The investigation of this issue is continuing.
- Over the weekend CASTOR experienced a disproportionately large number of transfer requests from clients based at CERN. Although CASTOR wobbled a bit it didn't die however performance was impacted. The investigation into this issue is ongoing.
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
|
gdss776
|
LHCb
|
lhcbDst
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d1t0
|
-
|
-
|
-
|
-
|
-
|
-
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Limits on concurrent batch system jobs.
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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?
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Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
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ARC-CE
|
26729
|
Yes
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Outage
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12/2/2019 16:30
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19/2/2019 14:00
|
7 Days
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ARC-CE draining and upgrade to ARC v5.4.3
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Service
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Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
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Reason
|
-
|
-
|
-
|
-
|
-
|
-
|
-
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Advanced warning for other interventions
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The following items are being discussed and are still to be formally scheduled and announced.
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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
|
139723
|
atlas
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waiting for reply
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less urgent
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15/02/2019
|
18/02/2019
|
Data Management - generic
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permissions on scratchdisk
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EGI
|
139672
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other
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in progress
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less urgent
|
13/02/2019
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19/02/2019
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Middleware
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No LIGO pilots running at RAL
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EGI
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139639
|
cms
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waiting for reply
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very urgent
|
12/02/2019
|
18/02/2019
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CMS_AAA WAN Access
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file open error at RAL
|
WLCG
|
139476
|
mice
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in progress
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less urgent
|
01/02/2019
|
06/02/2019
|
Other
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LFC dump
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EGI
|
139306
|
dteam
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in progress
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less urgent
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24/01/2019
|
15/02/2019
|
Monitoring
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perfsonar hosts need updating
|
EGI
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138665
|
mice
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on hold
|
urgent
|
04/12/2018
|
30/01/2019
|
Middleware
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Problem accessing LFC at RAL
|
EGI
|
138500
|
cms
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in progress
|
urgent
|
26/11/2018
|
12/02/2019
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CMS_Data Transfers
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Transfers failing from T2_PL_Swierk to RAL
|
WLCG
|
138361
|
t2k.org
|
in progress
|
less urgent
|
19/11/2018
|
31/01/2019
|
Other
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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
|
139575
|
cms
|
solved
|
urgent
|
07/02/2019
|
13/02/2019
|
CMS_AAA WAN Access
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T1_UK_RAL SAM xrootd reads failing
|
WLCG
|
139477
|
ops
|
verified
|
less urgent
|
01/02/2019
|
13/02/2019
|
Operations
|
[Rod Dashboard] Issue detected : org.nordugrid.ARC-CE-submit-ops@arc-ce04.gridpp.rl.ac.uk
|
EGI
|
139380
|
cms
|
closed
|
urgent
|
29/01/2019
|
14/02/2019
|
CMS_Facilities
|
T1_UK_RAL failing SAM tests inside Singularity
|
WLCG
|
139375
|
atlas
|
closed
|
urgent
|
29/01/2019
|
18/02/2019
|
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
|
139245
|
cms
|
closed
|
urgent
|
21/01/2019
|
18/02/2019
|
CMS_Data Transfers
|
Transfers failing from CNAF_Disk to RAL_Buffer
|
WLCG
|
138891
|
ops
|
verified
|
less urgent
|
17/12/2018
|
13/02/2019
|
Operations
|
[Rod Dashboard] Issue detected : egi.eu.lowAvailability-/RAL-LCG2@RAL-LCG2_Availability
|
EGI
|
|
Day
|
Atlas
|
Atlas-Echo
|
CMS
|
LHCB
|
Alice
|
OPS
|
Comments
|
2019-02-12
|
100
|
100
|
100
|
100
|
96
|
92
|
|
2019-02-13
|
100
|
100
|
100
|
100
|
100
|
52
|
|
2019-02-14
|
100
|
100
|
99
|
100
|
93
|
100
|
|
2019-02-15
|
100
|
100
|
100
|
100
|
91
|
100
|
|
2019-02-16
|
100
|
100
|
97
|
100
|
87
|
100
|
|
2019-02-17
|
100
|
100
|
100
|
100
|
91
|
100
|
|
2019-02-18
|
100
|
100
|
100
|
100
|
84
|
100
|
|
2019-02-19
|
83
|
74
|
79
|
100
|
94
|
100
|
|
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