|
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Line 108: |
Line 108: |
| |} | | |} |
| <!-- ******* still to be formally scheduled and/or announced ******* -----> | | <!-- ******* still to be formally scheduled and/or announced ******* -----> |
− | * Turn off CREAM CEs (planned for 5th May).
| |
| * Turn off ARC-CE05. This will leave four ARC CEs (as planned.) This fifth was set-up to temporarily workround a specific problem and is no longer required. | | * Turn off ARC-CE05. This will leave four ARC CEs (as planned.) This fifth was set-up to temporarily workround a specific problem and is no longer required. |
| '''Listing by category:''' | | '''Listing by category:''' |
Revision as of 10:10, 6 May 2015
RAL Tier1 Operations Report for 6th May2015
Review of Issues during the three weeks 15th April to 6th May 2015.
|
- On Wednesday 8th April a minor network change triggered a wider problem across the Tier1 network and caused significant disruption of services. The planned Castor upgrade for that day had to be abandoned. A post mortem is being generated for this incident.
Resolved Disk Server Issues
|
- GDSS633 (AtlasTape - D-T1) failed on Sunday 3rd May. It was returned to service late evening the following day (Bank Holiday Monday 4th May).
Current operational status and issues
|
- We are running with a single router connecting the Tier1 network to the site network, rather than a resilient pair.
- The bypass link from the Tier1 to the UKLR has been restored to 2 x 10Gb/s but traffic going outbound is not being correctly balanced across the two links. This is still under investigation.
- Since 27th March there has been sporadic low level packet loss on the OPN primary link to CERN. This is being investigated.
Ongoing Disk Server Issues
|
Notable Changes made this last week.
|
- gfal2 and davix rpms are in the process of being updated across the worker nodes.
- Yesterday (5th May) the two remaining CREAM CEs were put into draining mode as the next step in their decommissioning.
Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
lcgfts3.gridpp.rl.ac.uk,
|
SCHEDULED
|
WARNING
|
07/05/2015 11:00
|
07/05/2015 12:00
|
1 hour
|
Update of Production FTS3 Server to version 3.2.33
|
cream-ce01.gridpp.rl.ac.uk, cream-ce02.gridpp.rl.ac.uk.
|
SCHEDULED
|
OUTAGE
|
05/05/2015 12:00
|
02/06/2015 12:00
|
28 days
|
Decommissioning of CREAM CEs (cream-ce01.gridpp.rl.ac.uk, cream-ce02.gridpp.rl.ac.uk).
|
Advanced warning for other interventions
|
The following items are being discussed and are still to be formally scheduled and announced.
|
- Turn off ARC-CE05. This will leave four ARC CEs (as planned.) This fifth was set-up to temporarily workround a specific problem and is no longer required.
Listing by category:
- Databases:
- Switch LFC/3D to new Database Infrastructure.
- Update to Oracle 11.2.0.4. This will affect all services that use Oracle databases (Castor, LFC and Atlas Frontier)
- Castor:
- Update SRMs to new version (includes updating to SL6).
- Fix discrepancies found in some of the Castor database tables and columns. (The issue has no operational impact.)
- Update the Oracle databses behind Castor to version 11.2.0.4. Will require some downtimes.
- Networking:
- Separate some non-Tier1 services off our network so as to be able to more easily investigate the router problems.
- Resolve problems with primary Tier1 Router
- Enable the RIP protocol for updating routing tables on the Tier1 routers. (Install patch to Router software).
- Increase bandwidth of the link from the Tier1 into the RAL internal site network to 40Gbit.
- Make routing changes to allow the removal of the UKLight Router.
- Fabric
- Firmware updates on remaining EMC disk arrays (Castor, FTS/LFC)
Entries in GOC DB starting since the last report.
|
Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
cream-ce01.gridpp.rl.ac.uk, cream-ce02.gridpp.rl.ac.uk
|
SCHEDULED
|
OUTAGE
|
05/05/2015 12:00
|
02/06/2015 12:00
|
28 days,
|
Decommissioning of CREAM CEs (cream-ce01.gridpp.rl.ac.uk, cream-ce02.gridpp.rl.ac.uk).
|
lcgft-atlas.gridpp.rl.ac.uk,
|
SCHEDULED
|
WARNING
|
05/05/2015 09:00
|
05/05/2015 11:55
|
2 hours and 55 minutes
|
Regular patching of Oracle Database behind the Atlas Frontier service.
|
lfc.gridpp.rl.ac.uk
|
SCHEDULED
|
OUTAGE
|
28/04/2015 09:00
|
28/04/2015 14:03
|
5 hours and 3 minutes
|
Update of Oracle Database behind the LFC service. There will be an initial outage of up to 90 minutes. Following this the LFC will be available READ-ONLY for some (up to five) hours. At the end of the upgrade the LFC will again be unavailable for a period of up to 90 minutes.
|
All Castor (all SRM endpoints)
|
SCHEDULED
|
OUTAGE
|
15/04/2015 09:30
|
15/04/2015 11:57
|
2 hours and 27 minutes
|
Castor upgrade to 2.1.14-15 as this was postponed last week.
|
Open GGUS Tickets (Snapshot during morning of meeting)
|
GGUS ID |
Level |
Urgency |
State |
Creation |
Last Update |
VO |
Subject
|
113010
|
Green
|
Very Urgent
|
Waiting Reply
|
2015-04-13
|
2015-04-14
|
SNO+
|
Job statuses reported by WMS not updating
|
112977
|
Green
|
Very Urgent
|
In Progress
|
2015-04-10
|
2015-04-13
|
CMS
|
High failure rate for RAL!
|
112896
|
Green
|
Urgent
|
In Progress
|
2015-04-09
|
2015-04-09
|
CMS
|
Please check this dataset
|
112866
|
Green
|
Less Urgent
|
In Progress
|
2015-04-02
|
2015-04-07
|
CMS
|
Many jobs are failed/aborted at T1_UK_RAL
|
112819
|
Green
|
Less Urgent
|
In Progress
|
2015-04-02
|
2015-04-07
|
SNO+
|
ArcSync hanging
|
112721
|
Green
|
Less Urgent
|
waiting for reply
|
2015-03-28
|
2015-04-06
|
Atlas
|
RAL-LCG2: SOURCE Failed to get source file size
|
112713
|
Green
|
Urgent
|
In Progress
|
2015-03-27
|
2015-03-31
|
CMS
|
Please clean up unmerged area - RAL
|
111699
|
Yellow
|
Less Urgent
|
In Progress
|
2015-02-10
|
2015-03-23
|
Atlas
|
gLExec hammercloud jobs keep failing at RAL-LCG2 & RALPP
|
109694
|
Red
|
Urgent
|
In Progress
|
2014-11-03
|
2015-03-31
|
SNO+
|
gfal-copy failing for files at RAL
|
108944
|
Red
|
Less Urgent
|
In Progress
|
2014-10-01
|
2015-03-30
|
CMS
|
AAA access test failing at T1_UK_RAL
|
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 508); CMS HC = CMS HammerCloud
Day |
OPS |
Alice |
Atlas |
CMS |
LHCb |
Atlas HC |
CMS HC |
Comment
|
15/04/15 |
97.9 |
100 |
90.0 |
90.0 |
90.0 |
100 |
98 |
Castor 2.1.14-15 upgrade.
|
16/04/15 |
100 |
100 |
94.0 |
100 |
100 |
100 |
99 |
Couple of SRM Test errors around half an hour apart.
|
17/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
|
18/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
|
19/04/15 |
100 |
100 |
100 |
100 |
100 |
98 |
100 |
|
20/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
21/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
22/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
23/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
24/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
25/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
26/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
n/a |
|
27/04/15 |
100 |
100 |
100 |
99.0 |
99.0 |
100 |
100 |
Argus problem - job sumbissions failed for a while.
|
28/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
|
29/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
|
30/04/15 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
|
01/05/15 |
100 |
100 |
100 |
100 |
96.0 |
95 |
100 |
Single SRM test failure. Error listing file.
|
02/05/15 |
100 |
100 |
100 |
100 |
100 |
96 |
100 |
|
03/05/15 |
100 |
100 |
100 |
100 |
100 |
83 |
100 |
|
04/05/15 |
100 |
100 |
100 |
100 |
100 |
90 |
99 |
|
05/05/15 |
100 |
100 |
100 |
52.0 |
100 |
93 |
100 |
CMS CE SAM tests are failed at many sites due to an expired proxy.
|