RAL Tier1 Operations Report for 4th October 2017
Review of Issues during the week 27th September to 4th October 2017.
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- A quiet week operationally. Availabilities (from SAM tests) looking good now that the problem with the LHCb tests is resolved.
Resolved Disk Server Issues
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- GDSS734 (LHCbDst - D1T0) was taken out of production on Thursday (28th Sep) as two disks had failed. It was returned tos ervice the following day after the first disk had been replaced and the RAID rebuilt.
- GDSS772 (LHCbDst - D1T0) crashed during the early hours of Tuesday morning (3rd Oct). It was returned to service during the working day. No fault has been identified on the server.
Current operational status and issues
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- There is a problem on the site firewall which is causing problems for some specific data flows. Discussions have been taking place with the vendor. This is having an effect on our data that flows through the firewall (such as to/from worker nodes).
Ongoing Disk Server Issues
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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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- Re-distribution of data in Echo onto the 2015 capacity hardware is ongoing.
- Services still using the older Quattor/SCDB system for configuration/deployment are being migrated to use Quattor/Aquilon.
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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Pending - but not yet formally announced:
- Upgrade the FTS3 service to a version that will no longer support the SOAP interface. The SOAP interface was disabled on Monday (17th July).
- Re-distribute the data in Echo onto the 2015 capacity hardware. (Ongoing)
Listing by category:
- Castor:
- Move to generic Castor headnodes.
- Echo:
- Re-distribute the data in Echo onto the remaining 2015 capacity hardware.
- Networking
- Extend the number of services on the production network with IPv6 dual stack. (Done for Perfsonar, all squids and the CVMFS Stratum-1 servers).
- Services
- The production FTS will be updated now the requirement to support the deprecated SOAP interface has been removed.
Entries in GOC DB starting since the last report.
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Open GGUS Tickets (Snapshot during morning of meeting)
|
GGUS ID |
Level |
Urgency |
State |
Creation |
Last Update |
VO |
Subject
|
130883
|
Green
|
Urgent
|
In Progress
|
2017-10-02
|
2017-10-03
|
CMS
|
T1_UK_RAL_Disk to T2_US_Florida transfers are failing due to missing file(s)
|
130782
|
Green
|
Top Priority
|
In Progress
|
2017-09-27
|
2017-09-28
|
LHCb
|
Please deploy new version of HEP_OSlibs
|
130467
|
Green
|
Urgent
|
In Progress
|
2017-09-10
|
2017-09-25
|
CMS
|
T1_UK_RAL has SAM3 CE and SRM critical > 2hours
|
130207
|
Yellow
|
Urgent
|
In Progress
|
2017-08-24
|
2017-09-06
|
MICE
|
Timeouts when copying MICE reco data to CASTOR
|
130193
|
Yellow
|
Urgent
|
Waiting for Reply
|
2017-08-23
|
2017-09-29
|
CMS
|
Staging from RAL tape systems
|
128991
|
Green
|
Less Urgent
|
Waiting for Reply
|
2017-06-16
|
2017-09-18
|
Solid
|
solidexperiment.org CASTOR tape support
|
127597
|
Red
|
Urgent
|
On Hold
|
2017-04-07
|
2017-10-03
|
CMS
|
Check networking and xrootd RAL-CERN performance
|
124876
|
Red
|
Less Urgent
|
On Hold
|
2016-11-07
|
2017-01-01
|
OPS
|
[Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk
|
117683
|
Red
|
Less Urgent
|
On Hold
|
2015-11-18
|
2017-07-06
|
|
CASTOR at RAL not publishing GLUE 2.
|
Day |
OPS |
Alice |
Atlas |
CMS |
LHCb |
Atlas Echo |
Comment
|
27/09/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
28/09/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
29/09/17 |
100 |
100 |
100 |
99 |
100 |
100 |
One SRM SAM test failure: User timeout.
|
30/09/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
01/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
02/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
03/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 845); Atlas HC Echo = Atlas Echo (Template 841);CMS HC = CMS HammerCloud
Day |
Atlas HC |
Atlas HC Echo |
CMS HC |
Comment
|
27/09/17 |
97 |
98 |
98 |
|
28/09/17 |
93 |
97 |
100 |
|
29/09/17 |
66 |
70 |
100 |
Suspected Atlas problem as poor results at other Tier1 sites too.
|
30/09/17 |
71 |
77 |
100 |
Suspected Atlas problem as poor results at other Tier1 sites too.
|
01/10/17 |
100 |
100 |
100 |
|
02/10/17 |
99 |
97 |
100 |
|
03/10/17 |
96 |
94 |
100 |
|