Difference between revisions of "Tier1 Operations Report 2017-01-11"
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! GGUS ID !! Level !! Urgency !! State !! Creation !! Last Update !! VO !! Subject | ! GGUS ID !! Level !! Urgency !! State !! Creation !! Last Update !! VO !! Subject | ||
+ | |- | ||
+ | | 125856 | ||
+ | | Green | ||
+ | | Top Piority | ||
+ | | In Progress | ||
+ | | 2017-01-06 | ||
+ | | 2016-01-10 | ||
+ | | lhcB | ||
+ | | Permission denied for some files | ||
|- | |- | ||
| 125480 | | 125480 |
Revision as of 12:12, 11 January 2017
RAL Tier1 Operations Report for 11th January 2017
Review of Issues during the week 4th to 11th January 2017. |
Overall it was a fairly quiet holiday time operationally:
- There was a failure of a Power Distribution Unit in a rack in the UPS room in the early hours of Friday 23rd December. Staff attended on site to get the power back. This mainly affected internal services (monitoring etc) - but also the Top BDIIs. This was the second time this PDU had given problems and it was swapped out during Friday morning.
- We have had load issues on the CMS Castor instance throughout the holiday period which has led to repeated SAM test failures.
Resolved Disk Server Issues |
- GDSS671 (AliceDisk - D1T0) failed on Saturday (17th Dec) with a read-only filesystem. Three drives were replaced and the server was returned to service on the 22nd Dec.
Current operational status and issues |
- There is a problem seen by LHCb of a low but persistent rate of failure when copying the results of batch jobs to Castor. There is also a further problem that sometimes occurs when these (failed) writes are attempted to storage at other sites.
Ongoing Disk Server Issues |
- GDSS665 (lhcbRawRdst - D0T1) failed on Saturday 31st Dec). Investigations are ongoing.
Notable Changes made since the last meeting. |
- None
Declared in the GOC DB |
Service | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|
Castor CMS instance | SCHEDULED | OUTAGE | 31/01/2017 10:00 | 31/01/2017 16:00 | 6 hours | Castor 2.1.15 Upgrade. Only affecting CMS instance. (CMS stager component being upgraded). |
Castor GEN instance | SCHEDULED | OUTAGE | 26/01/2017 10:00 | 26/01/2017 16:00 | 6 hours | Castor 2.1.15 Upgrade. Only affecting GEN instance. (GEN stager component being upgraded). |
Castor Atlas instance | SCHEDULED | OUTAGE | 24/01/2017 10:00 | 24/01/2017 16:00 | 6 hours | Castor 2.1.15 Upgrade. Only affecting Atlas instance. (Atlas stager component being upgraded). |
Castor LHCb instance | SCHEDULED | OUTAGE | 17/01/2017 10:00 | 17/01/2017 16:00 | 6 hours | Castor 2.1.15 Upgrade. Only affecting LHCb instance. (LHCb stager component being upgraded). |
Advanced warning for other interventions |
The following items are being discussed and are still to be formally scheduled and announced. |
Pending - but not yet formally announced:
- Merge AtlasScratchDisk into larger Atlas disk pool.
Listing by category:
- Castor:
- Update to Castor version 2.1.15. Dates announced via GOC DB for early 2017.
- Update SRMs to new version, including updating to SL6. This will be done after the Castor 2.1.15 update.
- Fabric
- Firmware updates on older disk servers.
Entries in GOC DB starting since the last report. |
Service | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|
All Castor storage (All SRMs) | SCHEDULED | OUTAGE | 10/01/2017 10:00 | 10/01/2017 14:03 | 4 hours and 3 minutes | Castor 2.1.15 Upgrade. Upgrade of Nameserver component. All instances affected. |
gridftp.echo.stfc.ac.uk, s3.echo.stfc.ac.uk, s3.echo.stfc.ac.uk, xrootd.echo.stfc.ac.uk, | SCHEDULED | OUTAGE | 05/01/2017 10:00 | 06/01/2017 15:00 | 1 day, 5 hours | ECHO Re-install |
All Castor storage (All SRMs) | SCHEDULED | OUTAGE | 05/01/2017 09:30 | 05/01/2017 11:54 | 2 hours and 24 minutes | Outage of Castor Storage System for patching |
Open GGUS Tickets (Snapshot during morning of meeting) |
GGUS ID | Level | Urgency | State | Creation | Last Update | VO | Subject |
---|---|---|---|---|---|---|---|
125856 | Green | Top Piority | In Progress | 2017-01-06 | 2016-01-10 | lhcB | Permission denied for some files |
125480 | Green | Less Urgent | On Hold | 2016-12-09 | 2016-12-21 | total Physical and Logical CPUs values | |
125157 | Green | Less Urgent | In Progress | 2016-11-24 | 2017-01-03 | Creation of a repository within the EGI CVMFS infrastructure | |
124876 | Yellow | 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 | 2016-12-07 | CASTOR at RAL not publishing GLUE 2. We looked at this as planned in December (report). |
Availability Report |
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 808); CMS HC = CMS HammerCloud
Day | OPS | Alice | Atlas | CMS | LHCb | Atlas HC | CMS HC | Comment |
---|---|---|---|---|---|---|---|---|
04/01/17 | 100 | 72 | 100 | 93 | 100 | N/A | 100 | Alice: Internal Alice problem; CMS: SRM test failures - User timeout |
05/01/17 | 89.6 | 35 | 90 | 82 | 90 | N/A | 100 | Castor outage for patching. ; Alice: Internal Alice problem.; CMS: SRM test failures - User timeout |
06/01/17 | 100 | 100 | 100 | 54 | 100 | N/A | 100 | SRM test failures - User timeout |
07/01/17 | 100 | 100 | 100 | 95 | 100 | N/A | 100 | SRM test failures - User timeout |
08/01/17 | 100 | 100 | 100 | 84 | 100 | N/A | 100 | SRM test failures - User timeout |
09/01/17 | 100 | 100 | 100 | 95 | 100 | N/A | 100 | SRM test failures - User timeout |
10/01/17 | 82.3 | 100 | 83 | 74 | 83 | N/A | N/A | Castor upgrade (nameserver to 2.1.15). CMS: SRM test failures - User timeout |
Notes from Meeting. |
- It was reported that CMS are seeing poor CMS efficiencies across all Tier1s.
- We had to connect to Vidyo using the phone link. Will try and get Vidyo client fixed in our meeting room.