Tier1 Operations Report 2018-08-20
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RAL Tier1 Operations Report for 20th August 2018
Review of Issues during the week 13th August to the 20th August 2018. |
- The upgrade of Echo was completed successfully on Thursday (16/8/18), with a greatly reduced memory usage. The cluster was allowed to recover overnight. Everything appeared to be working well on the Friday (17/8/18), and there is currently no evidence of data loss. We therefore ended the downtime at Friday 12:00 UTC (17/8/18). As a precaution for the weekend, we limited the ATLAS (and CMS), quota on our batch farm to 50% of its nominal amount. Assuming we encounter no problems we intend to lift this on Monday (20/8/18).
Current operational status and issues |
- The new siny O2 SIM for the SMS service has been delivered and installed
Resolved Castor Disk Server Issues |
Machine | VO | DiskPool | dxtx | Comments |
---|---|---|---|---|
- | - | - | - | - |
Ongoing Castor Disk Server Issues |
Machine | VO | DiskPool | dxtx | Comments |
---|---|---|---|---|
gdss747 | Atlas | atlasStripInput | d1t0 | Currently in intervention. |
Limits on concurrent batch system jobs. |
- CMS Multicore 550
Notable Changes made since the last meeting. |
- None.
Entries in GOC DB starting since the last report. |
Service | ID | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|---|
- | - | - | - | - | - | - | - |
Declared in the GOC DB |
Service | ID | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|---|
Echo | 25892 | SCHEDULED OUTAGE | OUTAGE | 23/08/2018 09:00 | 23/08/2018 17:00 | 1 days | ECHO down for memory upgrade. |
Advanced warning for other interventions |
The following items are being discussed and are still to be formally scheduled and announced. |
Listing by category:
- Castor:
- Update systems to use SL7 and configured by Quattor/Aquilon. (Tape servers done)
- Move to generic Castor headnodes.
- Internal
- 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 |
---|---|---|---|---|---|---|---|---|
136701 | lhcb | in progress | very urgent | 14/08/2018 | 14/08/2018 | File Transfer | background of transfer errors | WLCG |
136665 | cms | in progress | urgent | 11/08/2018 | 14/08/2018 | CMS_SAM tests | T1_UK_RAL is down > 12h | WLCG |
136563 | cms | in progress | urgent | 06/08/2018 | 06/08/2018 | CMS_Data Transfers | Possibly corrupted files at RAL | WLCG |
136366 | mice | waiting for reply | less urgent | 25/07/2018 | 08/08/2018 | Local Batch System | Remove MICE Queue from RAL T1 Batch | EGI |
136358 | cms | on hold | urgent | 25/07/2018 | 13/08/2018 | CMS_Facilities | T1_UK_RAL WN-xrootd-access failure | WLCG |
136199 | lhcb | in progress | very urgent | 18/07/2018 | 07/08/2018 | File Transfer | Lots of submitted transfers on RAL FTS | WLCG |
136028 | cms | in progress | top priority | 10/07/2018 | 13/08/2018 | CMS_AAA WAN Access | Issues reading files at T1_UK_RAL_Disk | WLCG |
124876 | ops | in progress | less urgent | 07/11/2016 | 23/07/2018 | Operations | [Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk | EGI |
GGUS Tickets Closed Last week |
Request id | Affected vo | Status | Priority | Date of creation | Last update | Type of problem | Subject | Scope |
---|---|---|---|---|---|---|---|---|
136537 | ops | verified | less urgent | 03/08/2018 | 06/08/2018 | Operations | [Rod Dashboard] Issue detected : org.bdii.GLUE2-Validate@site-bdii.gridpp.rl.ac.uk | EGI |
136359 | none | closed | top priority | 25/07/2018 | 08/08/2018 | Other | This TEST ALARM has been raised for testing GGUS alarm work flow after a new GGUS release. | WLCG |
136270 | cms | closed | urgent | 22/07/2018 | 07/08/2018 | CMS_Facilities | T1_UK_RAL xrootd access failures | WLCG |
134685 | dteam | solved | less urgent | 23/04/2018 | 08/08/2018 | Middleware | please upgrade perfsonar host(s) at RAL-LCG2 to CentOS7 | EGI |
Availability Report |
Target Availability for each site is 97.0% | Red <90% | Orange <97% |
Day | Atlas | Atlas-Echo | CMS | LHCB | Alice | OPS | Comments |
---|---|---|---|---|---|---|---|
2018-08-06 | 100 | 100 | 99 | 100 | 100 | 100 | |
2018-08-07 | 100 | 100 | 94 | 100 | 100 | 100 | |
2018-08-08 | 100 | 100 | 89 | 100 | 100 | 100 | |
2018-08-09 | 100 | 100 | 93 | 100 | 100 | 100 | |
2018-08-10 | 100 | 100 | 95 | 100 | 100 | 100 | |
2018-08-11 | 100 | 100 | 31 | 100 | 100 | 100 | Caused by Echo outage |
2018-08-12 | 100 | 100 | 7 | 100 | 100 | 100 | Caused by Echo outage |
2018-08-13 | 100 | 100 | 0 | 100 | 100 | 100 | Caused by Echo outage |
Hammercloud Test Report |
Target Availability for each site is 97.0% | Red <90% | Orange <97% |
Day | Atlas HC | CMS HC | Comment |
---|---|---|---|
2018-08-06 | 100 | 100 | |
2018-08-07 | 100 | 99 | |
2018-08-08 | 91 | 98 | |
2018-08-09 | 100 | 93 | |
2018-08-10 | 98 | 87 | |
2018-08-11 | 67 | 91 | |
2018-08-12 | 100 | 97 | |
2018-08-13 | 0 | 100 |
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
Notes from Meeting. |