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 |
|---|---|---|---|---|---|---|---|---|
| 136798 | lhcb | in progress | very urgent | 21/08/2018 | 21/08/2018 | File Transfer | the Request Handler does not allow forcing of the request UUID | WLCG |
| 136757 | mice | in progress | less urgent | 17/08/2018 | 21/08/2018 | Other | Missing lsc files for mice VO on lfc.gridpp.rl.ac.uk ? | EGI |
| 136701 | lhcb | in progress | very urgent | 14/08/2018 | 21/08/2018 | File Transfer | background of transfer errors | WLCG |
| 136366 | mice | in progress | less urgent | 25/07/2018 | 20/08/2018 | Local Batch System | Remove MICE Queue from RAL T1 Batch | EGI |
| 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 | 21/08/2018 | 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 |
|---|---|---|---|---|---|---|---|---|
| 136655 | lhcb | verified | less urgent | 10/08/2018 | 15/08/2018 | File Access | Missing File At RAL | WLCG |
| 136460 | cms | closed | urgent | 30/07/2018 | 15/08/2018 | CMS_Data Transfers | Transfers failing to RAL_Buffer | WLCG |
| 136427 | atlas | closed | urgent | 28/07/2018 | 13/08/2018 | File Transfer | UK RAL-LCG2: Transfer errors as destination | WLCG |
| 136408 | cms | closed | urgent | 27/07/2018 | 15/08/2018 | CMS_Data Transfers | missing files at RAL | WLCG |
|
Availability Report |
| Target Availability for each site is 97.0% | Red <90% | Orange <97% |
| Day | Atlas | Atlas-Echo | CMS | LHCB | Alice | OPS | Comments |
|---|---|---|---|---|---|---|---|
| 2018-08-13 | 100 | 100 | 0 | 100 | 100 | 100 | |
| 2018-08-14 | 100 | 100 | 0 | 100 | 100 | 100 | |
| 2018-08-15 | 100 | 100 | 0 | 100 | 100 | 100 | |
| 2018-08-16 | 100 | 100 | 0 | 100 | 100 | 100 | |
| 2018-08-17 | 100 | 100 | 60 | 100 | 100 | 100 | |
| 2018-08-18 | 100 | 100 | 100 | 100 | 100 | 100 | |
| 2018-08-19 | 100 | 100 | 100 | 100 | 100 | 100 | |
| 2018-08-20 | 100 | 100 | 100 | 100 | 100 | 100 |
| 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. |
