Difference between revisions of "Tier1 Operations Report 2018-08-27"
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Revision as of 07:47, 31 August 2018
RAL Tier1 Operations Report for 27th August 2018
Review of Issues during the week 20th August to the 27th August 2018. |
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. |
- GROUP_CMS_LIMIT = 4000
- GROUP_ATLAS_LIMIT = 8000
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 |
---|---|---|---|---|---|---|---|
- | - | - | - | - | - | - | - |
- No ongoing downtime
- No downtime scheduled in the GOCDB for next 2 weeks
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 |
---|---|---|---|---|---|---|---|---|
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 |
---|---|---|---|
2018-08-13 | 0 | 0 | |
2018-08-14 | 0 | 0 | |
2018-08-15 | 0 | 0 | |
2018-08-16 | 0 | 0 | |
2018-08-17 | 76 | 60 | |
2018-08-18 | 100 | 100 | |
2018-08-19 | 100 | 100 | |
2018-08-20 | 100 | 100 |
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
Notes from Meeting. |
- The recent problems with Echo were discussed. A summary is also in the Operations report. Several points:
- Current situation is that we have “production” access running
- Atlas and CMS have upper limits on batch jobs about equal to pledge.
- The additional memory for the Dell storage nodes has arrived. This will be added – at least initially in a rolling upgrade. However, it is expected this may take up to something like 2 weeks. (At which point we expect to be able to give full access to Echo). Discussions on the best way to do the memory upgrades is ongoing.
- Before the problem we had noted that the LHCb files came from Castor in a “bursty” way. It was suggested last week that we limit the FTS to smooth out this burstiness.
- When discussing GGUS tickets: LHCb are seeing some file transfer failures between worker nodes and Castor. This to be escalated.
- The requirement for us to be able to easily contact all users of Echo in the event of a problem was noted.