Difference between revisions of "Tier1 Operations Report 2018-10-08"
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Revision as of 08:30, 9 October 2018
RAL Tier1 Operations Report for 8th October 2018
Review of Issues during the week 2nd October 2018 to the 8th October 2018. |
- LFC:
- The LFC is STILL running - hurrah! We now believe that this problem has been correctly resolved.
- FTS / gfal version issues:
- The newest version of gfal made changes to the way certificate are processed. This broke transfers to a significant number of sites. Tier-1 was ticketed to role back the FTS service.
- New Castor tape service:
- Teir-1 have successfully run ATLAS performance tape test. Excellent results at 2GB/s. This was reported at the WLCG Archival Storage WG[1].
- We were second only to IN2P3 who got 50% better throughput but had dedicated 36 T10KD drives compared to our 8 T10KD drives.
- As we migrate more VOs to the new Castor instance we will have more drives available (up to 22) and this should mean we are likely to double our overall throughput.
Current operational status and issues |
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. |
gdss753 | Atlas | atlasStripInput | d1t0 | Currently in intervention. |
gdss738 | LHCb | LHCb_FAILOVER,LHCb-Disk | d1t0 | Currently in intervention. |
Limits on concurrent batch system jobs. |
- None currently in-force.
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:
- Disk only storage will end in Castor. A new single tape-only Castor instance (called WLCGTape) is being tested. This is using generic Catsor headnodes on SL7 configured by Quattor/Aquilon with a slightly newer Castor version.
- Update systems to use SL7 and configured by Quattor/Aquilon. (Tape servers done)
- 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 |
---|---|---|---|---|---|---|---|---|
137650 | cms | in progress | urgent | 09/10/2018 | 09/10/2018 | CMS_AAA WAN Access | Low HC xrootd success rates at T1_UK_RAL | WLCG |
137634 | cms | in progress | urgent | 08/10/2018 | 09/10/2018 | CMS_Data Transfers | Transfers failing from T1_UK_RAL_Disk to METU | WLCG |
137391 | atlas | in progress | urgent | 25/09/2018 | 05/10/2018 | Network problem | UK RAL-LCG2 transfer errors with Communication error on send | WLCG |
137195 | ops | in progress | less urgent | 14/09/2018 | 05/10/2018 | Operations | [Rod Dashboard] Issues detected at RAL-LCG2 | EGI |
137153 | t2k.org | in progress | urgent | 12/09/2018 | 25/09/2018 | Data Management - generic | LFC entry has file size 0, preventsw registering of additional replicas | EGI |
136701 | lhcb | waiting for reply | very urgent | 14/08/2018 | 03/10/2018 | File Transfer | background of transfer errors | WLCG |
136199 | lhcb | on hold | very urgent | 18/07/2018 | 01/10/2018 | File Transfer | Lots of submitted transfers on RAL FTS | WLCG |
124876 | ops | in progress | less urgent | 07/11/2016 | 08/10/2018 | 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 |
---|---|---|---|---|---|---|---|---|
137619 | cms | solved | urgent | 07/10/2018 | 08/10/2018 | CMS_AAA WAN Access | T1_UK_RAL xrootd read failures | WLCG |
137565 | atlas | solved | less urgent | 03/10/2018 | 05/10/2018 | Other | failing handshake for transfers from CA-VICTORIA-WESTGRID-T2_DATADISK to UK RAL-LCG2-ECHO | WLCG |
137498 | cms | solved | urgent | 01/10/2018 | 05/10/2018 | CMS_AAA WAN Access | Xrootd FileOpenErrors in production jobs | WLCG |
137416 | none | verified | top priority | 26/09/2018 | 01/10/2018 | Other | This TEST ALARM has been raised for testing GGUS alarm work flow after a new GGUS release. | WLCG |
137398 | cms | solved | urgent | 26/09/2018 | 03/10/2018 | CMS_Data Transfers | Transfers failing from SPRACE to RAL - No data available | WLCG |
137294 | snoplus.snolab.ca | closed | very urgent | 20/09/2018 | 05/10/2018 | File Access | No copy on tape error on Castor at RAL | EGI |
137267 | atlas | closed | urgent | 19/09/2018 | 03/10/2018 | Other | RAL-LCG2 transfer fail with "Communication error on send" | WLCG |
137254 | ops | verified | less urgent | 18/09/2018 | 04/10/2018 | Operations | [Rod Dashboard] Issue detected : ch.cern.LFC-Write-ops@lfc.gridpp.rl.ac.uk | EGI |
137151 | t2k.org | closed | urgent | 12/09/2018 | 08/10/2018 | File Transfer | Cannot upload files to grid an register replica | EGI |
137047 | t2k.org | closed | less urgent | 06/09/2018 | 04/10/2018 | File Access | Connection to RAL tape storage fails | EGI |
136840 | snoplus.snolab.ca | solved | very urgent | 23/08/2018 | 03/10/2018 | Other | Cannot upload files to LFN from Storage node | EGI |
Availability Report |
Day | Atlas | Atlas-Echo | CMS | LHCB | Alice | OPS | Comments |
---|---|---|---|---|---|---|---|
2018-10-01 | 53 | 100 | 100 | 100 | 100 | 100 | |
2018-10-02 | 91 | 99 | 100 | 100 | 100 | 100 | |
2018-10-03 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-04 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-05 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-06 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-07 | 100 | 100 | 99 | 100 | 100 | 100 | |
2018-10-08 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-09 | 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 |
---|---|---|---|
2018-08-01 | 100 | 98 | |
2018-08-02 | 100 | 99 | |
2018-08-03 | 100 | 99 | |
2018-08-04 | 100 | 99 | |
2018-08-05 | 100 | 98 | |
2018-08-06 | 100 | 98 | |
2018-08-07 | 100 | 96 | |
2018-08-08 | 100 | 96 |
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
Notes from Meeting. |