Difference between revisions of "Tier1 Operations Report 2018-01-31"
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| style="background-color: #b7f1ce; border-bottom: 1px solid silver; text-align: center; font-size: 1em; font-weight: bold; margin-top: 0; margin-bottom: 0; padding-top: 0.1em; padding-bottom: 0.1em;" | Notable Changes made since the last meeting. | | style="background-color: #b7f1ce; border-bottom: 1px solid silver; text-align: center; font-size: 1em; font-weight: bold; margin-top: 0; margin-bottom: 0; padding-top: 0.1em; padding-bottom: 0.1em;" | Notable Changes made since the last meeting. | ||
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− | + | * The Upgrade of Echo to the latest CEPH release (“Luminous”) was carried out successfully during the second half of last week. This was done as a rolling update with the service available throughout. | |
− | * The | + | * ALICE VOBOXes (lcgvo07 and lcgvo09) and LHCb VOBOX (lcgvo10) are now dual stack IPv4/6. |
− | * | + | * The hyperk VO has been enabled on the batch farm. |
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Revision as of 11:00, 31 January 2018
RAL Tier1 Operations Report for 31st January 2018
Review of Issues during the week 24th to 31st January 2018 |
- Last week we reported on an ongoing problem with the Atlas Castor instance. Overnight Tuesday to Wednesday last week (22/23 Jan) the Atlas Castor instance was declared down and this table (the “diskcopy” table and the associated indexes) was rebuilt. During Wednesday the Atlas Castor instance returned to normal operation. There is a large amount of what is effectively dark data (around 1Pbyte) to be deleted of the disk servers and this will take some time as a steady background operation.
- We await further updates regarding an ongoing problem with one of the BMS (Building Management Systems) in the R89 machine room. This has an intermittent fault.
Current operational status and issues |
- Ongoing security patching.
Resolved Castor Disk Server Issues |
- gdss736 (lhcbDst - D1T0) - Back in production RO
- gdss737 (lhcbDst - D1T0) - Back in production RO
Ongoing Castor Disk Server Issues |
- gdss762 (atlasStripInput - D0T1) – Removed again from prod for re-installation
Limits on concurrent batch system jobs. |
- CMS Multicore 550
Notable Changes made since the last meeting. |
- The Upgrade of Echo to the latest CEPH release (“Luminous”) was carried out successfully during the second half of last week. This was done as a rolling update with the service available throughout.
- ALICE VOBOXes (lcgvo07 and lcgvo09) and LHCb VOBOX (lcgvo10) are now dual stack IPv4/6.
- The hyperk VO has been enabled on the batch farm.
Entries in GOC DB starting since the last report. |
Declared in the GOC DB |
Service | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|
srm-alice.gridpp.rl.ac.uk, srm-atlas.gridpp.rl.ac.uk, srm-cms.gridpp.rl.ac.uk, srm-lhcb.gridpp.rl.ac.uk, srm-mice.gridpp.rl.ac.uk, | UNSCHEDULED | WARNING | 24/01/2018 22:00 | 25/01/2018 10:03 | 12 hours and 3 minutes | We have a problem with our tape library controller and cannot mount tapes. Writes to tape will succeed in that they will be stored on the disk buffers in front of the tape system. Recalls from tape will fail (unless the file is already on the disk buffer). Access to disk-only storage is unaffected. |
srm-atlas.gridpp.rl.ac.uk, | UNSCHEDULED | OUTAGE | 23/01/2018 15:45 | 24/01/2018 14:00 | 22 hours and 15 minutes | emergency downtime of Castor Atlas while rebuilding some database tables |
Advanced warning for other interventions |
The following items are being discussed and are still to be formally scheduled and announced. |
Ongoing or Pending - but not yet formally announced:
- Update to next CEPH version ("Luminous"). Ongoing.
Listing by category:
- Castor:
- Update systems to use SL7 and configured by Quattor/Aquilon. (Tape servers done)
- Move to generic Castor headnodes.
- Echo:
- Update to next CEPH version ("Luminous"). Ongoing.
- Networking
- Extend the number of services on the production network with IPv6 dual stack. (Done for Perfsonar, FTS3, all squids and the CVMFS Stratum-1 servers).
- Internal
- DNS servers will be rolled out within the Tier1 network.
- Infrastructure
- Testing of power distribution boards in the R89 machine room is being scheduled for some time late July / Early August. The effect of this on our services is being discussed.
Open GGUS Tickets (Snapshot during morning of meeting) |
Request id | Affected vo | Status | Priority | Date of creation | Last update | Type of problem | Subject | Scope |
---|---|---|---|---|---|---|---|---|
117683 | none | on hold | less urgent | 18/11/2015 | 03/01/2018 | Information System | CASTOR at RAL not publishing GLUE 2 | EGI |
124876 | ops | on hold | less urgent | 07/11/2016 | 13/11/2017 | Operations | [Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk | EGI |
127597 | cms | on hold | urgent | 07/04/2017 | 29/01/2018 | File Transfer | Check networking and xrootd RAL-CERN performance | EGI |
132589 | lhcb | in progress | very urgent | 21/12/2017 | 30/01/2018 | Local Batch System | Killed pilots at RAL | WLCG |
133139 | ops | in progress | less urgent | 30/01/2018 | 30/01/2018 | Operations | [Rod Dashboard] Issue detected : org.nordugrid.ARC-CE-sw-csh-ops@arc-ce01.gridpp.rl.ac.uk | EGI |
133154 | ops | in progress | less urgent | 31/01/2018 | 31/01/2018 | Operations | [Rod Dashboard] Issue detected : org.nordugrid.ARC-CE-sw-csh-ops@arc-ce02.gridpp.rl.ac.uk | EGI |
GGUS Tickets Closed Last week |
Request id | Affected vo | Status | Priority | Date of creation | Last update | Type of problem | Subject |
---|---|---|---|---|---|---|---|
131815 | t2k.org | verified | less urgent | 13/11/2017 | 29/01/2018 | Storage Systems | Extremely long download times for T2K files on tape at RAL |
132712 | other | solved | less urgent | 04/01/2018 | 30/01/2018 | Other | support for the hyperk VO (RAL-LCG2) |
132802 | cms | solved | urgent | 11/01/2018 | 26/01/2018 | CMS_AAA WAN Access | Low HC xrootd success rates at T1_UK_RAL |
132844 | atlas | verified | urgent | 14/01/2018 | 25/01/2018 | Storage Systems | UK RAL-LCG2 DATADISK transfer errors "DESTINATION OVERWRITE srm-ifce err:" |
132935 | atlas | solved | less urgent | 18/01/2018 | 24/01/2018 | Storage Systems | UK RAL-LCG2: deletion errors |
132963 | atlas | verified | top priority | 21/01/2018 | 24/01/2018 | Middleware | RAL arc-ce03 flakey |
133046 | ops | verified | less urgent | 25/01/2018 | 29/01/2018 | Operations | [Rod Dashboard] Issue detected : org.nordugrid.ARC-CE-sw-csh-ops@arc-ce02.gridpp.rl.ac.uk |
133066 | atlas | solved | top priority | 26/01/2018 | 30/01/2018 | File Transfer | Unable to contact fts3-test.gridpp.rl.ac.uk |
133082 | lhcb | verified | top priority | 27/01/2018 | 28/01/2018 | File Transfer | Data transfer problem at RAL |
133092 | atlas | solved | top priority | 29/01/2018 | 29/01/2018 | Other | RAL FTS server in troubles |
Availability Report |
Day | OPS | Alice | Atlas | CMS | LHCb | Atlas Echo | Comment |
---|---|---|---|---|---|---|---|
24/01/18 | 100 | 100 | 52 | 100 | 100 | 100 | |
25/01/18 | 100 | 100 | 100 | 100 | 100 | 100 | |
26/01/18 | 100 | 100 | 100 | 100 | 100 | 100 | |
27/01/18 | 100 | 100 | 100 | 100 | 100 | 100 | |
28/01/18 | 100 | 100 | 100 | 100 | 100 | 100 | |
29/01/18 | 100 | 100 | 100 | 100 | 100 | 100 | |
30/01/18 | 100 | 100 | 100 | 100 | 100 | 100 |
Hammercloud Test Report |
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_UCORE, Template 841); CMS HC = CMS HammerCloud
Day | Atlas HC | CMS HC | Comment |
---|---|---|---|
24/01/18 | 100 | 100 | |
25/01/18 | 100 | 100 | |
26/01/18 | 100 | 100 | |
27/01/18 | 0 | 100 | Atlas HC - no tests run in time bin |
28/01/18 | 100 | 99 | |
29/01/18 | 100 | 100 | |
30/01/18 | 100 | 100 |
Notes from Meeting. |
- None yet.