Difference between revisions of "Tier1 Operations Report 2018-10-08"
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! Scope | ! Scope | ||
|- | |- | ||
− | | | + | | style="background-color: green;" | 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 | ||
+ | |- | ||
+ | | style="background-color: green;" | 137498 | ||
| cms | | cms | ||
| solved | | solved | ||
| urgent | | urgent | ||
− | | | + | | 01/10/2018 |
− | | | + | | 05/10/2018 |
| CMS_AAA WAN Access | | CMS_AAA WAN Access | ||
− | | | + | | Xrootd FileOpenErrors in production jobs |
| WLCG | | WLCG | ||
|- | |- | ||
− | | | + | | style="background-color: green;" | 137416 |
| none | | 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 |
|- | |- | ||
− | | | + | | style="background-color: green;" | 137398 |
− | | | + | | cms |
| solved | | solved | ||
| urgent | | urgent | ||
− | | | + | | 26/09/2018 |
− | | | + | | 03/10/2018 |
− | | | + | | CMS_Data Transfers |
− | | | + | | Transfers failing from SPRACE to RAL - No data available |
− | | | + | | WLCG |
|- | |- | ||
− | | | + | | style="background-color: green;" | 137294 |
| snoplus.snolab.ca | | snoplus.snolab.ca | ||
| closed | | closed | ||
− | | urgent | + | | very urgent |
− | | | + | | 20/09/2018 |
− | | | + | | 05/10/2018 |
| File Access | | File Access | ||
− | | RAL | + | | No copy on tape error on Castor at RAL |
| EGI | | EGI | ||
|- | |- | ||
− | | | + | | style="background-color: green;" | 137267 |
− | | | + | | atlas |
− | | | + | | closed |
− | | | + | | urgent |
− | | | + | | 19/09/2018 |
− | | | + | | 03/10/2018 |
− | | | + | | Other |
− | | | + | | RAL-LCG2 transfer fail with "Communication error on send" |
− | | | + | | WLCG |
|- | |- | ||
− | | | + | | style="background-color: green;" | 137254 |
− | | | + | | ops |
− | | | + | | verified |
| less urgent | | less urgent | ||
− | | | + | | 18/09/2018 |
− | | | + | | 04/10/2018 |
− | | | + | | Operations |
− | | | + | | [Rod Dashboard] Issue detected : ch.cern.LFC-Write-ops@lfc.gridpp.rl.ac.uk |
| EGI | | EGI | ||
|- | |- | ||
− | | | + | | style="background-color: green;" | 137047 |
− | | | + | | t2k.org |
− | | | + | | closed |
| less urgent | | less urgent | ||
− | | | + | | 06/09/2018 |
− | | | + | | 04/10/2018 |
− | | | + | | File Access |
− | | | + | | Connection to RAL tape storage fails |
| EGI | | EGI | ||
|- | |- | ||
− | | | + | | style="background-color: green;" | 136840 |
− | | | + | | snoplus.snolab.ca |
| solved | | solved | ||
− | | | + | | very urgent |
− | | | + | | 23/08/2018 |
− | | | + | | 03/10/2018 |
− | | | + | | Other |
− | | | + | | Cannot upload files to LFN from Storage node |
− | | | + | | EGI |
|} | |} | ||
<!-- **********************End Availability Report************************** -----> | <!-- **********************End Availability Report************************** -----> |
Revision as of 08:33, 8 October 2018
RAL Tier1 Operations Report for 8th October 2018
Review of Issues during the week 2nd October 2018 to the 8th October 2018. |
- The on-going LFC issue appeared to have had been resolved early in the week (w/e 30th), as such the service was returned to Production.
- First breakage of database = 19th August Fixed 21st September Second breakage of database = Tuesday 25th September 1pm.
- Currently we have reasonable confidence that LFC issues are now understood and there is a fix:
- In conjunction with Fabrizio Furano (former LFC code developer at CERN), we have identified a flaw in the Oracle to MySQL migration process.
- An Oracle SEQUENCE had not been migrated into a MySQL table therefore it was only possible to register 6820 new records in the new MYSQL backend each time before a crash.
- This is explanation also accounts for the fact that rolling back the database to an earlier backup also worked
- Fabrizio provided a simple solution to fix the problem.
- We are now planning to implement the fix and restore the LFC to a full production service by close of business 02/10/2018.
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. |
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 |
---|---|---|---|---|---|---|---|---|
137619 | cms | in progress | urgent | 07/10/2018 | 08/10/2018 | CMS_AAA WAN Access | T1_UK_RAL xrootd read failures | 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 | 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 |
---|---|---|---|---|---|---|---|---|
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 |
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 |
---|---|---|---|---|---|---|---|
2018-09-24 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-25 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-26 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-27 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-28 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-29 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-09-30 | 100 | 100 | 100 | 100 | 100 | 100 | |
2018-10-01 | 53 | 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 |
---|---|---|---|
2018-08-24 | 100 | 99 | |
2018-08-25 | 100 | 99 | |
2018-08-26 | 100 | 100 | |
2018-08-27 | 100 | 100 | |
2018-08-28 | 100 | 100 | |
2018-08-29 | 100 | 99 | |
2018-08-30 | 100 | 99 | |
2018-08-01 | 100 | 99 |
Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud
Notes from Meeting. |