Difference between revisions of "Tier1 Operations Report 2019-07-03"

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(Created page with "==RAL Tier1 Operations Report for 3rd July 2019== __NOTOC__ ====== ====== <!-- ************************************************************* -----> <!-- ***********Start Rev...")
 
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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;" | Review of Issues during the week 26th June 2019 to the 3rd July 2019.
 
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* Frontier Service went down over weekend.  Tier-1’s interpretation is that ATLAS were probably doing “something silly” with their US HPCs.  The Production Manager to find out when the disk replacement for the Oracle database took place and if it went smoothly. 
 +
 +
* CMS job failures: In the last two weeks several periods of CMS SRM failures. Investigation on going: Hammer Cloud jobs have been 25% failure rate recently.  New monitoring doesn’t allow us to split HC work from normal production.  HC failures could be due to problems accessing data at other sites (e.g. not our fault), or could be a problem at RAL.
 +
45% job failure rate at RAL for production work.  Significantly higher than other Tier-1s, not just log collect, many normal production jobs.  Error code is related to file reads.  Echo caching?!
 +
  
 
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GGUS Tickets (Snapshot taken during morning of the meeting).   
 
GGUS Tickets (Snapshot taken during morning of the meeting).   
 
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! Scope
 
! Scope
 
|-
 
|-
−
| 141872
+
| 141990
−
| TEAM
+
−
| lhcb
+
−
| RAL-LCG2
+
−
| top priority
+
−
| NGI_UK
+
−
| in progress
+
−
| 2019-06-26 08:29:00
+
−
| srm-lhcb.gridpp.rl.ac.uk seems in a bad state (time out)
+
−
| WLCG
+
−
|-
+
−
| 141838
+
 
| USER
 
| USER
 
| cms
 
| cms
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| NGI_UK
 
| NGI_UK
 
| in progress
 
| in progress
−
| 2019-06-24 11:13:00
+
| 2019-07-01 09:37:00
−
| Transfers failing from CERN Tape to RAL Disk
+
| Intermittent HC failures at T1_UK_RAL
 
| WLCG
 
| WLCG
 
|-
 
|-
−
| 141608
+
| 141968
 
| USER
 
| USER
−
| snoplus.snolab.ca
+
| cms
 
| RAL-LCG2
 
| RAL-LCG2
−
| less urgent
+
| very urgent
 
| NGI_UK
 
| NGI_UK
 
| in progress
 
| in progress
−
| 2019-06-06 08:55:00
+
| 2019-06-28 18:19:00
−
| Permissions on RAL SE
+
| SAM (CE) and Hammer Cloud Failures at T1_UK_RAL
−
| EGI
+
| WLCG
 
|-
 
|-
 
| 140870
 
| 140870
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| NGI_UK
 
| NGI_UK
 
| in progress
 
| in progress
−
| 2019-06-20 14:35:00
+
| 2019-06-27 13:48:00
 
| Files vanished from RAL tape?
 
| Files vanished from RAL tape?
 
| EGI
 
| EGI
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| less urgent
 
| less urgent
 
| NGI_UK
 
| NGI_UK
−
| in progress
+
| waiting for reply
−
| 2019-06-25 13:03:00
+
| 2019-06-26 14:49:00
 
| mice LFC to DFC transition
 
| mice LFC to DFC transition
 
| EGI
 
| EGI
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| EGI
 
| EGI
 
|}
 
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 +
 +
 
<!-- **********************End Availability Report************************** ----->
 
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| NGI_UK
 
| NGI_UK
 
| solved
 
| solved
−
| 2019-06-25 18:49:00
+
| 2019-06-26 09:20:00
 
| T1_UK_RAL SRM is timing out
 
| T1_UK_RAL SRM is timing out
 
| WLCG
 
| WLCG
 
|-
 
|-
−
| 141771
+
| 141872
−
| USER
+
| TEAM
−
| cms
+
| lhcb
 
| RAL-LCG2
 
| RAL-LCG2
−
| urgent
+
| top priority
 
| NGI_UK
 
| NGI_UK
−
| solved
+
| verified
−
| 2019-06-24 14:00:00
+
| 2019-06-28 07:11:00
−
| file read error at T1_UK_RAL
+
| srm-lhcb.gridpp.rl.ac.uk seems in a bad state (time out)
 
| WLCG
 
| WLCG
 
|-
 
|-
−
| 141638
+
| 141838
 
| USER
 
| USER
 
| cms
 
| cms
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| urgent
 
| urgent
 
| NGI_UK
 
| NGI_UK
−
| closed
+
| solved
−
| 2019-06-25 23:59:00
+
| 2019-07-02 14:24:00
−
| SAM XROOTD read failure at T1_UK_RAL
+
| Transfers failing from CERN Tape to RAL Disk
 
| WLCG
 
| WLCG
 
|-
 
|-
−
| 141549
+
| 141704
−
| TEAM
+
| USER
−
| atlas
+
| cms
 
| RAL-LCG2
 
| RAL-LCG2
 
| less urgent
 
| less urgent
 
| NGI_UK
 
| NGI_UK
 
| closed
 
| closed
−
| 2019-06-25 23:59:00
+
| 2019-06-27 23:59:00
−
| ATLAS-RAL-Frontier and some of Lpad-RAL-LCG2 squid degraded
+
| PhedEX transfer 1799773
 
| WLCG
 
| WLCG
 
|-
 
|-
−
| 141537
+
| 141608
−
| TEAM
+
| USER
−
| lhcb
+
| snoplus.snolab.ca
 
| RAL-LCG2
 
| RAL-LCG2
−
| very urgent
+
| less urgent
 
| NGI_UK
 
| NGI_UK
−
| verified
+
| solved
−
| 2019-06-25 12:52:00
+
| 2019-07-02 09:27:00
−
| Pilots Failed at RAL-LCG2
+
| Permissions on RAL SE
−
| WLCG
+
| EGI
 
|-
 
|-
 
| 141462
 
| 141462
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| top priority
 
| top priority
 
| NGI_UK
 
| NGI_UK
−
| solved
+
| verified
−
| 2019-06-25 15:52:00
+
| 2019-06-30 07:36:00
 
| Error: Connection limit exceeded
 
| Error: Connection limit exceeded
 
| WLCG
 
| WLCG
 
|}
 
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−
 
 
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Availability Report
 
Availability Report
 
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! Comments
 
! Comments
 
|-
 
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| 2019-06-19
+
| 2019-06-26
 
| 100
 
| 100
 
| 100
 
| 100
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|  
 
|  
 
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−
| 2019-06-20
+
| 2019-06-27
 +
| 100
 
| 100
 
| 100
−
| 86
 
 
| 100
 
| 100
 
| 100
 
| 100
 
|  
 
|  
 
|-
 
|-
−
| 2019-06-21
+
| 2019-06-28
 +
| 100
 
| 100
 
| 100
−
| 96
 
 
| 100
 
| 100
 
| 100
 
| 100
 
|  
 
|  
 
|-
 
|-
−
| 2019-06-22
+
| 2019-06-29
 +
| 100
 
| 100
 
| 100
−
| 22
 
 
| 100
 
| 100
 
| 100
 
| 100
 
|  
 
|  
 
|-
 
|-
−
| 2019-06-23
+
| 2019-06-30
 +
| 100
 
| 100
 
| 100
−
| 80
 
 
| 100
 
| 100
 
| 100
 
| 100
 
|  
 
|  
 
|-
 
|-
−
| 2019-06-24
+
| 2019-07-01
 +
| 100
 +
| 100
 +
| 100
 
| 100
 
| 100
−
| 95
 
−
| 91
 
−
| 93
 
 
|  
 
|  
 
|-
 
|-
−
| 2019-06-25
+
| 2019-07-02
 +
| 98
 
| 100
 
| 100
−
| 62
 
 
| 100
 
| 100
 
| 100
 
| 100
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! Day !! Atlas HC !! CMS HC !! Comment
 
! Day !! Atlas HC !! CMS HC !! Comment
 
|-
 
|-
−
| 2019-06-19 || 100 || 98 ||  
+
| 2019-06-26 || 100 || 98 ||  
 
|-
 
|-
−
| 2019-06-20 || 100 || 85 ||  
+
| 2019-06-27 || 100 || 76 ||  
 
|-
 
|-
−
| 2019-06-21 || 0 || 93 ||  
+
| 2019-06-28 || 100 || 77 ||  
 
|-
 
|-
−
| 2019-06-22 || 100 || 98 ||  
+
| 2019-06-29 || 100 || 76 ||  
−
|-
+
|
−
| 2019-06-23 || 100 || 98 ||  
+
| 2019-06-30 || 100 || 75 ||  
 
|-
 
|-
−
| 2019-06-24 || 100 || 97 ||  
+
| 2019-07-01 || 100 || 77 ||  
 
|-
 
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| 2019-06-25 || 100 || 97 ||  
+
| 2019-07-02 || 100 || 77 ||  
 
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Latest revision as of 10:08, 3 July 2019

RAL Tier1 Operations Report for 3rd July 2019

Review of Issues during the week 26th June 2019 to the 3rd July 2019.
  • Frontier Service went down over weekend. Tier-1’s interpretation is that ATLAS were probably doing “something silly” with their US HPCs. The Production Manager to find out when the disk replacement for the Oracle database took place and if it went smoothly.
  • CMS job failures: In the last two weeks several periods of CMS SRM failures. Investigation on going: Hammer Cloud jobs have been 25% failure rate recently. New monitoring doesn’t allow us to split HC work from normal production. HC failures could be due to problems accessing data at other sites (e.g. not our fault), or could be a problem at RAL.

45% job failure rate at RAL for production work. Significantly higher than other Tier-1s, not just log collect, many normal production jobs. Error code is related to file reads. Echo caching?!


Current operational status and issues
Notable Changes made since the last meeting.
  • NTR
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
Advanced warning for other interventions
The following items are being discussed and are still to be formally scheduled and announced.

Listing by category:

  • DNS servers will be rolled out within the Tier1 network.
Open

GGUS Tickets (Snapshot taken during morning of the meeting).

Ticket-ID Type VO Site Priority Responsible Unit Status Last Update Subject Scope
141990 USER cms RAL-LCG2 urgent NGI_UK in progress 2019-07-01 09:37:00 Intermittent HC failures at T1_UK_RAL WLCG
141968 USER cms RAL-LCG2 very urgent NGI_UK in progress 2019-06-28 18:19:00 SAM (CE) and Hammer Cloud Failures at T1_UK_RAL WLCG
140870 USER t2k.org RAL-LCG2 less urgent NGI_UK in progress 2019-06-27 13:48:00 Files vanished from RAL tape? EGI
140447 USER dteam RAL-LCG2 less urgent NGI_UK on hold 2019-05-22 14:20:00 packet loss outbound from RAL-LCG2 over IPv6 EGI
140220 USER mice RAL-LCG2 less urgent NGI_UK waiting for reply 2019-06-26 14:49:00 mice LFC to DFC transition EGI
139672 USER other RAL-LCG2 urgent NGI_UK waiting for reply 2019-06-17 08:24:00 No LIGO pilots running at RAL EGI


GGUS Tickets Closed Last week
Ticket-ID Type VO Site Priority Responsible Unit Status Last Update Subject Scope
141901 USER cms RAL-LCG2 urgent NGI_UK solved 2019-06-26 09:20:00 T1_UK_RAL SRM is timing out WLCG
141872 TEAM lhcb RAL-LCG2 top priority NGI_UK verified 2019-06-28 07:11:00 srm-lhcb.gridpp.rl.ac.uk seems in a bad state (time out) WLCG
141838 USER cms RAL-LCG2 urgent NGI_UK solved 2019-07-02 14:24:00 Transfers failing from CERN Tape to RAL Disk WLCG
141704 USER cms RAL-LCG2 less urgent NGI_UK closed 2019-06-27 23:59:00 PhedEX transfer 1799773 WLCG
141608 USER snoplus.snolab.ca RAL-LCG2 less urgent NGI_UK solved 2019-07-02 09:27:00 Permissions on RAL SE EGI
141462 TEAM lhcb RAL-LCG2 top priority NGI_UK verified 2019-06-30 07:36:00 Error: Connection limit exceeded WLCG

Availability Report

Day Atlas CMS LHCB Alice Comments
2019-06-26 100 100 100 100
2019-06-27 100 100 100 100
2019-06-28 100 100 100 100
2019-06-29 100 100 100 100
2019-06-30 100 100 100 100
2019-07-01 100 100 100 100
2019-07-02 98 100 100 100
Hammercloud Test Report
Target Availability for each site is 97.0% Red <90% Orange <97%
Day Atlas HC CMS HC Comment
2019-06-26 100 98
2019-06-27 100 76
2019-06-28 100 77
2019-06-29 100 76 2019-06-30 100 75
2019-07-01 100 77
2019-07-02 100 77



Key: Atlas HC = Atlas HammerCloud (Queue RAL-LCG2_UCORE, Template 841); CMS HC = CMS HammerCloud

Notes from Meeting.
Retrieved from "https://www.gridpp.ac.uk/w/index.php?title=Tier1_Operations_Report_2019-07-03&oldid=20160"