Difference between revisions of "Tier1 Operations Report 2014-05-21"

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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 14th to 21st May 2014.
 
| 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 14th to 21st May 2014.
 
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* There are some ongoing grumbly problems with the WMSs. The developers have been contacted.
+
* Grumbly problems with the WMSs reported last week ongoing. The developers have been contacted.
−
* A problem has been uncovered while investigating a missing Atlas file. Some half dozen files were lost during the draining of a disk server at the end of February. We are working to check if this is the only such instance of this and (with the developers) to understand the problem. Investigations so far suggest this is not a widespread problem. Draining of disk servers has been stopped while this investigation takes place.  
+
* Problem reported last week with some half dozen Atlas files were lost during the draining of a disk server at the end of February is now understood. This was an isolated incident. Draining has been resumed.
−
* Around ten days ago a GGUS ticket was escalated to an 'alarm' ticket by LHCb but the Tier1 pager failed to call out. This has been traced to a a problem with the e-mail from GGUS. The GGUS team were contacted. They have fixed the problem and we have tested that the alarm tickets now work again.
+
* There was a problem with on FTS2 last Friday (16th) which led to a ticket from CMS.
 +
* The checksum checker found a corrupt LHCb file in Castor which has been declared lost.
 
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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 this last week.
 
| 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 this last week.
 
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* Testing CVMFS Client version 2.1.19 ongoing. This is now rolled out to one batch of worker nodes. So far so good.
+
* CVMFS Client version 2.1.19 in final stages of being rolled out to whole farm following successful testing so far.
−
* pheno & enmr.eu added to list of authorized VOs on ARC CEs
+
* One new disk server has been deployed to CMS disk. (This replaced a server (GDSS758) that failed a couple of weeks ago).
−
* FTS3 updated to version 3.2.22 this morning.
+
* A new tape controller server (ACSLS) was put into operation yesterday morning (Tuesday 20th May).
 
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! Duration
 
! Duration
 
! Reason
 
! Reason
−
|-
 
−
| srm-lhcb-tape.gridpp.rl.ac.uk,
 
−
| SCHEDULED
 
−
| OUTAGE
 
−
| 20/05/2014 08:00
 
−
| 20/05/2014 11:00
 
−
| 3 hours
 
−
| Outage of tape system for update of tape library controller. (Postponed from 13th May).
 
−
|-
 
−
| All SRMs
 
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| SCHEDULED
 
−
| WARNING
 
−
| 20/05/2014 08:00
 
−
| 20/05/2014 11:00
 
−
| 3 hours
 
−
| Outage of tape system for update of tape library controller. (Postponed from 13th May).
 
−
|-
 
−
| lcgvo08.gridpp.rl.ac.uk,
 
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| SCHEDULED
 
−
| OUTAGE
 
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| 15/05/2014 15:00
 
−
| 15/05/2014 16:00
 
−
| 1 hour
 
−
| Downtime for system maintenance
 
−
|-
 
−
| lcgvo07.gridpp.rl.ac.uk,
 
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| SCHEDULED
 
−
| OUTAGE
 
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| 15/05/2014 14:00
 
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| 15/05/2014 15:00
 
−
| 1 hour
 
−
| Downtime for system maintenance
 
−
|-
 
−
| lcglb02.gridpp.rl.ac.uk,
 
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| SCHEDULED
 
−
| OUTAGE
 
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| 15/05/2014 13:00
 
−
| 15/05/2014 14:00
 
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| 1 hour
 
−
| Downtime for system maintenance
 
−
|-
 
−
| lcglb01.gridpp.rl.ac.uk,
 
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| SCHEDULED
 
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| OUTAGE
 
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| 15/05/2014 10:45
 
−
| 15/05/2014 11:45
 
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| 1 hour
 
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| Downtime for system maintenance
 
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|-
 
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| lcglb04.gridpp.rl.ac.uk,
 
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| SCHEDULED
 
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| OUTAGE
 
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| 15/05/2014 09:30
 
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| 15/05/2014 10:30
 
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| 1 hour
 
−
| Downtime for system maintenance
 
 
|-
 
|-
 
| lcgui02.gridpp.rl.ac.uk,  
 
| lcgui02.gridpp.rl.ac.uk,  
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<!-- ******* still to be formally scheduled and/or announced ******* ----->
 
<!-- ******* still to be formally scheduled and/or announced ******* ----->
−
* Provisional dates for the Castor 2.1.14 upgrade delayed to: Nameserver: Tuesday 10th June; Stagers to follow.
+
* Provisional dates for the Castor 2.1.14 upgrade: Nameserver: Tuesday 10th June; Stagers: CMS- Tue 17th June; LHCb - Thu 19th June; GEN - Tue 24th June; Atlas - Thu 26th June.
 
* We are starting to plan the termination of the FTS2 service now that almost all use is on FTS3.
 
* We are starting to plan the termination of the FTS2 service now that almost all use is on FTS3.
 +
* Maintenance will be carried out on the diesel generator tomorrow morning (22nd May) from 09:00 - 11:00. Should we suffer a mains power failure during this time window we will not have generator backup.
 +
* On Wednesday 28th May we plan to move the network switches for some Castor disk servers to the mesh network to alleviate a bottleneck. This will be during an at risk on Castor.
 
'''Listing by category:'''
 
'''Listing by category:'''
 
* Databases:
 
* Databases:
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|-style="background:#b7f1ce"
 
|-style="background:#b7f1ce"
 
! GGUS ID !! Level !! Urgency !! State !! Creation !! Last Update !! VO !! Subject
 
! GGUS ID !! Level !! Urgency !! State !! Creation !! Last Update !! VO !! Subject
−
|-
 
−
| 105493
 
−
| Green
 
−
| Urgent
 
−
| In Progress
 
−
| 2014-05-16
 
−
| 2014-05-16
 
−
| CMS
 
−
| Failing transfers from T1_UK_RAL_Buffer to many sites
 
 
|-
 
|-
 
| 105405
 
| 105405

Latest revision as of 13:22, 21 May 2014

RAL Tier1 Operations Report for 21st May 2014

Review of Issues during the week 14th to 21st May 2014.
  • Grumbly problems with the WMSs reported last week ongoing. The developers have been contacted.
  • Problem reported last week with some half dozen Atlas files were lost during the draining of a disk server at the end of February is now understood. This was an isolated incident. Draining has been resumed.
  • There was a problem with on FTS2 last Friday (16th) which led to a ticket from CMS.
  • The checksum checker found a corrupt LHCb file in Castor which has been declared lost.
Resolved Disk Server Issues
  • None.
Current operational status and issues
  • Nothing to report.
Ongoing Disk Server Issues
  • None
Notable Changes made this last week.
  • CVMFS Client version 2.1.19 in final stages of being rolled out to whole farm following successful testing so far.
  • One new disk server has been deployed to CMS disk. (This replaced a server (GDSS758) that failed a couple of weeks ago).
  • A new tape controller server (ACSLS) was put into operation yesterday morning (Tuesday 20th May).
Declared in the GOC DB
Service Scheduled? Outage/At Risk Start End Duration Reason
lcgui02.gridpp.rl.ac.uk, SCHEDULED OUTAGE 30/04/2014 14:00 29/05/2014 13:00 28 days, 23 hours Service being decommissioned.
Advanced warning for other interventions
The following items are being discussed and are still to be formally scheduled and announced.
  • Provisional dates for the Castor 2.1.14 upgrade: Nameserver: Tuesday 10th June; Stagers: CMS- Tue 17th June; LHCb - Thu 19th June; GEN - Tue 24th June; Atlas - Thu 26th June.
  • We are starting to plan the termination of the FTS2 service now that almost all use is on FTS3.
  • Maintenance will be carried out on the diesel generator tomorrow morning (22nd May) from 09:00 - 11:00. Should we suffer a mains power failure during this time window we will not have generator backup.
  • On Wednesday 28th May we plan to move the network switches for some Castor disk servers to the mesh network to alleviate a bottleneck. This will be during an at risk on Castor.

Listing by category:

  • Databases:
    • Switch LFC/FTS/3D to new Database Infrastructure.
  • Castor:
    • Castor 2.1.14 testing was largely complete, although a new minor version (2.1.14-12) will be released soon.
  • Networking:
    • Move switches connecting recent disk servers batches ('11, '12) onto the Tier1 mesh network.
    • Make routing changes to allow the removal of the UKLight Router.
  • Fabric
    • We are phasing out the use of the software server used by the small VOs.
    • Firmware updates on remaining EMC disk arrays (Castor, FTS/LFC)
    • There will be circuit testing of the remaining (i.e. non-UPS) circuits in the machine room during 2014.
Entries in GOC DB starting between the 14th and 21st May 2014.
Service Scheduled? Outage/At Risk Start End Duration Reason
srm-lhcb-tape.gridpp.rl.ac.uk, SCHEDULED OUTAGE 20/05/2014 08:00 20/05/2014 11:00 3 hours Outage of tape system for update of tape library controller. (Postponed from 13th May).
All SRM end points SCHEDULED WARNING 20/05/2014 08:00 20/05/2014 11:00 3 hours Outage of tape system for update of tape library controller. (Postponed from 13th May).
lcgvo08.gridpp.rl.ac.uk, SCHEDULED OUTAGE 15/05/2014 15:00 15/05/2014 16:00 1 hour Downtime for system maintenance
lcgvo07.gridpp.rl.ac.uk, SCHEDULED OUTAGE 15/05/2014 14:00 15/05/2014 15:00 1 hour Downtime for system maintenance
lcglb02.gridpp.rl.ac.uk, SCHEDULED OUTAGE 15/05/2014 13:00 15/05/2014 14:00 1 hour Downtime for system maintenance
lcglb01.gridpp.rl.ac.uk, SCHEDULED OUTAGE 15/05/2014 10:45 15/05/2014 11:45 1 hour Downtime for system maintenance
lcglb04.gridpp.rl.ac.uk, SCHEDULED OUTAGE 15/05/2014 09:30 15/05/2014 10:30 1 hour Downtime for system maintenance
lcgwms06.gridpp.rl.ac.uk, SCHEDULED OUTAGE 14/05/2014 14:00 14/05/2014 15:20 1 hour and 20 minutes Downtime for system maintenance
lcgwms05.gridpp.rl.ac.uk, SCHEDULED OUTAGE 14/05/2014 11:30 14/05/2014 13:30 2 hours Downtime for system maintenance
lcgfts3.gridpp.rl.ac.uk, SCHEDULED OUTAGE 14/05/2014 10:00 14/05/2014 12:00 2 hours FTS3 service at RAL unavailable for update to version 3.2.22
lcgwms04.gridpp.rl.ac.uk, SCHEDULED OUTAGE 14/05/2014 09:30 14/05/2014 10:46 1 hour and 16 minutes Downtime for system maintenance
lcgui02.gridpp.rl.ac.uk, SCHEDULED OUTAGE 30/04/2014 14:00 29/05/2014 13:00 28 days, 23 hours Service being decommissioned.
Open GGUS Tickets (Snapshot during morning of meeting)
GGUS ID Level Urgency State Creation Last Update VO Subject
105405 Green Urgent In Progress 2014-05-14 2014-05-15 please check your Vidyo router firewall configuration
105308 Green Less Urgent On Hold 2014-05-11 2014-05-19 Atlas Jobs at RAL-LCG2_MCORE are failing with "Failed to open shared memory object: Permission denied"
105161 Yellow Less Urgent In Progress 2014-05-05 2014-05-16 H1 hone jobs submitted into CREAM queues through lcgwms05.gridpp.rl.ac.uk & lcgwms06.gridpp.rl.ac.uk WMSs are are Ready status long time (more as 5 hours)
105100 Green Urgent On Hold 2014-05-02 2014-05-12 CMS T1_UK_RAL Consistency Check (May14)
98249 Red Urgent In Progress 2013-10-21 2014-05-20 SNO+ please configure cvmfs stratum-0 for SNO+ at RAL T1
Availability Report

Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 508); CMS HC = CMS HammerCloud

Day OPS Alice Atlas CMS LHCb Atlas HC CMS HC Comment
14/05/14 100 100 100 100 100 100 100
15/05/14 100 100 100 100 100 94 96
16/05/14 100 100 100 100 100 100 100
17/05/14 100 100 100 100 100 100 100
18/05/14 100 100 100 100 100 99 100
19/05/14 100 100 100 100 100 99 100
20/05/14 100 100 100 100 100 100 100
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