Difference between revisions of "Tier1 Operations Report 2014-05-14"

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* There are some ongoing grumbly problems with the WMSs. The developers have been contacted.
 
* There are some ongoing grumbly problems with the WMSs. 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 and (with the developers) to understand the problem. Draining of disk servers has been stopped while this investigation takes place.
+
* 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.  
 
* 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.
 
* 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.
 
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* We have now had repeated instances where the OPN link has not cleanly failed over to the backup link during problems with the primary.
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* Nothing to report.
 
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* Deployed gdss756 - gdss758 to cmsDisk on 1st May.
+
* Testing CVMFS Client version 2.1.19 ongoing. This is now rolled out to one batch of worker nodes. So far so good.
−
* Testing CVMFS Client version 2.1.19 ongoing.
+
* pheno & enmr.eu added to list of authorized VOs on ARC CEs
 +
* FTS3 updated to version 3.2.22 this morning.
 
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* Provisional dates for the Catsor 2.1.14 upgrade: Nameserver: Wed 28th May; Stagers: CMS: Tuesday 10th June; LHCb: Thursday 12th June; GEN: Tuesday 17th June; Atlas: Thursday 19th June.
+
* Provisional dates for the Castor 2.1.14 upgrade delayed to: Nameserver: Tuesday 10th June; Stagers to follow.
−
* FTS3 update planned for Wednesday 14th May (''Corrected from 14th June'').
+
* We are starting to plan the termination of the FTS2 service now that almost all use is on FTS3.
 
'''Listing by category:'''
 
'''Listing by category:'''
 
* Databases:
 
* Databases:
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* Networking:
 
* Networking:
 
** Move switches connecting recent disk servers batches ('11, '12) onto the Tier1 mesh network.
 
** Move switches connecting recent disk servers batches ('11, '12) onto the Tier1 mesh network.
−
** Update core Tier1 network and change connection to site and OPN including:
+
** Make routing changes to allow the removal of the UKLight Router.
−
*** Make routing changes to allow the removal of the UKLight Router.
+
 
* Fabric
 
* Fabric
 
** We are phasing out the use of the software server used by the small VOs.
 
** We are phasing out the use of the software server used by the small VOs.

Latest revision as of 10:46, 14 May 2014

RAL Tier1 Operations Report for 14th May 2014

Review of Issues during the week 7th to 14th May 2014.
  • There are some ongoing grumbly problems with the WMSs. 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.
  • 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.
Resolved Disk Server Issues
  • None.
Current operational status and issues
  • Nothing to report.
Ongoing Disk Server Issues
  • None
Notable Changes made this last week.
  • Testing CVMFS Client version 2.1.19 ongoing. This is now rolled out to one batch of worker nodes. So far so good.
  • pheno & enmr.eu added to list of authorized VOs on ARC CEs
  • FTS3 updated to version 3.2.22 this morning.
Declared in the GOC DB
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 SRMs 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
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 delayed to: Nameserver: Tuesday 10th June; Stagers to follow.
  • We are starting to plan the termination of the FTS2 service now that almost all use is on FTS3.

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 7th and 14th May 2014.
Service Scheduled? Outage/At Risk Start End Duration Reason
lcgwms06.gridpp.rl.ac.uk, SCHEDULED OUTAGE 14/05/2014 14:00 14/05/2014 16:00 2 hours 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
105374 Green Less Urgent In Progress 2014-05-13 2014-05-14 CMS RAL: migration to tape
105308 Green Less Urgent In Progress 2014-05-11 2014-05-13 Atlas Jobs at RAL-LCG2_MCORE are failing with "Failed to open shared memory object: Permission denied"
105161 Green Less Urgent In Progress 2014-05-05 2014-05-13 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 Waiting Reply 2013-10-21 2014-05-12 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
07/05/14 100 100 100 100 100 100 100
08/05/14 100 100 100 100 100 94 n/a
09/05/14 100 100 100 100 100 100 n/a
10/05/14 100 100 100 100 100 100 n/a
11/05/14 100 100 100 100 100 100 100
12/05/14 100 100 100 100 100 100 100
13/05/14 100 100 100 100 100 100 99
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