RAL Tier1 Operations Report for 25th October 2017
| Review of Issues during the week 18th to 25th October 2017.
|
- Nothing significant to report.
| Resolved Disk Server Issues
|
| Current operational status and issues
|
- There is a problem on the site firewall which is causing problems for some specific data flows. Discussions have been taking place with the vendor. This is having an effect on our data that flows through the firewall (such as to/from worker nodes).
| Ongoing Disk Server Issues
|
| Limits on concurrent batch system jobs.
|
| Notable Changes made since the last meeting.
|
- Switched CMS over to using xrootd.echo.stfc.ac.uk. This means that CMS jobs will use xrootd.echo.stfc.ac.uk as the primary means of accessing local data via xrootd.
- Re-distribution of data in Echo onto the 2015 capacity hardware is ongoing.
| Advanced warning for other interventions
|
| The following items are being discussed and are still to be formally scheduled and announced.
|
Pending - but not yet formally announced:
- Re-distribute the data in Echo onto the 2015 capacity hardware. (Ongoing)
Listing by category:
- Castor:
- Update systems (initially tape servers) to use SL7 and configured by Quattor/Aquilon.
- Move to generic Castor headnodes.
- Echo:
- Re-distribute the data in Echo onto the remaining 2015 capacity hardware.
- Networking
- Extend the number of services on the production network with IPv6 dual stack. (Done for Perfsonar, all squids and the CVMFS Stratum-1 servers).
- Services
- The Production and "Test" (Atlas) FTS3 services will be merged and will make use of a resilient distributed database.
| Entries in GOC DB starting since the last report.
|
| Open GGUS Tickets (Snapshot during morning of meeting)
|
| GGUS ID |
Level |
Urgency |
State |
Creation |
Last Update |
VO |
Subject
|
| 131299
|
Green
|
Urgent
|
In Progress
|
2017-10-24
|
2017-10-24
|
CMS
|
T1_UK_RAL HammerCloud failures
|
| 131213
|
Green
|
Urgent
|
Waiting for Reply
|
2017-10-19
|
2017-10-23
|
CMS
|
Issues with fallback requests
|
| 130949
|
Green
|
Urgent
|
In Progress
|
2017-10-06
|
2017-10-23
|
CMS
|
Transfers failing to T1_UK_RAL_Disk
|
| 130207
|
Amber
|
Urgent
|
On Hold
|
2017-08-24
|
2017-10-11
|
MICE
|
Timeouts when copying MICE reco data to CASTOR
|
| 127597
|
Red
|
Urgent
|
On Hold
|
2017-04-07
|
2017-10-05
|
CMS
|
Check networking and xrootd RAL-CERN performance
|
| 124876
|
Red
|
Less Urgent
|
On Hold
|
2016-11-07
|
2017-01-01
|
OPS
|
[Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk
|
| 117683
|
Red
|
Less Urgent
|
On Hold
|
2015-11-18
|
2017-07-06
|
|
CASTOR at RAL not publishing GLUE 2.
|
| Day |
OPS |
Alice |
Atlas |
CMS |
LHCb |
Atlas Echo |
Comment
|
| 18/10/17 |
100 |
100 |
98 |
98 |
100 |
100 |
Atlas: Single SRM test failure: "error 500 Command failed."; CMS: Two SRM test failures on PUT ([SRM_FAILURE] Unable to issue PrepareToPut request to Castor).
|
| 19/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
| 20/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
| 21/10/17 |
100 |
100 |
100 |
96 |
100 |
100 |
Three SRM test failures on PUT ([SRM_FAILURE] Unable to issue PrepareToPut request to Castor).
|
| 22/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
| 23/10/17 |
100 |
100 |
100 |
100 |
100 |
100 |
|
| 24/10/17 |
100 |
100 |
100 |
99 |
100 |
100 |
Single SRM test failure on PUT ([SRM_FAILURE] Unable to issue PrepareToPut request to Castor).
|
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 845); Atlas HC Echo = Atlas Echo (Template 841);CMS HC = CMS HammerCloud
| Day |
Atlas HC |
Atlas HC Echo |
CMS HC |
Comment
|
| 18/10/17 |
98 |
100 |
99 |
|
| 19/10/17 |
94 |
100 |
97 |
|
| 20/10/17 |
100 |
99 |
83 |
|
| 21/10/17 |
100 |
100 |
98 |
|
| 22/10/17 |
98 |
100 |
97 |
|
| 23/10/17 |
99 |
100 |
98 |
|
| 24/10/17 |
100 |
N/A |
47 |
CMS - Problems arising following switchover to use Echo.
|
