Tier1 Operations Report 2017-10-04

RAL Tier1 Operations Report for 4th October 2017

Review of Issues during the week 27th September to 4th October 2017.

• We have had continued problems with the LHCb SRM SAM tests since the 8th September. Two disk servers that are involved in the failing transfers have been set read-only and the tests now appear to pass consistently. However, the problem is not yet fully understood. LHCb are not seeing operational problems as a result of this.

Resolved Disk Server Issues

• None

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

• None

Limits on concurrent batch system jobs.

• CMS Multicore 550

Notable Changes made since the last meeting.

• CVMFS Stratum-1 servers (stratum01 and strtaum02.gridpp.rl.ac.uk) have been upgraded to cvmfs-server v2.4.1
• The ongoing re-distribution of data in Echo onto the 2015 capacity hardware is taking place. This is being done cautiously owing to the ongoing problem where disk errors in the newly added systems trigger a bug in CEPH that requires some manual intervention to work round.

Declared in the GOC DB

• None

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:

• Upgrade the FTS3 service to a version that will no longer support the SOAP interface. The SOAP interface was disabled on Monday (17th July).
• Re-distribute the data in Echo onto the 2015 capacity hardware. (Ongoing)

Listing by category:

• Castor:
  • 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 FTS will be updated now the requirement to support the deprecated SOAP interface has been removed.

Entries in GOC DB starting since the last report.

• None

Open GGUS Tickets (Snapshot during morning of meeting)

GGUS ID	Level	Urgency	State	Creation	Last Update	VO	Subject
130537	Green	Less Urgent	In Progress	2017-09-13	2017-09-13	OPS	[Rod Dashboard] Issue detected : org.sam.SRM-GetSURLs-ops@srm-solid.gridpp.rl.ac.uk
130467	Green	Urgent	In Progress	2017-09-10	2017-09-10	CMS	T1_UK_RAL has SAM3 CE and SRM critical > 2hours
130207	Yellow	Urgent	In Progress	2017-08-24	2017-09-06	MICE	Timeouts when copying MICE reco data to CASTOR
130193	Yellow	Urgent	In Progress	2017-08-23	2017-09-25	CMS	Staging from RAL tape systems
128991	Green	Less Urgent	Waiting for Reply	2017-06-16	2017-09-18	Solid	solidexperiment.org CASTOR tape support
127597	Red	Urgent	On Hold	2017-04-07	2017-06-14	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.

Availability Report

Day	OPS	Alice	Atlas	CMS	LHCb	Atlas Echo	Comment
27/09/17	100	100	100	100	100	100
28/09/17	100	100	100	100	100	100
29/09/17	100	100	100	99	100	100	One SRM SAM test failure: User timeout.
30/09/17	100	100	100	100	100	100
01/10/17	100	100	100	100	100	100
02/10/17	100	100	100	100	100	100
03/10/17	100	100	100	100	100	100

Hammercloud Test Report

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
20/09/17	96	94	100
21/09/17	97	100	100
22/09/17	90	100	100
23/09/17	96	99	100
24/09/17	98	100	100
25/09/17	100	100	100
26/09/17	100	100	100

Notes from Meeting.

• None yet.