Tier1 Operations Report 2017-10-25

RAL Tier1 Operations Report for 25th October 2017

Review of Issues during the week 18th to 25th October 2017.

• There was a problem with Atlas file transfers to Echo that started last week. This was traced to the update to the "test" FTS3 service (used by Atlas). During this upgrade some FTS settings were changed. The relevant parameter here being the number of concurrent streams for a transfer. The FTS3 settings were re-instated earlier this week and the problem solved.

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.

• Re-distribution of data in Echo onto the 2015 capacity hardware is ongoing.
• Update of the Production FTS3 service to version to 3.7.4 took place last Thursday (12th Oct).

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:

• 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.

• None

Open GGUS Tickets (Snapshot during morning of meeting)

GGUS ID	Level	Urgency	State	Creation	Last Update	VO	Subject
130949	Green	Urgent	In Progress	2017-10-06	2017-10-10	CMS	Transfers failing to T1_UK_RAL_Disk
130883	Green	Urgent	Waiting for Reply	2017-10-02	2017-10-13	CMS	T1_UK_RAL_Disk to T2_US_Florida transfers are failing due to missing file(s)
130207	Amber	Urgent	On Hold	2017-08-24	2017-10-11	MICE	Timeouts when copying MICE reco data to CASTOR
130193	Amber	Urgent	In Progress	2017-08-23	2017-10-13	CMS	Staging from RAL tape systems
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.

Availability Report

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	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
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	100	100

Notes from Meeting.

• None yet