2023-03-09 Meeting Notes

 Date

Mar 9, 2023

 Participants

  • @James Walder

  • @Thomas, Jyothish (STFC,RAL,SC)

  • @Thomas Byrne

  • @Ian Johnson

  • Lancs: Gerard, Matt, Steven

  • Manchester; Alessandra

 Goals

  • List of Epics

  • New tickets

  • Consider new functionality / items

  • Detailed discussion of important topics

  • Site report activity

 

 Discussion topics

Current status of Echo Gateways / WNs testing

  • lcg2269 and lcg2270 with Vector read patch (+ openssl fix)

  • WNs openssl fix deployed

  • / store fix for CMS out

  • gw14 used for ‘passive’ CMSD testing

  • lsc files deployments for VOMS consolidating with the grid-services: tested dev-gw1; aiming for testing on prod.

Alice gateway congfiguration

  • Updates for space reporting and the related activities

 

Item

Presenter

Notes

 

Item

Presenter

Notes

 

simultaneous file reads issue

JW

Done (pending any further improvements.)
Currently viewing the transfers in AAA, which has had this rolled out with proxy+ceph configuration/

 

Status of space reporting and tests on Alice dev gateway and setting up of a unified configuration.

 

https://stfc.atlassian.net/browse/XRD-21

unified tpc working

 

 

CMSD status

 

https://stfc.atlassian.net/browse/XRD-41

CC document in prep:

https://stfc.atlassian.net/wiki/spaces/GRIDPP/pages/136446019/High-level+XrootD+redirection+for+Echo?focusedCommentId=136118425

OPN IPs have been created (reused) for the pair of floating IP address (not yet behind the DNS alias). (for Tom)

Redirector nodes need their IP addresses to be changed to be in the OPN subnet. (For Fabric, Tom follow).
keepalived configuration
new alias for the endpoint needed ?

 

Monitoring of memory spikes

 

script developed, setting up sandbox with cron job
memory spikes caused by spikes in number of connections , no memory leak found

 

 

 

GGUS:

Deletion problem at RAL

Slow stat calls at RAL

Problem accessing some LHCb files at RAL

Site reports

 Action items

  • Create Jira for Checksumming updates for 3.7+ (especially for Rocky 9 releases).

 

 Decisions