2023-06-22 Meeting Notes

 Date

Jun 22, 2023

 Participants

  • @Thomas, Jyothish (STFC,RAL,SC)

  • @Alexander Rogovskiy

  • @Thomas Birkett

  • @James Walder

  • Lancaster: Gerard,, Steven

Apologies:

 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

Recent sandbox’s for review / deployments:

 

Item

Presenter

Notes

 

Item

Presenter

Notes

 

ReadV rollout status

 

June 2023: Vector Read rollout (with XCache)
Large-scale vector read patch: notes

2017-xma seem to have issues (possibly IOPs limit) (~30% failure rate on vread test) (memory allocation errors)

2018>should be fine according to preliminary test, more data incoming Monday

likely to move ahead on deployment ~Tuesday

2017 would be retired ~soon

Echo was fine

5.3.3 to 5.5.4 includes more changes that might be causing the 2017 failure (apart from vread)

 

EBUSY in readV requests (TBD)

 

https://stfc.atlassian.net/browse/XRD-64

Actions to analysis the existing behaviour with the read request (where EBUSY) is already handled.

 

SEGV investigations with -S multi-stream flags

 

 

 

CMSD status

 

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

single slash behaviour with cmsd redirector

 

ATLAS Token testing

 

James working on functional tests for ATLAS testing

 

 

on GGUS:

Site reports

 Action items

  •  

 

 Decisions

  1. Continue