Page Comparison

ReadV rollout status

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

EBUSY in readV requests (TBD)

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

SEGV investigations with -S multi-stream flags

CMSD status

single slash behaviour with cmsd redirector

“/” vs “//” issue:

• Characterise the behaviour

• Understand if this is something we need to provide some mitigating action on?

Options:

Sandbox updated to “latest and greatest”:
http://aquilon.gridpp.rl.ac.uk/sandboxes/diff.php?sandbox=jw-gateway-xrootd-cmsd

Contains working solution for / and // file access (but explicitly exporting the pool and /pool names.
Passed Andy H the config to spot any improvements, and to see if he can understand what’s happening.
Above sandbox contains best knowledge, pending tunings gains through testing.

Thomas, Jyothish (STFC,RAL,SC) idea to incorporate CMSD setup into xrootd / webdav alias is good idea:
however manager hosts don’t have relevant SANs:
                DNS:echo-manager01.gridpp.rl.ac.uk, DNS:rdr.echo.stfc.ac.uk

• Should we request new host certs ? And would these be all necessary ones:
  DNS:echo-manager01.gridpp.rl.ac.uk, DNS:rdr.echo.stfc.ac.uk
  and include also DNS:echo.stfc.ac.uk, DNS:*.echo.stfc.ac.uk,

Can continue with testing, etc. if we need to wait for these.