Monitoring of sub-second time transfers

[kazeborja]

Hi all,

Following a new XRootD monitoring implementation for OSG/WLCG it looks like the XRootD monitoring streams might be rounding the time of the transfer to 0 if the transfer finishes under 1 second.

Reading the documentation it's understood that resolution timing is in seconds, the question is:

Is it possible to configure the XRootD servers to provide a better resolution somehow, in case it's not, is there a possibility to have this improved?

Please let me know if further information is needed to understand the issue.

Thanks in advance.
Borja

[abh3]

I suppose the fastest bypass is to assume it's about a second if the value is 0. The second fastest solution is to simply round up to a second. Doing anything more is somewhat disruptive since collectors likely assume there are no fractional digits. Something to discuss in the upcoming XRootD workshop https://indico.cern.ch/event/875381/

[kazeborja]

Thanks for the prompt reply, I agree any possible change to the format might be disruptive, still good to know it'll be discussed.

Anything that's rounding can be a good workaround but won't provide 100% correct monitoring data, so it will probably come with other implications