[Galene] Re: Statistics [was: Installation Script]

[Alexandre IOOSS <erdnaxe@crans.org>]

On 4/12/21 4:42 PM, Juliusz Chroboczek wrote:
>> Would it be possible (if it is not already possible) to add these kind of
>> data/output in a log flat file ?
> 
> Similar things have been discussed before, see for example here:
> 
>    https://github.com/jech/galene/pull/23
> 
> The problem is that nobody seems to have a clear idea what statistics need
> to be provided, and how to provide statistics without sacrificing user
> privacy -- I administer three instances of Galène right now, and I don't
> want to know who is having a discussion with whom, it's none of my business.

What about showing on /stats:

  * Total number of users that joined a group since the instance started 
(incremental counter),
  * Total number of audio/video streams since the instance started,
  * Total connection to the TURN since the instance started,
  * Min/Max/Average RTT (this would be CPU heavy...?).

I believe we don't want to expose more as it would introduce privacy 
concerns.

> What is more, Galène is designed to scale well on multicore systems, and
> the patches to add statistics tend to introduce additional points of
> contention.  (Since Go doesn't provide either CPU-local or thread-local
> data, you'll need to implement sharding at the application level.)

`/stats` already exists. We could make it more easy to parse by a 
script. Do we need HTML on this page?

I am not really fan of having Galène pushing logs to a file, I would 
much rather keep the current "pull" system in which an admin has to go 
to `/stats`. It is then possible to fetch this page and save it to a log 
file (e.g. cron, systemd timer, monitoring system...).

Best,

-- 
Alexandre