Support reading from UNIX socket about haproxy_exporter HOT 8 CLOSED

I'm open to support unix socket as well, but please be aware that these arguments are nonsense. Whether to fetch the CSV formatted stats via HTTP or unix socket doesn't make any difference. It's just different protocols. I guess the point they're trying to make is "just looking at the stats page every couple of minutes is not enough". And no shit, that's why we wrote Prometheus and store the results.

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There are some additional stats that'd be useful that are only available via the unix socket.

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@grobie I'm not sure (because I haven't bothered to try yet), but we're running HAProxy through consul-template (similar tohttps://github.com/SirIle/miniboxes/tree/master/minihaproxy) , which restarts HAProxy rather often (using the -sf command line option), and stats on the http stats page are zeroed every time.

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This will be the same when using a unix socket. HAProxy does not support
config reloading. Changing the config will always result in spawning a new
process and terminating the existing one. Stats are kept in memory per
process (when running with nbproc > 1 you'll need one exporter per process)
and not shared in any form.

On Fri, Apr 29, 2016 at 12:56 AM, Sune Keller [email protected]
wrote:

@grobie https://github.com/grobie I'm not sure (because I haven't
bothered to try yet), but we're running HAProxy through consul-template
(similar tohttps://github.com/SirIle/miniboxes/tree/master/minihaproxy) ,
which restarts HAProxy rather often (using the -sf command line option),
and stats on the http stats page are zeroed every time.

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#53 (comment)

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@brian-brazil I guess you mean show info? I've wished for these information quite a few times indeed. Show pools maybe as well.

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Implemented in #58 (by accident, actually). This implementation doesn't give the additional stats, but maybe it's a start.

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@grobie @brian-brazil for my information, any hints on the show info/pools/.. capability?
Do you have/use any forks or PR that handle that ?

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@pierrecdn We're only using the standard haproxy_exporter at SoundCloud.

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