From: Eric Wong <normalperson@yhbt.net>
To: raindrops@librelist.com
Subject: Re: queued is always 0
Date: Thu, 1 Jul 2010 19:51:44 -0700 [thread overview]
Message-ID: <20100702025144.GA22762@dcvr.yhbt.net> (raw)
In-Reply-To: AANLkTinP5fBfcRa6Y3-MrMzDqjRRrgEOIunvn_h7q2WS@mail.gmail.com
Ryan King <ryan@twitter.com> wrote:
> On Thu, Jul 1, 2010 at 3:18 AM, Eric Wong <normalperson@yhbt.net> wrote:
> > Now that I think about it, it could be possible you're making a small
> > mistake in your linux-tcp-listener-stats invocation.
> >
> > Unicorn listens to all interfaces on a specified port by default (e.g.
> > 0.0.0.0:8080) So you would need to point linux-tcp-listener-stats.rb
> > to "0.0.0.0:8080" and not "127.0.0.1:8080" (which may provide you
> > with a list of _client_ sockets, not server ones).
>
> God, you're right. This is the problem. When I switch the invocation
> it works as expected.
Awesome. I've just pushed out a patch to raindrops.git to have
linux-tcp-listener-stats warn if it detects a listener on
0.0.0.0:#{port} but was passed an address of 127.X.Y.Z:#{port}.
Hopefully it's less confusing for future users.
I didn't want to make (currently) invalid addresses raise an exception,
since sometimes I run the script before starting the server or leave
it running when I shut the server down.
> > It looks like raindrops may double count localhost connections
> > because the client and server address are on the same host, and
> > I seem to recall tcpdiag not providing a way to filter those...
> > (It is very late at night for me, so I'll look at this again
> > sometime tomorrow.)
>
> In this test, its counting the ab connections on 127.0.0.1, but the
> server connections on 0.0.0.0.
Yup, the counts look correct to each address. I was tired last
night :x
--
Eric Wong
prev parent reply other threads:[~2010-07-02 2:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-29 0:26 queued is always 0 Ryan King
2010-06-29 0:50 ` Eric Wong
2010-06-30 1:12 ` Ryan King
2010-06-30 2:45 ` Eric Wong
2010-06-30 18:51 ` Ryan King
2010-06-30 23:18 ` Ryan King
2010-07-01 10:18 ` Eric Wong
2010-07-01 18:37 ` Ryan King
2010-07-02 2:51 ` Eric Wong [this message]
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