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Message from discussion CT take a long time to warm up
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Roberto Ostinelli  
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 More options Oct 10 2012, 11:39 pm
From: Roberto Ostinelli <robe...@widetag.com>
Date: Wed, 10 Oct 2012 20:38:51 -0700
Local: Wed, Oct 10 2012 11:38 pm
Subject: Re: [erlang-questions] CT take a long time to warm up
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Ok,

I finally managed to track this down but I'm totally unsure why this
happens. Motiejus, you were right.

When I run REBAR, the process automountd tries to connect on port 111
(sunrpc) on my local NAT. When it times out, the CT tests are actually run.
If I simply block this process with a firewall, tests start immediately.

I'm at disposal if anyone wants to dig further (tuncer?)

r.

On Wed, Sep 26, 2012 at 1:38 PM, Tuncer Ayaz <tuncer.a...@gmail.com> wrote:
> On Wed, Sep 26, 2012 at 9:44 PM, Motiejus Jakštys wrote:
> > On Wed, Sep 26, 2012 at 8:40 PM, Roberto Ostinelli wrote:
> > > > How do you run it? Consistent 20 seconds sounds like a DNS
> > > > timeout issue (stab in the dark).

> > > rebar ct_suites=mymodule

> > Hi,
> > adding the list.

> > Please do

> > $TRACE_F rebar ct_suites=mymodule

> Make that

> $TRACE_F rebar suites=mymodule

> and also consider running rebar with fprof:

> $TRACE_F rebar -p suites=mymodule
> or
> $TRACE_F rebar --profile suites=mymodule

> , but make sure you update rebar first to avoid a faulty
> call to fprof:apply/2.

> If it's caused by name lookup, you can try a custom ERL_INETRC file:
> http://www.erlang.org/doc/apps/erts/inet_cfg.html

> > and replace $TRACE_F with Max OS C equivalent of "strace -f".
> > Then see what it does just before the 20 second pause.

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