Re: [gentoo-user] distcc: Am I doing this right

[Alex Schuster]

Michael Sullivan writes:

> > It's all explained here : http://www.gentoo.org/doc/en/distcc.xml
>
> I read the guide when I first set up distcc, but it didn't provide
> enough detail for me to understand.  I have two computers, a slow one
> and a fast one.  I would like the fast one to assist the slow one.  The
> fast machine's IP is 192.168.1.2, and the slow is 192.168.1.4.  On the
> fast one, I'm running /etc/init.d/distccd and it's /etc/conf.d/distccd
> looks like this:

[...]
> # Logging
> # You can change some logging options here:
> # --log-file FILE
> # --log-level LEVEL  [critical,error,warning, notice, info, debug]
> #
> # Leaving --log-file blank will log to syslog
> # example: --log-file /dev/null --log-level warning
> # example: --log-level critical
>
> DISTCCD_OPTS="${DISTCCD_OPTS} --log-level critical"

Until all is running fine, I suggest setting this to info or debug instead.

> DISTCCD_OPTS="${DISTCCD_OPTS} --allow 192.168.1.0/24"

Yup.

> The slow machine is also running /etc/init.d/distccd.

That does no harm, but is not necessary unless you also want the slow 
machine to help the fast one.

> Is this right?

Looks good to me.

Did you activate distcc on the slow client with 'distcc-config --set-hosts 
192.168.1.2'? This tells that all compilations should be done on the fast 
machine. If you like the slow machine to also do some of the work, the 
command could look like this: 'distcc-config --set-hosts "192.168.1.2 
192.168.1.4/1"', meaning that the slow one does one compilation at the time, 
while for the fast one there is no limit.
Adjust your MAKEOPTS in /etc/make.conf to something like the total number of 
cores plus one. And be sure you have distcc in your FEATURES.

Emerge something, and watch for "failed to distribute, compiling locally 
instead" error messages in the emerge output. If there are none, distcc 
seems to work.
And watch syslog on the fast machine, it should look like this (with log-
level set to notice):

Oct 17 15:30:43 [distccd] (dcc_job_summary) client: 192.168.2.35:38681 
COMPILE_OK exit:0 sig:0 core:0 ret:0 time:1295ms x86_64-pc-linux-gnu-gcc 
/var/tmp/ccache/sbc_primit.tmp.tanja.26261.i

	Wonko