Paul Schmehl wrote:
--On June 10, 2009 7:09:17 PM -0700 Drew Tomlinson
<d...@mykitchentable.net> wrote:
All I want to do is create a script within the rc.d framework that
runs
"/usr/local/urchin/bin/urchinctl start" when the system boots and
"/usr/local/urchin/bin/urchinctl stop" when the system shuts down.
Following the examples in the guide mentioned above, here is my
attempt
at that file:
# !/bin/sh
# PROVIDE: urchin
# REQUIRE: NETWORKING
# KEYWORD: shutdown
#
# Add the following line to /etc/rc.conf to enable urchin:
# urchin_enable="YES" (bool): Set to "NO" by default.
# Set it to "YES" to enable urchin.
. /etc/rc.subr
name="urchin"
rcvar=`set_rcvar`
command="/usr/local/urchin/bin/urchinctl "
eval "${rcvar}=\${${rcvar}:-'NO'}"
load_rc_config $name
run_rc_command "$1"
I have also ensured that 'urchin_enable="YES"' is in /etc/rc.conf.
However when I run the rc.d script, the urchinctl appears to run but
doesn't like whatever arguments that are passed. See this output:
urchin# ./urchin-server start
Starting urchin.
Usage: urchinctl [-v] [-h] [-e] [-s|-w] [-p port] action
<snipped rest of options already shown above>
I'm sure I'm missing some simple concept. I'd really appreciate a
kick
in the right direction.
Where is urchin located? /usr/local/bin? /usr/local/bin/urchin/bin?
Or somewhere else? Is urchinctl a shell or perl script?
There is no actual "urchin" as far as I know. The control file is
/usr/local/urchin/bin/urchinctl. It is a executable file:
urchin# file /usr/local/urchin/bin/urchinctl
/usr/local/urchin/bin/urchinctl: ELF 32-bit LSB executable, Intel 80386,
version 1 (FreeBSD), statically linked, stripped
After running "/usr/local/urchin/bin/urchinctl start", I have these
related processes:
urchin# ps acux | grep urchin
root 70937 0.0 0.0 3184 1996 ?? Ss 7:00PM 0:00.01
urchinwebd
nobody 70938 0.0 0.0 3184 2000 ?? I 7:00PM 0:00.00
urchinwebd
nobody 70939 0.0 0.0 3184 2000 ?? I 7:00PM 0:00.00
urchinwebd
nobody 70940 0.0 0.0 3184 2000 ?? I 7:00PM 0:00.00
urchinwebd
nobody 70941 0.0 0.0 3184 2000 ?? I 7:00PM 0:00.00
urchinwebd
nobody 70942 0.0 0.0 3184 2000 ?? I 7:00PM 0:00.00
urchinwebd
nobody 70944 0.0 0.0 1460 720 ?? Ss 7:00PM 0:00.03 urchind
nobody 70946 0.0 0.0 1332 668 ?? Is 7:00PM 0:00.51 urchind
And conversely, "/usr/local/urchin/bin/urchinctl stop" removes all of
the above processes.
In your script command is path_to_urchinctl. rc.subr will look for a
process named urchinctl and a pidfile named urchinctl.pid. It appears
that neither will be found, so the script can't stop or restart the
processes, because it doesn't know the pid and therefore the process
that it needs to kill. That doesn't explain why it won't start the
processes though. I *think* you need to name the script urchin rather
than urchin-server, but I can't test that.
The rc script name does not seem to matter.
To fix the pid problem, rc.subr offers some optional statements that,
with the proper arguments, can overcome the problem. You'll have to
read man rc.subr and test it to figure out what works, but here's an
example that might work:
pidfile="/var/run/urchinwebd.pid
check_pidfile="${pidfile}
The problem here is that urchinctl does not write a pid file by default
and I can't figure out how to make it do so.
However in reading man rc.subr, I found argument_cmd that works for me.
By setting argument_cmd, I can override the default methods called by
run_rc_command. Thus I set these three lines:
start_cmd="/usr/local/urchin/bin/urchinctl start"
stop_cmd="/usr/local/urchin/bin/urchinctl stop"
status_cmd="/usr/local/urchin/bin/urchinctl status"
Originally, I used "$1" instead of start, stop, and status. However
this had the effect of making "restart" restart twice, once for the
start method and once for the stop method because
"/usr/local/urchin/bin/urchinctl restart" was being run each time.
If that does work, your script should at least be able to report the
status (running or not).
I also had to set the procname variable to make the status method
available. In my case, it didn't matter to what it was set as the
urchinctl command handled the actual status reporting.
I'm assuming that, because root is running the lowest numbered
process, killing that process will kill all the children as well.
Killing the root process killed all the urchinwebd processes but left
the urchind processes hanging around. But no matter, I got things working.
Thanks for your help!
Drew
--
Be a Great Magician!
Visit The Alchemist's Warehouse
http://www.alchemistswarehouse.com
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