Date: Wed, 27 Jul 2005 00:40:19 -0700 From: Lei Sun <lei.sun@gmail.com> To: Glenn Dawson <glenn@antimatter.net> Cc: freebsd-questions@freebsd.org Subject: Re: how to run 2 instance of memcached from rc.conf? Message-ID: <d396fddf050727004062636577@mail.gmail.com> In-Reply-To: <6.1.0.6.2.20050727001634.1afcc400@cobalt.antimatter.net> References: <d396fddf05072623167eb3bb24@mail.gmail.com> <6.1.0.6.2.20050726233906.198d9de0@cobalt.antimatter.net> <d396fddf05072623597166282e@mail.gmail.com> <6.1.0.6.2.20050727001634.1afcc400@cobalt.antimatter.net>
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I did try this approach...
but no luck.=20
whenever I try to start the second one, it says the pid already exists.=20
I think is is because of run_rc_command in rc.subr, it somehow
records down the pid somewhere...
:(
any other good ideas?
Thanks
Lei
On 7/27/05, Glenn Dawson <glenn@antimatter.net> wrote:
> At 11:59 PM 7/26/2005, you wrote:
> >Yeah, the tricky part is not to what to do, but how to do it. I know I
> >need to configure 2 ip or 2 ports.
> >
> >As the memcached.sh is using run_rc_command, and somehow, even if when
> >I am giving it 2 arguments with different port, it still can only
> >start up 1 process instead of 2.
> >
> >So how do I use the same script to run 2 instance of memcached?
> >
> >Thanks in advance.
>=20
> There's probably other ways to do this, but this one works:
>=20
> create a second script called memcached2.sh in /usr/local/etc/rc.d with t=
he
> following contents:
>=20
> #!/bin/sh
> #
>=20
> # PROVIDE: memcached2
> # REQUIRE: NETWORKING
>=20
> #
> # Add the following lines to /etc/rc.conf to run memcached:
> #
> #memcached2_enable=3D"YES"
> #memcached2_flags=3D""
> #
> . /etc/rc.subr
>=20
> name=3D"memcached2"
> rcvar=3D`set_rcvar`
> command=3D/usr/local/bin/memcached2
> command_args=3D"-du nobody ${memcached2_flags}"
>=20
> load_rc_config $name
> run_rc_command "$1"
>=20
>=20
>=20
> Then, create a symlink that points memcached2 to memcachd:
>=20
> ln -s /usr/local/bin/memcached /usr/local/bin/memcached2
>=20
>=20
> then, you can use two sets of variables in /etc/rc.conf like:
>=20
> memcached_enable=3D"YES"
> memcached_flags=3D"-m 2 -l 10.1.1.245 -p 11211"
>=20
> memcached2_enable=3D"YES"
> memcached2_flags=3D"-m 2 -l 10.1.1.245 -p 11212"
>=20
>=20
> That worked for me on one of my test systems.
>=20
> -Glenn
>=20
>=20
> >Lei
> >
> >On 7/26/05, Glenn Dawson <glenn@antimatter.net> wrote:
> > > At 11:16 PM 7/26/2005, Lei Sun wrote:
> > > >Hi,
> > > >
> > > >I am trying to run 2 instance of memcached from rc.conf, but wheneve=
r
> > > >I try to start it the second time, it tells me that the instance is
> > > >already running.
> > > >
> > > >Please help...
> > >
> > > According to the documentation at http://www.danga.com/memcached runn=
ing
> > > more than one instance on the same machine is only helpful if you hav=
e more
> > > than 4GB of RAM.
> > >
> > > To load another instance, you just have to tell it to listen on a dif=
ferent
> > > port, or a different IP address (if the machine you're running it one=
has
> > > more than one IP).
> > >
> > > -Glenn
> > >
> > >
> > > >my rc.conf
> > > >--------------------------------------------
> > > >defaultrouter=3D"192.168.0.1"
> > > >hostname=3D"aphrodite.us.8po.com"
> > > >ifconfig_em0=3D"inet 192.168.0.200 netmask 255.255.255.0"
> > > >sshd_enable=3D"YES"
> > > >mysql_enable=3D"YES"
> > > >mysql_limits=3D"YES"
> > > >apache_enable=3D"YES"
> > > >memcached_enable=3D"YES"
> > > >memcached_flags=3D"-m 1024 -l 127.0.0.1 -p 11211"
> > > >-----------------------------------------------
> > > >
> > > >
> > > >my /usr/local/etc/rc.d/memcached.sh
> > > >----------------------------------------------
> > > >#!/bin/sh
> > > >#
> > > >
> > > ># PROVIDE: memcached
> > > ># REQUIRE: NETWORKING
> > > >
> > > >#
> > > ># Add the following lines to /etc/rc.conf to run memcached:
> > > >#
> > > ># memcached_enable=3D"YES"
> > > ># memcached_flags=3D""
> > > >#
> > > >. /etc/rc.subr
> > > >
> > > >name=3D"memcached"
> > > >rcvar=3D`set_rcvar`
> > > >command=3D/usr/local/bin/memcached
> > > >command_args=3D"-du nobody ${memcached_flags}"
> > > >
> > > >load_rc_config $name
> > > >run_rc_command "$1"
> > > >--------------------------------------------------
> > > >_______________________________________________
> > > >freebsd-questions@freebsd.org mailing list
> > > >http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > > >To unsubscribe, send any mail to
> > "freebsd-questions-unsubscribe@freebsd.org"
> > >
> > >
> >_______________________________________________
> >freebsd-questions@freebsd.org mailing list
> >http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.=
org"
>=20
>
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