Two Postfix instances
in [Postfix]
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From: Dragan Zubac on 16 Jun 2010 05:41 Hello I have two Postfix instances with configuration folders : /etc/postfix /etc/postfix-second I start both instances by issuing the following commands : postfix -c /etc/postfix start postfix -c /etc/postfix-second start I'm about to write a start/stop script for both instances,but I have a problem because both of them using the following executable file : /usr/lib/postfix/master so when I type something like : home:/etc/rc.d # pgrep -u root master 29967 1567 I got both instances pid files : lsof -p 1567|grep pid master 1567 root 9uW REG 8,7 33 67550 /var/spool/postfix-second/pid/master.pid home:/etc/rc.d # lsof -p 29967|grep pid master 29967 root 9uW REG 8,7 33 83715 /var/spool/postfix/pid/master.pid Is there any Postfix way of uniquely distinguish between running multiply instances of Postfix ? Or maybe some configurable option how to name the 'master' process ,like 'master-second' ,'master-third' ,thus be able to uniquely distinguish between them ? Sincerely Dragan Zubac
From: Wietse Venema on 16 Jun 2010 06:48 Dragan Zubac: > Hello > > I have two Postfix instances with configuration folders : > > /etc/postfix > /etc/postfix-second > > I start both instances by issuing the following commands : > > postfix -c /etc/postfix start > postfix -c /etc/postfix-second start > > I'm about to write a start/stop script for both instances,but I have a > problem because both of them using the following executable file : > > /usr/lib/postfix/master > > so when I type something like : > > home:/etc/rc.d # pgrep -u root master > 29967 > 1567 > > I got both instances pid files : > > lsof -p 1567|grep pid > master 1567 root 9uW REG 8,7 33 67550 > /var/spool/postfix-second/pid/master.pid > > home:/etc/rc.d # lsof -p 29967|grep pid > master 29967 root 9uW REG 8,7 33 83715 > /var/spool/postfix/pid/master.pid > > Is there any Postfix way of uniquely distinguish between running > multiply instances of Postfix ? Use the CONTENT of the PID files. Wietse
From: Victor Duchovni on 16 Jun 2010 08:57 On Wed, Jun 16, 2010 at 11:41:12AM +0200, Dragan Zubac wrote: > I start both instances by issuing the following commands : > > postfix -c /etc/postfix start > postfix -c /etc/postfix-second start Each is stopped by issuing: postfix -c "$config_directory" stop or via the postmulti(1) wrapper with Postfix 2.6 or later, which can stop/start multiple instances via just "postfix start" and "postfix stop" (no -c arguments). Recent Postfix versions also support "postfix status" which shows the pid of each instance, (but non-syslog output is suppressed when not a terminal...) > Is there any Postfix way of uniquely distinguish between running > multiply instances of Postfix ? Or maybe some configurable option how to > name the 'master' process ,like 'master-second' ,'master-third' ,thus be > able to uniquely distinguish between them ? postmulti -i postfix-first -p start postmulti -i postfix-first -p status postmulti -i postfix-first -p stop postmulti -i postfix-second -p start postmulti -i postfix-second -p status postmulti -i postfix-second -p stop -- Viktor.
From: Dragan Zubac on 16 Jun 2010 10:26 Hello Thank You all for hints. I did something else. ln -s /usr/lib/postfix/master /usr/lib/postfix/master-second Edit file : /etc/postfix-second/postfix-script , I changed all 'master' to 'master-second',so : postfix -c /etc/postfix-second stop will not kill first instance only the second one. Now each of instances has a different process name and can be matched uniquely. Once I upgrade the Postfix,I'll change this scenario and use 'postmulti' feature. Sincerely Dragan On 06/16/10 14:57, Victor Duchovni wrote: > On Wed, Jun 16, 2010 at 11:41:12AM +0200, Dragan Zubac wrote: > > >> I start both instances by issuing the following commands : >> >> postfix -c /etc/postfix start >> postfix -c /etc/postfix-second start >> > Each is stopped by issuing: > > postfix -c "$config_directory" stop > > or via the postmulti(1) wrapper with Postfix 2.6 or later, which > can stop/start multiple instances via just "postfix start" and > "postfix stop" (no -c arguments). Recent Postfix versions also > support "postfix status" which shows the pid of each instance, > (but non-syslog output is suppressed when not a terminal...) > > >> Is there any Postfix way of uniquely distinguish between running >> multiply instances of Postfix ? Or maybe some configurable option how to >> name the 'master' process ,like 'master-second' ,'master-third' ,thus be >> able to uniquely distinguish between them ? >> > postmulti -i postfix-first -p start > postmulti -i postfix-first -p status > postmulti -i postfix-first -p stop > > postmulti -i postfix-second -p start > postmulti -i postfix-second -p status > postmulti -i postfix-second -p stop > >
From: Wietse Venema on 16 Jun 2010 10:39 Dragan Zubac: > Hello > > Thank You all for hints. > I did something else. > > ln -s /usr/lib/postfix/master /usr/lib/postfix/master-second This is not needed. Without making ANY changes, "postfix -c /etc/postfix-second stop" will stop only the second instance. > Edit file : /etc/postfix-second/postfix-script , I changed all 'master' > to 'master-second',so : > > postfix -c /etc/postfix-second stop This is not needed. Without making ANY changes, "postfix -c /etc/postfix-second stop" will stop only the second instance. Wietse
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