Обсуждение: 9.4 and centos/yum multiversion installs

I have a CentOS 6 server thats already running 9.0, ... 9.3 for development.

I added 9.4 to it by ...
     yum install
http://yum.postgresql.org/9.4/redhat/rhel-6-x86_64/pgdg-centos94-9.4-1.noarch.rpm
     yum install postgresql94{,-devel,-server,-contrib}

I created /etc/sysconfig/pgsql/postgresql-9.4 with...
     PGENGINE=/usr/pgsql-${PGMAJORVERSION}/bin
     PGPORT=5436
     PGDATA=/var/lib/pgsql/${PGMAJORVERSION}/data
     PGLOG=/var/lib/pgsql/${PGMAJORVERSION}/pgstartup.log

(same as all the others except a unique port)
and initdb via..
     service postgresql-9.4 initdb

all good so far.  but when I ...

     service postgresql-9.4 start

it fails, leaving the following in pgstartup.log...

     < 2015-09-29 09:38:15.270 PDT >LOG:  could not bind IPv6 socket:
Address already in use
     < 2015-09-29 09:38:15.270 PDT >HINT:  Is another postmaster already
running on port 5432? If not, wait a few seconds and retry.
     < 2015-09-29 09:38:15.270 PDT >LOG:  could not bind IPv4 socket:
Address already in use
     < 2015-09-29 09:38:15.270 PDT >HINT:  Is another postmaster already
running on port 5432? If not, wait a few seconds and retry.
     < 2015-09-29 09:38:15.270 PDT >WARNING:  could not create listen
socket for "localhost"
     < 2015-09-29 09:38:15.270 PDT >FATAL:  could not create any TCP/IP
sockets

does the 9.4 yum install no longer support using the sysconfig settings
fragments ?  I see what looks like the correct shell code for it in
/etc/rc.d/init.d/postgresql-9.4 ...

     # Override defaults from /etc/sysconfig/pgsql if file is present
     [ -f /etc/sysconfig/pgsql/${NAME} ] && . /etc/sysconfig/pgsql/${NAME}


....arrrrgh, comment in /etc/rc.d/init.d/postgresql-9.4 would suggest so...


     # Version 9.4.0 Devrim Gunduz <devrim@gunduz.org>
     # Remove PGPORT variable

so... how do you run multiple versions??

--
john r pierce, recycling bits in santa cruz

does the 9.4 yum install no longer support using the sysconfig settings fragments ?  I see what looks like the correct shell code for it in /etc/rc.d/init.d/postgresql-9.4 ...

    # Override defaults from /etc/sysconfig/pgsql if file is present
    [ -f /etc/sysconfig/pgsql/${NAME} ] && . /etc/sysconfig/pgsql/${NAME}


....arrrrgh, comment in /etc/rc.d/init.d/postgresql-9.4 would suggest so...


    # Version 9.4.0 Devrim Gunduz <devrim@gunduz.org>
    # Remove PGPORT variable

so... how do you run multiple versions??

and apparently the answer is, you set pgport in postgresql.conf rather than via shell.  ugh.   means you can't tell the port from ps...

$ ps auxww |grep postmaster
postgres  3291  0.0  0.0 1288244 57876 ?       S    Aug30  13:31 /usr/pgsql-9.1/bin/postmaster -p 5433 -D /var/lib/pgsql/9.1/data
postgres  3333  0.0  0.0 2352980 76048 ?       S    Aug30  21:28 /usr/pgsql-9.2/bin/postmaster -p 5432 -D /var/lib/pgsql/9.2/data
postgres  3442  0.0  0.0 2352848 76060 ?       S    Aug30  10:57 /usr/pgsql-9.3/bin/postmaster -p 5435 -D /var/lib/pgsql/9.3/data
postgres 44139  0.0  0.0 324628 15084 ?        S    10:12   0:00 /usr/pgsql-9.4/bin/postmaster -D /var/lib/pgsql/9.4/data

-- 
john r pierce, recycling bits in santa cruz