From Earlham CS Department
Jump to navigation Jump to search
=========== BACKUP YOUR DATA! =============
 As always, backup your data before
 upgrading. If the upgrade leads to a higher
 minor revision (e.g. 7.3.x -> 7.4), a dump
 and restore of all databases is
 required. This is *NOT* done by the port!

 Press ctrl-C *now* if you need to pg_dump.

cd /usr/ports/databases/postgresql82-server/

make; make install

this will instal both the server and client ports

The port is set up to use autovacuum for new databases, but you might also want to vacuum and perhaps backup your database regularly. There is a periodic script, /usr/local/etc/periodic/daily/502.pgsql, that you may find useful. You can use it to backup and perfom vacuum on all databases nightly. Per default, it perfoms `vacuum analyze'. See the script for instructions. For autovacuum settings, please review ~pgsql/data/postgresql.conf.

To allow many simultaneous connections to your PostgreSQL server, you should raise the SystemV shared memory limits in your kernel. Here are example values for allowing up to 180 clients (configurations in postgresql.conf also needed, of course):

 options         SYSVSHM
 options         SYSVSEM
 options         SYSVMSG
 options         SHMMAXPGS=65536
 options         SEMMNI=40
 options         SEMMNS=240
 options         SEMUME=40
 options         SEMMNU=120

If you plan to access your PostgreSQL server using ODBC, please consider running the SQL script /usr/local/share/postgresql/odbc.sql to get the functions required for ODBC compliance.

Please note that if you use the rc script,

/usr/local/etc/rc.conf/postgresql, to initialize the database, unicode (UTF-8) will be used to store character data by default. Set postgresql_initdb_flags or use login.conf settings described below to alter this behaviour. See the start rc script for more info.

To set limits, environment stuff like locale and collation and other things, you can set up a class in /etc/login.conf before initializing the database. Add something similar to this to /etc/login.conf:



and run `cap_mkdb /etc/login.conf'.

Then add 'postgresql_class="postgres"' to /etc/rc.conf.

To initialize the database, run

 /usr/local/etc/rc.d/postgresql initdb

You can then start PostgreSQL by running:

 /usr/local/etc/rc.d/postgresql start

For postmaster settings, see ~pgsql/data/postgresql.conf

NB. FreeBSD's PostgreSQL port logs to syslog by default

   See ~pgsql/data/postgresql.conf for more info

To run PostgreSQL at startup, add 'postgresql_enable="YES"' to /etc/rc.conf

===> Installing rc.d startup script(s)

===> Registering installation for postgresql-server-8.2.4_1


     This port has installed the following files, which may act as network
     servers and may therefore pose a remote security risk to the system.


     This port has installed the following startup scripts, which may cause
     these network services to be started at boot time.


     If there are vulnerabilities in these programs there may be a security
     risk to the system. FreeBSD makes no guarantee about the security of
     ports included in the Ports Collection. Please type 'make deinstall'
     to deinstall the port if this is a concern.

     For more information, and contact details about the security
     status of this software, see the following webpage:

- Run /usr/local/etc/rc.d/postgresql initdb to initialize the DB - vi /usr/local/pgsql/data/pg_hba.conf and add the following

local   all         all                                 trust
host    all         all            trust
host    all         all         trust
host    all         all         trust
hostssl all         all         trust
hostssl all         all        trust
hostssl all         all         trust

- vi /usr/local/pgsql/data/postgresql.conf (check cluster config)

- vi /usr/local/pgsql/data/postmaster.opts and add

/cluster/usr-local/bin/postgres -D /usr/local/pgsql/data