Installing postgres & postgis

Installing
Postgres & Postgis
Mostly on a Mac,
but also on Linux
& Windows
John Ashmead

Why?
•Building a mapping website!
•Wanted Postgres 9.2 to go pure

Javascript: client, server (node.js), &
database!!

•And wanted latest & greatest mapping
Installing Postgres & PostGIS on a Mac - November 20th, 2012

http://www.ashmeadsoftware.com

Objective
•Postgres 9.2!
•Postgis 2.0 http://www.postgis.org/!
•psql, pgAdmin3, & phpPgAdmin!
•Node.js!
•PL/Javascript


Stack Builder



Strategies
•EnterpriseDB - provides Stack Builder

not currently current, but good starting
point!

•DMGs - not always current, but good
intel!

•Open source: ﬁnk, homebrew,

macports - can be hacked, instructive



EnterpriseDB

% sudo vi /etc/sysctl.conf
!
On a MacBook Pro with 2GB of RAM, the author's sysctl.conf contains:
!
kern.sysv.shmmax=1610612736
kern.sysv.shmall=393216
kern.sysv.shmmin=1
kern.sysv.shmmni=32
kern.sysv.shmseg=8
kern.maxprocperuid=512
kern.maxproc=2048


Kyngchaos
•Stackbuilder!
•Not quite current: when did ﬁrst, was
Postgres 9.1, PostGIS 1.5. (Now is 9.1,
but 2.0.0)!

•But lots of good information, i.e.

PostGIS has lots of dependencies: geos,
proj4, some others



Xcode



Open source
packagers
•Fink - precompiled binaries preferred. Not
as up to date. Not current enough.!

•Homebrew - easier to use. On github. Uses
ruby. Less intrusive. Assumes single user.!

•Macports - tends to pull a lot of stuff down.
Possibly more general. Used here. http://
www.macports.org/



Portfiles
https://trac.macports.org/browser/trunk/dports/databases/
postgis2/Portfile
variant postgresql92
description {Builds with postgresql
9.2}
conflicts postgresql90 postgresql91 {
depends_lib-append
port:postgresql92
archcheck.files-append lib/postgresql92/libpq.dylib
configure.args-append
--libdir=${prefix}/lib/postgresql92
--with-pgconfig=${prefix}/lib/
postgresql92/bin/pg_config
build.args-append
PGSQL_DOCDIR=${destroot}${prefix}/
share/doc/postgresql91
PGSQL_MANDIR=${destroot}${prefix}/
share/man
}
!



Port commands
port list > /dev/null
Warning: port definitions are more than two weeks old, consider
using selfupdate
port selfupdate
[ port upgrade postgresql92 skipped ]
port -v install postgresql91 +perl +tcl +python
port -v install postgresql91-doc
port install pgAdmin3 +postgresql91 +with_postgresql91
port install postgis2 +postgresql91 +raster +gui +topology



Daemondo
<key>ProgramArguments</key>
<array>
<string>/opt/local/bin/daemondo</string>
<string>--label=vm-pop3d</string>
<string>--start-cmd</string>
<string>/opt/local/sbin/vm-pop3d</string>
<string>-d</string>
<string>10</string>
<string>-t</string>
<string>600</string>
<string>;</string>
</array>



Launch Daemons



Processes
507 7714
1
0 5:22PM ??
0:00.04 /Library/
PostgreSQL/9.2/bin/postmaster -D/Library/PostgreSQL/9.2/data
507 7715 7714
0 5:22PM ??
0:00.00 postgres: logger
process
507 7717 7714
0 5:22PM ??
0:00.01 postgres:
checkpointer process
507 7718 7714
0 5:22PM ??
0:00.05 postgres: writer
process
507 7719 7714
0 5:22PM ??
0:00.03 postgres: wal
writer process
507 7720 7714
0 5:22PM ??
0:00.05 postgres:
autovacuum launcher process
507 7721 7714
0 5:22PM ??
0:00.07 postgres: stats
collector process
~



Profile variables
vi .profile
# to change back to Postgres 9.1, fix path & set PGPORT to 5432,
export PATH=".:/opt/local/lib/postgresql92/bin:/Library/
PostgreSQL/9.2/bin:$PATH”
!
export PGDATABASE=talkinvite
export PGUSER=talkinvite
export PGPORT=5433
vi apache/conf/httpd.conf
#
ServerRoot "/Library/PostgreSQL/EnterpriseDB-ApachePHP/apache"
# Listen: Allows you to bind Apache to specific IP addresses and/
#
Listen 8081
vi phpPgAdmin/conf/config.inc.php
# to change back to Postgres 9.1, fix path & set PGPORT to 5432,
// Database port on server (5432 is the PostgreSQL default)
// Using 5433 for Postgres 9.2
$conf['servers'][0]['port'] = 5433;


Verify
•Check psql, pgAgent3, pgPhpAdmin
(using apache)!

•Bounce box, make sure it comes back!
•Hand save some simple maps, then
recover



Linux/Parallels



Pre-Requisites
for PostGIS
•Obvious ones (database, compiler, …)!
•PROJ4 - makes round things ﬂat!
•GEOS - “fairly safe to upgrade”!
•LibXML2 - what may have broken!
•JSON-C - JSON support for GEO!
•GDAL - raster support


Of the 36 strategies,
running away is the best
•Loaded in Postgres 9.1, PostGIS 1.5!
•Tried upgrade to postGIS 2.0 using
various tricks on web. Kept hitting
failures, missing bits & so on, dead
parrots from previous runs, !

•Ask Bruce & Jim


Windows/
VMWare



Download latest

Fixed www/phppgadmin/conf/config.inc.php to use port 5433
Ran “select

version()”

to get:

select postgis_full_version()

->
POSTGIS="2.0.1 r9979" GEOS="3.3.5-CAPI-1.7.5" PROJ="Rel.
4.8.0, 6 March 2012" GDAL="GDAL 1.9.1, released 2012/05/15"
LIBXML="2.7.8" LIBJSON="UNKNOWN" RASTER


Node.js



Fun with maps
•
•
•
MVC & mapping libraries
•
A plan, ney, a map
•

PostGIS
Javascript & node
Open source maps - MapServer, PostGIS



Checklist
•Software downloads: node, npm, express, … !
•Setup hackable app: my what lovely stack traces
we are showing today…!

•Verify hackable’s access to postgres!
•Find & load in initial spatial data!
•Manage spatial data (leaﬂet)!
•Create MVC wrappers for all this GIS goodness



Recommendations
(your mileage may vary)
•Go with packages,

defaults when you can!

•If you can’t, build up in
layers.!

•Trust but verify!
•Learn a bit more than

you need to; ask around!


•Keep a log


Installing postgres & postgis

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