1 This page contains generic installation instructions for Nominatim and its
2 prerequisites. There are also step-by-step instructions available for
3 the following operating systems:
5 * [Ubuntu 16.04](../appendix/Install-on-Ubuntu-16.md)
6 * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
8 These OS-specific instructions can also be found in executable form
9 in the `vagrant/` directory.
17 * [cmake](https://cmake.org/)
18 * [libxml2](http://xmlsoft.org/)
19 * a recent C++ compiler
21 Nominatim comes with its own version of osm2pgsql. See the
22 osm2pgsql README for additional dependencies required for compiling osm2pgsql.
26 * [behave](http://pythonhosted.org/behave/)
27 * [Psycopg2](http://initd.org/psycopg)
28 * [nose](https://nose.readthedocs.io)
29 * [phpunit](https://phpunit.de)
31 For running Nominatim:
33 * [PostgreSQL](http://www.postgresql.org) (9.1 or later)
34 * [PostGIS](http://postgis.refractions.net) (2.0 or later)
35 * [PHP](http://php.net) (5.4 or later)
37 * PHP-intl (bundled with PHP)
38 * [PEAR::DB](http://pear.php.net/package/DB)
39 * a webserver (apache or nginx are recommended)
41 For running continuous updates:
43 * [pyosmium](http://osmcode.org/pyosmium/)
47 A minimum of 2GB of RAM is required or installation will fail. For a full
48 planet import 32GB of RAM or more strongly are recommended.
50 For a full planet install you will need about 600GB of hard disk space (as of
51 January 2017, take into account that the OSM database is growing fast). SSD disks
52 will help considerably to speed up import and queries.
54 On a 6-core machine with 32GB RAM and SSDs the import of a full planet takes
55 a bit more than 2 days. Without SSDs 7-8 days are more realistic.
62 You might want to tune your PostgreSQL installation so that the later steps
63 make best use of your hardware. You should tune the following parameters in
64 your `postgresql.conf` file.
67 maintenance_work_mem (10GB)
69 effective_cache_size (24GB)
70 synchronous_commit = off
71 checkpoint_segments = 100 # only for postgresql <= 9.4
72 checkpoint_timeout = 10min
73 checkpoint_completion_target = 0.9
75 The numbers in brackets behind some parameters seem to work fine for
76 32GB RAM machine. Adjust to your setup.
78 For the initial import, you should also set:
81 full_page_writes = off
83 Don't forget to reenable them after the initial import or you risk database
84 corruption. Autovacuum must not be switched off because it ensures that the
85 tables are frequently analysed.
89 The `website/` directory in the build directory contains the configured
90 website. Include the directory into your webbrowser to serve php files
93 ### Configure for use with Apache
95 Make sure your Apache configuration contains the required permissions for the
96 directory and create an alias:
98 <Directory "/srv/nominatim/build/website">
99 Options FollowSymLinks MultiViews
100 AddType text/html .php
101 DirectoryIndex search.php
104 Alias /nominatim /srv/nominatim/build/website
106 `/srv/nominatim/build` should be replaced with the location of your
109 After making changes in the apache config you need to restart apache.
110 The website should now be available on http://localhost/nominatim.
112 ### Configure for use with Nginx
114 Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
116 By default php listens on a network socket. If you want it to listen to a
117 Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
120 ; Comment out the tcp listener and add the unix socket
121 ;listen = 127.0.0.1:9000
122 listen = /var/run/php5-fpm.sock
124 ; Ensure that the daemon runs as the correct user
125 listen.owner = www-data
126 listen.group = www-data
129 Tell nginx that php files are special and to fastcgi_pass to the php-fpm
130 unix socket by adding the location definition to the default configuration.
132 root /srv/nominatim/build/website;
133 index search.php index.html;
134 location ~ [^/]\.php(/|$) {
135 fastcgi_split_path_info ^(.+?\.php)(/.*)$;
136 if (!-f $document_root$fastcgi_script_name) {
139 fastcgi_pass unix:/var/run/php5-fpm.sock;
140 fastcgi_index search.php;
141 include fastcgi.conf;
144 Restart the nginx and php5-fpm services and the website should now be available
145 at `http://localhost/`.
148 Now continue with [importing the database](Import-and-Update.md).