3 This page contains generic installation instructions for Nominatim and its
4 prerequisites. There are also step-by-step instructions available for
5 the following operating systems:
7 * [Ubuntu 18.04](../appendix/Install-on-Ubuntu-18.md)
8 * [Ubuntu 16.04](../appendix/Install-on-Ubuntu-16.md)
9 * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
11 These OS-specific instructions can also be found in executable form
12 in the `vagrant/` directory.
14 Users have created instructions for other frameworks. We haven't tested those
15 and can't offer support.
17 * [Docker](https://github.com/mediagis/nominatim-docker)
18 * [Docker on Kubernetes](https://github.com/peter-evans/nominatim-k8s)
19 * [Ansible](https://github.com/synthesio/infra-ansible-nominatim)
27 * [cmake](https://cmake.org/)
28 * [libxml2](http://xmlsoft.org/)
29 * a recent C++ compiler
31 Nominatim comes with its own version of osm2pgsql. See the
32 [osm2pgsql README](https://github.com/openstreetmap/osm2pgsql/blob/master/README.md#building)
33 for additional dependencies required for compiling osm2pgsql.
37 * [behave](http://pythonhosted.org/behave/)
38 * [Psycopg2](https://initd.org/psycopg)
39 * [nose](https://nose.readthedocs.io)
40 * [phpunit](https://phpunit.de)
42 For running Nominatim:
44 * [PostgreSQL](https://www.postgresql.org) (9.3 or later)
45 * [PostGIS](https://postgis.org) (2.2 or later)
46 * [PHP](https://php.net) (7.0 or later)
48 * PHP-intl (bundled with PHP)
49 * a webserver (apache or nginx are recommended)
51 For running continuous updates:
53 * [pyosmium](https://osmcode.org/pyosmium/) (with Python 3)
57 A minimum of 2GB of RAM is required or installation will fail. For a full
58 planet import 64GB of RAM or more are strongly recommended. Do not report
59 out of memory problems if you have less than 64GB RAM.
61 For a full planet install you will need at least 800GB of hard disk space
62 (take into account that the OSM database is growing fast). SSD disks
63 will help considerably to speed up import and queries.
65 Even on a well configured machine the import of a full planet takes
66 at least 2 days. Without SSDs 7-8 days are more realistic.
68 ## Setup of the server
72 You might want to tune your PostgreSQL installation so that the later steps
73 make best use of your hardware. You should tune the following parameters in
74 your `postgresql.conf` file.
77 maintenance_work_mem = (10GB)
78 autovacuum_work_mem = 2GB
80 effective_cache_size = (24GB)
81 synchronous_commit = off
82 checkpoint_segments = 100 # only for postgresql <= 9.4
83 max_wal_size = 1GB # postgresql > 9.4
84 checkpoint_timeout = 10min
85 checkpoint_completion_target = 0.9
87 The numbers in brackets behind some parameters seem to work fine for
88 64GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
89 means that PostgreSQL needs to run checkpoints less often but it does require
90 the additional space on your disk.
92 For the initial import, you should also set:
95 full_page_writes = off
97 Don't forget to reenable them after the initial import or you risk database
98 corruption. Autovacuum must not be switched off because it ensures that the
99 tables are frequently analysed.
103 The `website/` directory in the build directory contains the configured
104 website. Include the directory into your webbrowser to serve php files
107 #### Configure for use with Apache
109 Make sure your Apache configuration contains the required permissions for the
110 directory and create an alias:
112 <Directory "/srv/nominatim/build/website">
113 Options FollowSymLinks MultiViews
114 AddType text/html .php
115 DirectoryIndex search.php
118 Alias /nominatim /srv/nominatim/build/website
120 `/srv/nominatim/build` should be replaced with the location of your
123 After making changes in the apache config you need to restart apache.
124 The website should now be available on http://localhost/nominatim.
126 #### Configure for use with Nginx
128 Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
130 By default php listens on a network socket. If you want it to listen to a
131 Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
134 ; Comment out the tcp listener and add the unix socket
135 ;listen = 127.0.0.1:9000
136 listen = /var/run/php5-fpm.sock
138 ; Ensure that the daemon runs as the correct user
139 listen.owner = www-data
140 listen.group = www-data
143 Tell nginx that php files are special and to fastcgi_pass to the php-fpm
144 unix socket by adding the location definition to the default configuration.
146 root /srv/nominatim/build/website;
147 index search.php index.html;
148 location ~ [^/]\.php(/|$) {
149 fastcgi_split_path_info ^(.+?\.php)(/.*)$;
150 if (!-f $document_root$fastcgi_script_name) {
153 fastcgi_pass unix:/var/run/php5-fpm.sock;
154 fastcgi_index search.php;
155 include fastcgi.conf;
158 Restart the nginx and php5-fpm services and the website should now be available
159 at `http://localhost/`.
162 Now continue with [importing the database](Import-and-Update.md).