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 20.04](../appendix/Install-on-Ubuntu-20.md)
8 * [Ubuntu 18.04](../appendix/Install-on-Ubuntu-18.md)
9 * [CentOS 8](../appendix/Install-on-Centos-8.md)
10 * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
12 These OS-specific instructions can also be found in executable form
13 in the `vagrant/` directory.
15 Users have created instructions for other frameworks. We haven't tested those
16 and can't offer support.
18 * [Docker](https://github.com/mediagis/nominatim-docker)
19 * [Docker on Kubernetes](https://github.com/peter-evans/nominatim-k8s)
20 * [Ansible](https://github.com/synthesio/infra-ansible-nominatim)
28 * [cmake](https://cmake.org/)
29 * [expat](https://libexpat.github.io/)
30 * [proj](https://proj.org/)
31 * [bzip2](http://www.bzip.org/)
32 * [zlib](https://www.zlib.net/)
33 * [Boost libraries](https://www.boost.org/), including system and filesystem
34 * PostgreSQL client libraries
35 * a recent C++ compiler (gcc 5+ or Clang 3.8+)
37 For running Nominatim:
39 * [PostgreSQL](https://www.postgresql.org) (9.3 - 11)
40 * [PostGIS](https://postgis.org) (2.2 - 2.5)
41 * [Python 3](https://www.python.org/)
42 * [Psycopg2](https://initd.org/psycopg)
43 * [PHP](https://php.net) (7.0 or later)
45 * PHP-intl (bundled with PHP)
46 * a webserver (apache or nginx are recommended)
48 !!! danger "Important"
49 Postgresql 12+ and Postgis 3.0+ are known to cause performance issues. They are
50 not recommended for a production installation at the moment.
52 For running continuous updates:
54 * [pyosmium](https://osmcode.org/pyosmium/) (with Python 3)
58 * [behave](http://pythonhosted.org/behave/)
59 * [nose](https://nose.readthedocs.io)
60 * [phpunit](https://phpunit.de) >= 7.3
64 A minimum of 2GB of RAM is required or installation will fail. For a full
65 planet import 64GB of RAM or more are strongly recommended. Do not report
66 out of memory problems if you have less than 64GB RAM.
68 For a full planet install you will need at least 800GB of hard disk space
69 (take into account that the OSM database is growing fast). SSD disks
70 will help considerably to speed up import and queries.
72 Even on a well configured machine the import of a full planet takes
73 at least 2 days. Without SSDs 7-8 days are more realistic.
75 ## Setup of the server
79 You might want to tune your PostgreSQL installation so that the later steps
80 make best use of your hardware. You should tune the following parameters in
81 your `postgresql.conf` file.
84 maintenance_work_mem = (10GB)
85 autovacuum_work_mem = 2GB
87 effective_cache_size = (24GB)
88 synchronous_commit = off
89 checkpoint_segments = 100 # only for postgresql <= 9.4
90 max_wal_size = 1GB # postgresql > 9.4
91 checkpoint_timeout = 10min
92 checkpoint_completion_target = 0.9
94 The numbers in brackets behind some parameters seem to work fine for
95 64GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
96 means that PostgreSQL needs to run checkpoints less often but it does require
97 the additional space on your disk.
99 Autovacuum must not be switched off because it ensures that the
100 tables are frequently analysed. If your machine has very little memory,
101 you might consider setting:
103 autovacuum_max_workers = 1
105 and even reduce `autovacuum_work_mem` further. This will reduce the amount
106 of memory that autovacuum takes away from the import process.
108 For the initial import, you should also set:
111 full_page_writes = off
113 Don't forget to reenable them after the initial import or you risk database
119 The `website/` directory in the build directory contains the configured
120 website. Include the directory into your webbrowser to serve php files
123 #### Configure for use with Apache
125 Make sure your Apache configuration contains the required permissions for the
126 directory and create an alias:
128 <Directory "/srv/nominatim/build/website">
129 Options FollowSymLinks MultiViews
130 AddType text/html .php
131 DirectoryIndex search.php
134 Alias /nominatim /srv/nominatim/build/website
136 `/srv/nominatim/build` should be replaced with the location of your
139 After making changes in the apache config you need to restart apache.
140 The website should now be available on http://localhost/nominatim.
142 #### Configure for use with Nginx
144 Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
146 By default php listens on a network socket. If you want it to listen to a
147 Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
150 ; Comment out the tcp listener and add the unix socket
151 ;listen = 127.0.0.1:9000
152 listen = /var/run/php5-fpm.sock
154 ; Ensure that the daemon runs as the correct user
155 listen.owner = www-data
156 listen.group = www-data
159 Tell nginx that php files are special and to fastcgi_pass to the php-fpm
160 unix socket by adding the location definition to the default configuration.
162 root /srv/nominatim/build/website;
163 index search.php index.html;
165 try_files $uri $uri/ @php;
169 fastcgi_param SCRIPT_FILENAME "$document_root$uri.php";
170 fastcgi_param PATH_TRANSLATED "$document_root$uri.php";
171 fastcgi_param QUERY_STRING $args;
172 fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
173 fastcgi_index index.php;
174 include fastcgi_params;
177 location ~ [^/]\.php(/|$) {
178 fastcgi_split_path_info ^(.+?\.php)(/.*)$;
179 if (!-f $document_root$fastcgi_script_name) {
182 fastcgi_pass unix:/var/run/php7.2-fpm.sock;
183 fastcgi_index search.php;
184 include fastcgi.conf;
187 Restart the nginx and php5-fpm services and the website should now be available
188 at `http://localhost/`.
191 Now continue with [importing the database](Import-and-Update.md).