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 * [expat](https://libexpat.github.io/)
29 * [proj](https://proj.org/)
30 * [bzip2](http://www.bzip.org/)
31 * [zlib](https://www.zlib.net/)
32 * [Boost libraries](https://www.boost.org/), including system and filesystem
33 * PostgreSQL client libraries
34 * a recent C++ compiler (gcc 5+ or Clang 3.8+)
36 For running Nominatim:
38 * [PostgreSQL](https://www.postgresql.org) (9.3 - 11)
39 * [PostGIS](https://postgis.org) (2.2 - 2.5)
40 * [Python 3](https://www.python.org/)
41 * [Psycopg2](https://initd.org/psycopg)
42 * [PHP](https://php.net) (7.0 or later)
44 * PHP-intl (bundled with PHP)
45 * a webserver (apache or nginx are recommended)
47 !!! danger "Important"
48 Postgresql 12+ and Postgis 3.0+ are known to cause performance issues. They are
49 not recommended for a production installation at the moment.
51 For running continuous updates:
53 * [pyosmium](https://osmcode.org/pyosmium/) (with Python 3)
57 * [behave](http://pythonhosted.org/behave/)
58 * [nose](https://nose.readthedocs.io)
59 * [phpunit](https://phpunit.de)
63 A minimum of 2GB of RAM is required or installation will fail. For a full
64 planet import 64GB of RAM or more are strongly recommended. Do not report
65 out of memory problems if you have less than 64GB RAM.
67 For a full planet install you will need at least 800GB of hard disk space
68 (take into account that the OSM database is growing fast). SSD disks
69 will help considerably to speed up import and queries.
71 Even on a well configured machine the import of a full planet takes
72 at least 2 days. Without SSDs 7-8 days are more realistic.
74 ## Setup of the server
78 You might want to tune your PostgreSQL installation so that the later steps
79 make best use of your hardware. You should tune the following parameters in
80 your `postgresql.conf` file.
83 maintenance_work_mem = (10GB)
84 autovacuum_work_mem = 2GB
86 effective_cache_size = (24GB)
87 synchronous_commit = off
88 checkpoint_segments = 100 # only for postgresql <= 9.4
89 max_wal_size = 1GB # postgresql > 9.4
90 checkpoint_timeout = 10min
91 checkpoint_completion_target = 0.9
93 The numbers in brackets behind some parameters seem to work fine for
94 64GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
95 means that PostgreSQL needs to run checkpoints less often but it does require
96 the additional space on your disk.
98 Autovacuum must not be switched off because it ensures that the
99 tables are frequently analysed. If your machine has very little memory,
100 you might consider setting:
102 autovacuum_max_workers = 1
104 and even reduce `autovacuum_work_mem` further. This will reduce the amount
105 of memory that autovacuum takes away from the import process.
107 For the initial import, you should also set:
110 full_page_writes = off
112 Don't forget to reenable them after the initial import or you risk database
118 The `website/` directory in the build directory contains the configured
119 website. Include the directory into your webbrowser to serve php files
122 #### Configure for use with Apache
124 Make sure your Apache configuration contains the required permissions for the
125 directory and create an alias:
127 <Directory "/srv/nominatim/build/website">
128 Options FollowSymLinks MultiViews
129 AddType text/html .php
130 DirectoryIndex search.php
133 Alias /nominatim /srv/nominatim/build/website
135 `/srv/nominatim/build` should be replaced with the location of your
138 After making changes in the apache config you need to restart apache.
139 The website should now be available on http://localhost/nominatim.
141 #### Configure for use with Nginx
143 Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
145 By default php listens on a network socket. If you want it to listen to a
146 Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
149 ; Comment out the tcp listener and add the unix socket
150 ;listen = 127.0.0.1:9000
151 listen = /var/run/php5-fpm.sock
153 ; Ensure that the daemon runs as the correct user
154 listen.owner = www-data
155 listen.group = www-data
158 Tell nginx that php files are special and to fastcgi_pass to the php-fpm
159 unix socket by adding the location definition to the default configuration.
161 root /srv/nominatim/build/website;
162 index search.php index.html;
163 location ~ [^/]\.php(/|$) {
164 fastcgi_split_path_info ^(.+?\.php)(/.*)$;
165 if (!-f $document_root$fastcgi_script_name) {
168 fastcgi_pass unix:/var/run/php5-fpm.sock;
169 fastcgi_index search.php;
170 include fastcgi.conf;
173 Restart the nginx and php5-fpm services and the website should now be available
174 at `http://localhost/`.
177 Now continue with [importing the database](Import-and-Update.md).