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 or later)
39 * [PostGIS](https://postgis.org) (2.2 or later)
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 For running continuous updates:
49 * [pyosmium](https://osmcode.org/pyosmium/) (with Python 3)
53 * [behave](http://pythonhosted.org/behave/)
54 * [nose](https://nose.readthedocs.io)
55 * [phpunit](https://phpunit.de)
59 A minimum of 2GB of RAM is required or installation will fail. For a full
60 planet import 64GB of RAM or more are strongly recommended. Do not report
61 out of memory problems if you have less than 64GB RAM.
63 For a full planet install you will need at least 800GB of hard disk space
64 (take into account that the OSM database is growing fast). SSD disks
65 will help considerably to speed up import and queries.
67 Even on a well configured machine the import of a full planet takes
68 at least 2 days. Without SSDs 7-8 days are more realistic.
70 ## Setup of the server
74 You might want to tune your PostgreSQL installation so that the later steps
75 make best use of your hardware. You should tune the following parameters in
76 your `postgresql.conf` file.
79 maintenance_work_mem = (10GB)
80 autovacuum_work_mem = 2GB
82 effective_cache_size = (24GB)
83 synchronous_commit = off
84 checkpoint_segments = 100 # only for postgresql <= 9.4
85 max_wal_size = 1GB # postgresql > 9.4
86 checkpoint_timeout = 10min
87 checkpoint_completion_target = 0.9
89 The numbers in brackets behind some parameters seem to work fine for
90 64GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
91 means that PostgreSQL needs to run checkpoints less often but it does require
92 the additional space on your disk.
94 Autovacuum must not be switched off because it ensures that the
95 tables are frequently analysed. If your machine has very little memory,
96 you might consider setting:
98 autovacuum_max_workers = 1
100 and even reduce `autovacuum_work_mem` further. This will reduce the amount
101 of memory that autovacuum takes away from the import process.
103 For the initial import, you should also set:
106 full_page_writes = off
108 Don't forget to reenable them after the initial import or you risk database
114 The `website/` directory in the build directory contains the configured
115 website. Include the directory into your webbrowser to serve php files
118 #### Configure for use with Apache
120 Make sure your Apache configuration contains the required permissions for the
121 directory and create an alias:
123 <Directory "/srv/nominatim/build/website">
124 Options FollowSymLinks MultiViews
125 AddType text/html .php
126 DirectoryIndex search.php
129 Alias /nominatim /srv/nominatim/build/website
131 `/srv/nominatim/build` should be replaced with the location of your
134 After making changes in the apache config you need to restart apache.
135 The website should now be available on http://localhost/nominatim.
137 #### Configure for use with Nginx
139 Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
141 By default php listens on a network socket. If you want it to listen to a
142 Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
145 ; Comment out the tcp listener and add the unix socket
146 ;listen = 127.0.0.1:9000
147 listen = /var/run/php5-fpm.sock
149 ; Ensure that the daemon runs as the correct user
150 listen.owner = www-data
151 listen.group = www-data
154 Tell nginx that php files are special and to fastcgi_pass to the php-fpm
155 unix socket by adding the location definition to the default configuration.
157 root /srv/nominatim/build/website;
158 index search.php index.html;
159 location ~ [^/]\.php(/|$) {
160 fastcgi_split_path_info ^(.+?\.php)(/.*)$;
161 if (!-f $document_root$fastcgi_script_name) {
164 fastcgi_pass unix:/var/run/php5-fpm.sock;
165 fastcgi_index search.php;
166 include fastcgi.conf;
169 Restart the nginx and php5-fpm services and the website should now be available
170 at `http://localhost/`.
173 Now continue with [importing the database](Import-and-Update.md).