replace pylint with flake8 everywhere

[nominatim.git] / docs / admin / Installation.md

diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md
index 89e56c6e8e165621504e85c308fbfede5057c39b..78062908c9ca230179023a960008a6f04fd9deb1 100644 (file)
--- a/docs/admin/Installation.md
+++ b/docs/admin/Installation.md
@@ -4,8 +4,8 @@ This page contains generic installation instructions for Nominatim and its
 prerequisites. There are also step-by-step instructions available for
 the following operating systems:
 
 prerequisites. There are also step-by-step instructions available for
 the following operating systems:
 

-  * [Ubuntu 22.04](../appendix/Install-on-Ubuntu-22.md)
-  * [Ubuntu 20.04](../appendix/Install-on-Ubuntu-20.md)
+  * [Ubuntu 24.04](Install-on-Ubuntu-24.md)
+  * [Ubuntu 22.04](Install-on-Ubuntu-22.md)

 
 These OS-specific instructions can also be found in executable form
 in the `vagrant/` directory.
 
 These OS-specific instructions can also be found in executable form
 in the `vagrant/` directory.


@@ -27,46 +27,46 @@ and can't offer support.
     otherwise import and queries will be slow to the point of being unusable.
     Query performance has marked improvements with PostgreSQL 13+ and PostGIS 3.2+.
 
     otherwise import and queries will be slow to the point of being unusable.
     Query performance has marked improvements with PostgreSQL 13+ and PostGIS 3.2+.
 

-For compiling:
-
-  * [cmake](https://cmake.org/)
-  * [expat](https://libexpat.github.io/)
-  * [proj](https://proj.org/)
-  * [bzip2](http://www.bzip.org/)
-  * [zlib](https://www.zlib.net/)
-  * [ICU](http://site.icu-project.org/)
-  * [nlohmann/json](https://json.nlohmann.me/)
-  * [Boost libraries](https://www.boost.org/), including system and filesystem
-  * PostgreSQL client libraries
-  * a recent C++ compiler (gcc 5+ or Clang 3.8+)
-

 For running Nominatim:
 
   * [PostgreSQL](https://www.postgresql.org) (9.6+ will work, 11+ strongly recommended)
   * [PostGIS](https://postgis.net) (2.2+ will work, 3.0+ strongly recommended)
 For running Nominatim:
 
   * [PostgreSQL](https://www.postgresql.org) (9.6+ will work, 11+ strongly recommended)
   * [PostGIS](https://postgis.net) (2.2+ will work, 3.0+ strongly recommended)

+  * [osm2pgsql](https://osm2pgsql.org) (1.8+, optional when building with CMake)

   * [Python 3](https://www.python.org/) (3.7+)
   * [Python 3](https://www.python.org/) (3.7+)

-  * [Psycopg2](https://www.psycopg.org) (2.7+)
+
+Furthermore the following Python libraries are required:
+
+  * [Psycopg3](https://www.psycopg.org)

   * [Python Dotenv](https://github.com/theskumar/python-dotenv)
   * [psutil](https://github.com/giampaolo/psutil)
   * [Jinja2](https://palletsprojects.com/p/jinja/)
   * [Python Dotenv](https://github.com/theskumar/python-dotenv)
   * [psutil](https://github.com/giampaolo/psutil)
   * [Jinja2](https://palletsprojects.com/p/jinja/)

-  * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
-  * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+)

   * [PyICU](https://pypi.org/project/PyICU/)
   * [PyYaml](https://pyyaml.org/) (5.1+)
   * [datrie](https://github.com/pytries/datrie)
 
   * [PyICU](https://pypi.org/project/PyICU/)
   * [PyYaml](https://pyyaml.org/) (5.1+)
   * [datrie](https://github.com/pytries/datrie)
 

-When running the PHP frontend:
+These will be installed automatically when using pip installation.

 
 

-  * [PHP](https://php.net) (7.3+)
-  * PHP-pgsql
-  * PHP-intl (bundled with PHP)
+When using legacy CMake-based installation:
+
+  * [cmake](https://cmake.org/)
+  * [expat](https://libexpat.github.io/)
+  * [proj](https://proj.org/)
+  * [bzip2](http://www.bzip.org/)
+  * [zlib](https://www.zlib.net/)
+  * [ICU](http://site.icu-project.org/)
+  * [nlohmann/json](https://json.nlohmann.me/)
+  * [Boost libraries](https://www.boost.org/), including system and file system
+  * PostgreSQL client libraries
+  * a recent C++ compiler (gcc 5+ or Clang 3.8+)

 
 For running continuous updates:
 
   * [pyosmium](https://osmcode.org/pyosmium/)
 
 
 For running continuous updates:
 
   * [pyosmium](https://osmcode.org/pyosmium/)
 

-For running the experimental Python frontend:
+For running the Python frontend:

 
 

+  * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
+  * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+, only when using SQLAlchemy < 2.0)

   * one of the following web frameworks:
     * [falcon](https://falconframework.org/) (3.0+)
     * [starlette](https://www.starlette.io/)
   * one of the following web frameworks:
     * [falcon](https://falconframework.org/) (3.0+)
     * [starlette](https://www.starlette.io/)


@@ -86,7 +86,7 @@ Take into account that the OSM database is growing fast.
 Fast disks are essential. Using NVME disks is recommended.
 
 Even on a well configured machine the import of a full planet takes
 Fast disks are essential. Using NVME disks is recommended.
 
 Even on a well configured machine the import of a full planet takes

-around 2 days. When using traditional SSDs, 4-5 days are more realistic.
+around 2.5 days. When using traditional SSDs, 4-5 days are more realistic.

 
 ## Tuning the PostgreSQL database
 
 
 ## Tuning the PostgreSQL database
 


@@ -98,14 +98,16 @@ your `postgresql.conf` file.
     maintenance_work_mem = (10GB)
     autovacuum_work_mem = 2GB
     work_mem = (50MB)
     maintenance_work_mem = (10GB)
     autovacuum_work_mem = 2GB
     work_mem = (50MB)

-    effective_cache_size = (24GB)

     synchronous_commit = off
     max_wal_size = 1GB
     synchronous_commit = off
     max_wal_size = 1GB

-    checkpoint_timeout = 10min
+    checkpoint_timeout = 60min

     checkpoint_completion_target = 0.9
     checkpoint_completion_target = 0.9

+    random_page_cost = 1.0
+    wal_level = minimal
+    max_wal_senders = 0

 
 The numbers in brackets behind some parameters seem to work fine for
 
 The numbers in brackets behind some parameters seem to work fine for

-64GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
+128GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`

 means that PostgreSQL needs to run checkpoints less often but it does require
 the additional space on your disk.
 
 means that PostgreSQL needs to run checkpoints less often but it does require
 the additional space on your disk.
 


@@ -142,6 +144,23 @@ wget -O Nominatim/data/country_osm_grid.sql.gz https://nominatim.org/data/countr
 
 ### Building Nominatim
 
 
 ### Building Nominatim
 

+#### Building the latest development version with pip
+
+Nominatim is easiest to run from its own virtual environment. To create one, run:
+
+    sudo apt-get install virtualenv
+    virtualenv /srv/nominatim-venv
+
+To install Nominatim directly from the source tree into the virtual environment, run:
+
+    /srv/nominatim-venv/bin/pip install packaging/nominatim-{db,api}
+
+#### Building in legacy CMake mode
+
+!!! warning
+    Installing Nominatim through CMake is now deprecated. The infrastructure
+    will be removed in Nominatim 5.0. Please switch to pip installation.
+

 The code must be built in a separate directory. Create the directory and
 change into it.
 
 The code must be built in a separate directory. Create the directory and
 change into it.
 


@@ -159,17 +178,6 @@ make
 sudo make install
 ```
 
 sudo make install
 ```
 

-!!! warning
-    The default installation no longer compiles the PostgreSQL module that
-    is needed for the legacy tokenizer from older Nominatim versions. If you
-    are upgrading an older database or want to run the
-    [legacy tokenizer](../customize/Tokenizers.md#legacy-tokenizer) for
-    some other reason, you need to enable the PostgreSQL module via
-    cmake: `cmake -DBUILD_MODULE=on ../Nominatim`. To compile the module
-    you need to have the server development headers for PostgreSQL installed.
-    On Ubuntu/Debian run: `sudo apt install postgresql-server-dev-<postgresql version>`
-
-

 Nominatim installs itself into `/usr/local` per default. To choose a different
 installation directory add `-DCMAKE_INSTALL_PREFIX=<install root>` to the
 cmake command. Make sure that the `bin` directory is available in your path
 Nominatim installs itself into `/usr/local` per default. To choose a different
 installation directory add `-DCMAKE_INSTALL_PREFIX=<install root>` to the
 cmake command. Make sure that the `bin` directory is available in your path