Merge remote-tracking branch 'upstream/master'

[nominatim.git] / docs / admin / Import-and-Update.md

diff --git a/docs/admin/Import-and-Update.md b/docs/admin/Import-and-Update.md
index 1e55e8568495a02dd06f1a16cd28f6929923589f..257e5ebcc5e591245a773554e59fcb4f859c1db3 100644 (file)
--- a/docs/admin/Import-and-Update.md
+++ b/docs/admin/Import-and-Update.md
@@ -36,7 +36,7 @@ the directory exists. There should be at least 40GB of free space.
 ### Wikipedia rankings
 
 Wikipedia can be used as an optional auxiliary data source to help indicate
 ### Wikipedia rankings
 
 Wikipedia can be used as an optional auxiliary data source to help indicate

-the importance of osm features. Nominatim will work without this information
+the importance of OSM features. Nominatim will work without this information

 but it will improve the quality of the results if this is installed.
 This data is available as a binary download:
 
 but it will improve the quality of the results if this is installed.
 This data is available as a binary download:
 


@@ -45,18 +45,20 @@ This data is available as a binary download:
     wget https://www.nominatim.org/data/wikipedia_redirect.sql.bin
 
 Combined the 2 files are around 1.5GB and add around 30GB to the install
     wget https://www.nominatim.org/data/wikipedia_redirect.sql.bin
 
 Combined the 2 files are around 1.5GB and add around 30GB to the install

-size of nominatim. They also increase the install time by an hour or so.
+size of Nominatim. They also increase the install time by an hour or so.

 
 *NOTE:* you'll need to download the Wikipedia rankings before performing
 the initial import of the data if you want the rankings applied to the
 loaded data.
 
 
 *NOTE:* you'll need to download the Wikipedia rankings before performing
 the initial import of the data if you want the rankings applied to the
 loaded data.
 

-### UK postcodes
+### Great Britain, USA postcodes

 
 

-Nominatim can use postcodes from an external source to improve searches that involve a UK postcode. This data can be optionally downloaded: 
+Nominatim can use postcodes from an external source to improve searches that
+involve a GB or US postcode. This data can be optionally downloaded:

 
     cd $NOMINATIM_SOURCE_DIR/data
     wget https://www.nominatim.org/data/gb_postcode_data.sql.gz
 
     cd $NOMINATIM_SOURCE_DIR/data
     wget https://www.nominatim.org/data/gb_postcode_data.sql.gz

+    wget https://www.nominatim.org/data/us_postcode_data.sql.gz

 
 ## Choosing the Data to Import
 
 
 ## Choosing the Data to Import
 


@@ -77,7 +79,7 @@ below. There are also
 
 Please be aware that some extracts are not cut exactly along the country
 boundaries. As a result some parts of the boundary may be missing which means
 
 Please be aware that some extracts are not cut exactly along the country
 boundaries. As a result some parts of the boundary may be missing which means

-that cannot compute the areas for some administrative areas.
+that Nominatim cannot compute the areas for some administrative areas.

 
 ### Dropping Data Required for Dynamic Updates
 
 
 ### Dropping Data Required for Dynamic Updates
 


@@ -99,7 +101,7 @@ database or reuse the space later.
 
 If you only want to use the Nominatim database for reverse lookups or
 if you plan to use the installation only for exports to a
 
 If you only want to use the Nominatim database for reverse lookups or
 if you plan to use the installation only for exports to a

-[photon](http://photon.komoot.de/) database, then you can set up a database
+[photon](https://photon.komoot.de/) database, then you can set up a database

 without search indexes. Add `--reverse-only` to your setup command above.
 
 This saves about 5% of disk space.
 without search indexes. Add `--reverse-only` to your setup command above.
 
 This saves about 5% of disk space.


@@ -121,7 +123,7 @@ import styles available which only read selected data:
 
 The style can be changed with the configuration `CONST_Import_Style`.
 
 
 The style can be changed with the configuration `CONST_Import_Style`.
 

-To give you an idea of the impact of using the different style, the table
+To give you an idea of the impact of using the different styles, the table

 below gives rough estimates of the final database size after import of a
 2018 planet and after using the `--drop` option. It also shows the time
 needed for the import on a machine with 32GB RAM, 4 CPUS and SSDs. Note that
 below gives rough estimates of the final database size after import of a
 2018 planet and after using the `--drop` option. It also shows the time
 needed for the import on a machine with 32GB RAM, 4 CPUS and SSDs. Note that


@@ -133,17 +135,18 @@ style     | Import time  |  DB size   |  after drop
 admin     |    5h        |  190 GB    |   20 GB
 street    |   42h        |  400 GB    |  180 GB
 address   |   59h        |  500 GB    |  260 GB
 admin     |    5h        |  190 GB    |   20 GB
 street    |   42h        |  400 GB    |  180 GB
 address   |   59h        |  500 GB    |  260 GB

-full      |   80h        |  590 GB    |  320 GB
+full      |   80h        |  575 GB    |  300 GB

 
 You can also customize the styles further. For an description of the
 
 You can also customize the styles further. For an description of the

-style format see [the developement section](../develop/Import.md).
+style format see [the development section](../develop/Import.md).

 
 ## Initial import of the data
 
 **Important:** first try the import with a small extract, for example from
 [Geofabrik](https://download.geofabrik.de).
 
 
 ## Initial import of the data
 
 **Important:** first try the import with a small extract, for example from
 [Geofabrik](https://download.geofabrik.de).
 

-Download the data to import and load the data with the following command:
+Download the data to import and load the data with the following command
+from the build directory:

 
 ```sh
 ./utils/setup.php --osm-file <data file> --all [--osm2pgsql-cache 28000] 2>&1 | tee setup.log
 
 ```sh
 ./utils/setup.php --osm-file <data file> --all [--osm2pgsql-cache 28000] 2>&1 | tee setup.log


@@ -156,7 +159,7 @@ about the same size as the file you are importing but never more than
 2/3 of RAM available. If your machine starts swapping reduce the size.
 
 Computing word frequency for search terms can improve the performance of
 2/3 of RAM available. If your machine starts swapping reduce the size.
 
 Computing word frequency for search terms can improve the performance of

-forward geocoding in particular under high load as it helps Postgres' query
+forward geocoding in particular under high load as it helps PostgreSQL's query

 planner to make the right decisions. To recompute word counts run:
 
 ```sh
 planner to make the right decisions. To recompute word counts run:
 
 ```sh


@@ -194,7 +197,7 @@ entire US adds about 10GB to your database.
 
     `data-source/us-tiger/README.md` explains how the data got preprocessed.
 
 
     `data-source/us-tiger/README.md` explains how the data got preprocessed.
 

-  2. Import the data into your Nominatim database: 
+  2. Import the data into your Nominatim database:

 
         ./utils/setup.php --import-tiger-data
 
 
         ./utils/setup.php --import-tiger-data
 


@@ -211,7 +214,7 @@ entire US adds about 10GB to your database.
 
 ## Updates
 
 
 ## Updates
 

-There are many different possibilities to update your Nominatim database.
+There are many different ways to update your Nominatim database.

 The following section describes how to keep it up-to-date with Pyosmium.
 For a list of other methods see the output of `./utils/update.php --help`.
 
 The following section describes how to keep it up-to-date with Pyosmium.
 For a list of other methods see the output of `./utils/update.php --help`.
 


@@ -240,7 +243,7 @@ to update using the global minutely diffs.
 
 If you want a different update source you will need to add some settings
 to `settings/local.php`. For example, to use the daily country extracts
 
 If you want a different update source you will need to add some settings
 to `settings/local.php`. For example, to use the daily country extracts

-diffs for Ireland from geofabrik add the following:
+diffs for Ireland from Geofabrik add the following:

 
     // base URL of the replication service
     @define('CONST_Replication_Url', 'https://download.geofabrik.de/europe/ireland-and-northern-ireland-updates');
 
     // base URL of the replication service
     @define('CONST_Replication_Url', 'https://download.geofabrik.de/europe/ireland-and-northern-ireland-updates');


@@ -256,7 +259,7 @@ To set up the update process now run the following command:
 It outputs the date where updates will start. Recheck that this date is
 what you expect.
 
 It outputs the date where updates will start. Recheck that this date is
 what you expect.
 

-The --init-updates command needs to be rerun whenever the replication service
+The `--init-updates` command needs to be rerun whenever the replication service

 is changed.
 
 #### Updating Nominatim
 is changed.
 
 #### Updating Nominatim