-# Running Your Own Instance
+# Troubleshooting Nominatim Installations
-### Can I import multiple countries and keep them up to date?
-
-You should use the extracts and updates from https://download.geofabrik.de.
-For the initial import, download the countries you need and merge them.
-See [OSM Help](https://help.openstreetmap.org/questions/48843/merging-two-or-more-geographical-areas-to-import-two-or-more-osm-files-in-nominatim)
-for examples how to do that. Use the resulting single osm file when
-running `setup.php`.
-
-For updates you need to download the change files for each country
-once per day and apply them **separately** using
-
- ./utils/update.php --import-diff <filename> --index
-
-See [this issue](https://github.com/openstreetmap/Nominatim/issues/60#issuecomment-18679446)
-for a script that runs the updates using osmosis.
-
-### Can I import negative OSM ids into Nominatim?
-
-See [https://help.openstreetmap.org/questions/64662/nominatim-flatnode-with-negative-id]()
-
-### Missing XML or text declaration
-
-The website might show: `XML Parsing Error: XML or text declaration not at start of entity Location.`
-
-Make sure there are no spaces at the beginning of your `settings/local.php` file.
-
-
-# Installation
+## Installation Issues
### Can a stopped/killed import process be resumed?
### PHP "open_basedir restriction in effect" warnings
- `PHP Warning: file_get_contents(): open_basedir restriction in effect.`
+ PHP Warning: file_get_contents(): open_basedir restriction in effect.
-You need to adjust the [open_basedir](http://www.php.net/manual/en/ini.core.php#ini.open-basedir) setting
+You need to adjust the [open_basedir](https://www.php.net/manual/en/ini.core.php#ini.open-basedir) setting
in your PHP configuration (`php.ini file`). By default this setting may look like this:
open_basedir = /srv/http/:/home/:/tmp/:/usr/share/pear/
-Either add reported directories to the list or disable this setting temporarily by
+Either add reported directories to the list or disable this setting temporarily by
dding ";" at the beginning of the line. Don't forget to enable this setting again
once you are done with the PHP command line operations.
You should set the default time zone as instructed in the warning in
your `php.ini` file. Find the entry about timezone and set it to
something like this:
-
+
; Defines the default timezone used by the date functions
- ; http://php.net/date.timezone
+ ; https://php.net/date.timezone
date.timezone = 'America/Denver'
Or
and recompile (`cmake .. && make`).
+## I see the error "ERROR: permission denied for language c"
+
+`nominatim.so`, written in C, is required to be installed on the database
+server. Some managed database (cloud) services like Amazon RDS do not allow
+this. There is currently no work-around other than installing a database
+on a non-managed machine.
+
+
### I see the error: "function transliteration(text) does not exist"
Reinstall the nominatim functions with `setup.php --create--functions`
and check for any errors, e.g. a missing `nominatim.so` file.
+### I see the error: "ERROR: mmap (remap) failed"
+
+This may be a simple out-of-memory error. Try reducing the memory used
+for `--osm2pgsql-cache`. Also make sure that overcommitting memory is
+allowed: `cat /proc/sys/vm/overcommit_memory` should print 0 or 1.
+
+If you are using a flatnode file, then it may also be that the underlying
+filesystem does not fully support 'mmap'. A notable candidate is virtualbox's
+vboxfs.
+
+### nominatim UPDATE failed: ERROR: buffer 179261 is not owned by resource owner Portal
+
+Several users [reported this](https://github.com/openstreetmap/Nominatim/issues/1168) during the initial import of the database. It's
+something PostgreSQL internal Nominatim doesn't control. And PostgreSQL forums
+suggest it's threading related but definitely some kind of crash of a process.
+Users reported either rebooting the server, different hardware or just trying
+the import again worked.
### The website shows: "Could not get word tokens"
sudo systemctl restart httpd
+### "must be an array or an object that implements Countable" warning in /usr/share/pear/DB.php
+
+The warning started with PHP 7.2. Make sure you have at least [version 1.9.3 of PEAR DB](https://github.com/pear/DB/releases)
+installed.
+
### Website reports "DB Error: insufficient permissions"
The user the webserver, e.g. Apache, runs under needs to have access to the Nominatim database. You can find the user like [this](https://serverfault.com/questions/125865/finding-out-what-user-apache-is-running-as), for default Ubuntu operating system for example it's `www-data`.
CONTEXT: PL/pgSQL function make_standard_name(text) line 5 at assignment]
```
-The user the webserver, e.g. Apache, runs under needs to have access to that file. Same for the user the Postgres runs as. You can find the user like [this](https://serverfault.com/questions/125865/finding-out-what-user-apache-is-running-as), for default Ubuntu operating system for example it's `www-data`.
+The PostgreSQL database, i.e. user `postgres`, needs to have access to that file.
-The permission need to be read&executable by everybody, e.g.
+The permission need to be read & executable by everybody, e.g.
```
-rwxr-xr-x 1 nominatim nominatim 297984 build/module/nominatim.so
Try `chmod a+r nominatim.so; chmod a+x nominatim.so`.
+When running SELinux, make sure that the
+[context is set up correctly](../appendix/Install-on-Centos-7/#adding-selinux-security-settings).
+
### Setup.php fails with "DB Error: extension not found"
-Make sure you have the Postgres extensions hstore and postgis installed.
+Make sure you have the PostgreSQL extensions "hstore" and "postgis" installed.
See the installation instruction for a full list of required packages.
The message is a bit misleading as PHP needs to load the file `DB.php` and
instead re-loads Nominatim's `db.php`. To solve this make sure you
-have the [Pear module 'DB'](http://pear.php.net/package/DB/) installed.
+have the [Pear module 'DB'](https://pear.php.net/package/DB/) installed.
sudo pear install DB
See [https://help.openstreetmap.org/questions/52419/nominatim-flatnode-storage]()
for more information.
+
+## Running your own instance
+
+### Can I import multiple countries and keep them up to date?
+
+You should use the extracts and updates from https://download.geofabrik.de.
+For the initial import, download the countries you need and merge them.
+See [OSM Help](https://help.openstreetmap.org/questions/48843/merging-two-or-more-geographical-areas-to-import-two-or-more-osm-files-in-nominatim)
+for examples how to do that. Use the resulting single osm file when
+running `setup.php`.
+
+For updates you need to download the change files for each country
+once per day and apply them **separately** using
+
+ ./utils/update.php --import-diff <filename> --index
+
+See [this issue](https://github.com/openstreetmap/Nominatim/issues/60#issuecomment-18679446)
+for a script that runs the updates using osmosis.
+
+### Can I import negative OSM ids into Nominatim?
+
+See [this question of Stackoverflow](https://help.openstreetmap.org/questions/64662/nominatim-flatnode-with-negative-id).
+
+### Missing XML or text declaration
+
+The website might show: `XML Parsing Error: XML or text declaration not at start of entity Location.`
+
+Make sure there are no spaces at the beginning of your `settings/local.php` file.
+
+