document -expiretiles-*
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@ -107,7 +107,7 @@ You can limit the imported geometries to polygon boundaries. You can load the li
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Config file
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~~~~~~~~~~~
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You can create a simple Imposm configuration, instead of specifying the ``-connection`` or ``-mapping`` option with each run. You can use this configuration with the ``-config`` option.
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You can create a simple JSON configuration file, instead of specifying the ``-connection`` or ``-mapping`` option with each run. You can use this configuration with the ``-config`` option.
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You can configure the following options:
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@ -215,3 +215,9 @@ Imposm 3 stores the sequence number of the last imported changeset in `${cachedi
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Remember that you have to make the initial import with the ``-diff`` option. See above.
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.. note:: You should not make changes to the mapping file after the initial import. Changes are not detected and this can result aborted updates or incomplete data.
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Expire tiles
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^^^^^^^^^^^^
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Imposm can log where the OSM data was changed when it imports diff files. You can use the ``-expiretiles-dir`` option to specify a location where Imposm should log this information. Imposm creates files in the format `YYYYmmdd/HHMM.sss.tiles`` (e.g. ``20161129/2123.123.tiles``) inside this directory. Each file contains a list with webmercator tiles in the format ``z/x/y`` (e.g. ``14/7321/1339``). All tiles are based on zoom level 14. You can change this with the ``-expiretiles-zoom`` option.
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Both expire options can be set as ``expiretiles_dir`` and ``expiretiles_zoom`` in the JSON configuration.
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