Flatnode files in DB cluster

Hi I have setup Postgres as cluster model (master & slave). Imported planet data with Flatnode_File config in master server & DB data will sync to slave(not flatnode file) Now I want to query(geocode/reverse) in both master & slave. Is there any problem(performance/data related) will arrive while querying in slave?

asked 14 Jul '18, 15:55

Rajavelu_M
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You only need the flatnode file on the master. It is used during import and data update, not querying. Master/slave should work. The slave database cannot be written to directly so make sure you keep the @define('CONST_Log_DB', false); (settings.php).

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answered 14 Jul '18, 18:21

mtmail
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@mtmail: Thank you

(14 Jul '18, 20:19) Rajavelu_M

Note that if you use a syncing mechanism that can do per-table sync (like e.g. slony), you only need to replicate a subset of all tables for geocoding to work. The list of required tables is here: https://github.com/openstreetmap/Nominatim/blob/master/utils/setup.php#L658-L672

(15 Jul '18, 09:24) Frederik Ramm ♦

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Question tags:

nominatim ×689
query ×147
flatnode ×5
clustering ×3

question asked: 14 Jul '18, 15:55

question was seen: 2,174 times

last updated: 15 Jul '18, 09:24

Flatnode files in DB cluster

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