[Tile-serving] [osm2pgsql] use one instance of node-persistant-cache per thread (#257)

[Sarah Hoffmann]

The node cache reporting already moved with the switch to C++. It's actually pretty scary because it means that the node cache isn't cleared before indexes are created, so the whole process uses much more memory than before (osm2pgsql:node cache + postgres:maintenance_workmem, instead of max(osm2pgsql:node cache, postgres:maintenance_workmem)). But that's a different issue.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/osm2pgsql/pull/257#issuecomment-71611341
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