Incomplete road labels on tiles' edges rendered my python-mapnik

Question

We imported Europe data file to Postgres database with psm2pgsql and rendered tiles with generate_tiles_multiprocess.py which comes from python-mapnik tools and road labels look quite strange as per attached screenshot. Why do these labels look incomplete ? Have you seen anything like this before ? I can provide further details if needed.

Answer 1

Finally, I have right solution!

<Map buffer-size="512"

AND

<ShieldSymbolizer clip="false"

instead of

<ShieldSymbolizer avoid-edges="true"

(all occurences) in osm.xml worked.