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Cleanup log entries from mapnik causing noise to syslog
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Description

There are a lot of log entries generated by mapnik rendering on the maps host syslog causing a lot of noise.

Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg
Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg
Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg
Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg
Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg
Aug 19 15:19:46 maps2005 kartotherian[33648]: Mapnik LOG> 2021-08-19 15:19:46: Marker does not exist: /srv/deployment/kartotherian/deploy-cache/revs/0ea1846b556430e4aa92c80d9e72328906a3c53e/node_modules/@kartotherian/osm-bright-style/shield/default-0.svg

We should make sure to either fix the issue or filter the log entries to avoid flooding syslog.

Event Timeline

I've once "fixed" this issue locally by creating a transparent SVG file with a 1x1 px area named shield/default-0.svg. It's hacky but it will clean up the log.