Segmentation fault (core dumped) with GeoJSON

[ustroetz]

I am trying to render a GeoJSON with Nik4. Can you reproduce the following setup?

Command

nik4.py -p 550 -b 11.79656982421875 55.41810255439062 13.4417724609375 56.07356844648383 -z 11 test.xml map.png

Error message

Segmentation fault (core dumped)

GeoJSON test.geojson https://gist.github.com/anonymous/567c1138bb1327662a0b

Stylesheet test.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Map[]>
<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over" maximum-extent="-20037508.34,-20037508.34,20037508.34,20037508.34">

<Parameters>
  <Parameter name="bounds">-180,-85.05112877980659,180,85.05112877980659</Parameter>
  <Parameter name="center">0,0,2</Parameter>
  <Parameter name="format">png8</Parameter>
  <Parameter name="minzoom">0</Parameter>
  <Parameter name="maxzoom">22</Parameter>
  <Parameter name="scale">1</Parameter>
  <Parameter name="metatile">2</Parameter>
  <Parameter name="id"><![CDATA[test1]]></Parameter>
  <Parameter name="_updated">1402561991000</Parameter>
  <Parameter name="tilejson"><![CDATA[2.0.0]]></Parameter>
  <Parameter name="scheme"><![CDATA[xyz]]></Parameter>
</Parameters>

<Style name="test" filter-mode="first">
  <Rule>
    <MarkersSymbolizer width="6" fill="#ff4455" stroke="#881133" allow-overlap="true" ignore-placement="true" />
  </Rule>
</Style>
<Layer name="test"
  srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
    <StyleName>test</StyleName>
    <Datasource>
       <Parameter name="file"><![CDATA[/home/uli/Documents/MapBox/project/test1/layers/test.geojson]]></Parameter>
       <Parameter name="layer"><![CDATA[OGRGeoJSON]]></Parameter>
       <Parameter name="type"><![CDATA[ogr]]></Parameter>
    </Datasource>
  </Layer>

</Map>

[Zverik]

It rendered correctly on my machine, but I've noticed you are requesting a very big image: 14529×10284. Maybe you do not have enough memory, or have 32 bit system, or mapnik is old. Try dividing the image into tiles with --tiles 3 (you would need imagemagick installed).

[ustroetz]

• I am on a 64 bit Ubuntu 13.10 system.
• I use Mapnik version 2.2.0-pre
• If I reduce the PPI value to or 50 or add --tiles 3 I still get the same error

Do you have any other ideas on how to get it to work?

[Zverik]

Mapnik 2.2.0 (built from source), 64-bit Ubuntu 14.04: still no error. Does mapnik render other images? Does polytiles.py work, for example? If you run Nik4 with -v option, what is the last line that is printed? layer=test?

[ustroetz]

I tried to run the described process on one of our servers (exact same setup as on my local machine), and it worked fine. Something must be screwed up on my local setup. Thanks for your help! For now I just use shapefiles on my local machine. Everything works fine only the GeoJSON is making problems.