[mkgmap-dev] Problem with splitter: Failed to find a correct split

Thu Mar 24 19:25:32 GMT 2016

Hello together,

I'm running into a problem with the splitter (r435 aswell as r427) when 
splitting the US_ALASKA file downloadable from Geofabrik.

The exception is:

    Warning: No solution found for partition
    (49.7900390625,-179.9560546875) to (73.828125,180.0) with 6'702'717
    nodes
    uk.me.parabola.splitter.SplitFailedException: Failed to find a
    correct split
             at
    uk.me.parabola.splitter.SplittableDensityArea.split(SplittableDensityArea.java:152)
             at
    uk.me.parabola.splitter.SplittableDensityArea.split(SplittableDensityArea.java:196)
             at uk.me.parabola.splitter.Main.calculateAreas(Main.java:645)
             at uk.me.parabola.splitter.Main.split(Main.java:258)
             at uk.me.parabola.splitter.Main.start(Main.java:187)
             at uk.me.parabola.splitter.Main.main(Main.java:157)

The complete command line with the splitter call is:

    java -Xmx1536M -jar
    D:/fzk/develop/fzk-mde-garmin/Freizeitkarte-Entwicklung/tools/splitter/splitter.jar
    --max-threads=2
    --geonames-file=D:/fzk/develop/fzk-mde-garmin/Freizeitkarte-Entwicklung/cities/c
    ities15000.zip --no-trim
    --precomp-sea=D:/fzk/develop/fzk-mde-garmin/Freizeitkarte-Entwicklung/sea
    --keep-complete=true --mapid=98200001 --max-nodes=800000
    --output=xml --output-dir=D:/fzk/develop/fzk
    -mde-garmin/Freizeitkarte-Entwicklung/work/Freizeitkarte_US_ALASKA
    D:/fzk/develop/fzk-mde-garmin/Freizeitkarte-Entwicklung/work/Freizeitkarte_US_ALASKA/Freizeitkarte_US_ALASKA.osm.pbf

The pbf source file comes from:

    http://download.geofabrik.de/north-america/us/alaska-latest.osm.pbf

The osmconvert statistics about that file is:

    PS Freizeitkarte-Entwicklung>
    .\tools\osmconvert\windows\osmconvert.exe
    .\work\Freizeitkarte_US_ALASKA\Freizeitkarte_US_ALASKA.osm.pbf
    --out-statistics
    timestamp min: 2007-06-05T03:23:59Z
    timestamp max: 2016-03-23T05:41:43Z
    lon min: -180.0000000
    lon max: -122.5122525
    lat min: 48.6234931
    lat max: 71.6061501
    nodes: 4360214
    ways: 185550
    relations: 2245
    node id min: 27207079
    node id max: 4072166815
    way id min: 4708608
    way id max: 404980503
    relation id min: 13971
    relation id max: 6033189
    keyval pairs max: 310
    keyval pairs max object: relation 60189
    noderefs max: 2000
    noderefs max object: way 42394334
    relrefs max: 681
    relrefs max object: relation 3337277
    PS Freizeitkarte-Entwicklung>

Interesting to mention:
- splitter exception mentiones a complete different coverage area than 
osmconvert statistics.
- the area is near -180 / +180... always complicated.

Do I miss something ? All other pbf's I've tried are splitting properly 
without any problems. Do I need to change something in the arguments ? 
Or is it a simple problem of the actual pbf file ?

Any ideas are very welcome....

Cheers
Patrik

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