[GraphHopper] Cannot flush graph

[Tuan Nguyen]

Hi,

In my project, I created a GraphHopper object with following initialization:
        hopper = new GraphHopper();
        hopper.setCHEnable(false);
        hopper.setMemoryMapped();
        hopper.setOSMFile(PBF_FILE);
        hopper.setGraphHopperLocation(GRAPH_FOLDER);
        encoder = new CarFlagEncoder();
        hopper.setEncodingManager( new EncodingManager( encoder ) );
        hopper.setPreciseIndexResolution(20);
        hopper.importOrLoad();

I then used Map Matching component to find and update speed of a number of
edges. I could confirm that this update was successful as the routing
results before & after updating speed were different.

However, when I tried to persist the updated edges by calling
hopper.getGraph().flush(), the new speed was not stored to disc.

MMap was used as DataAccessType so I suppose flush is enabled.

Am I missing anything here?

Kind Regards,
Tuan.
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