FIX for the bug the server cannot shut down on a map image generation
FIX for the bug the server cannot shut down on a map image generation

rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis,rrs-oacis/rrs-oacis