@matrixm how are you running it exactly? as the snowblossom user?
if you created the directory as root, you'll need to fix the permissions so that the snowblossom user can write to those.
its corrected
Package java-1.8.0-openjdk-1:1.8.0.191.b12-8.fc29.x86_64 is already installed. Exception in thread "main" java.lang.RuntimeException: java.util.concurrent.ExecutionException: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception at duckutil.TaskMaster.getResults(TaskMaster.java:69)
This error remaisns after i start node
Maybe just build and run from source