run_df on vector data cube -> Permission denied: user=oswa..

[soxofaan]

just a ticket to keep track of issue where a colleague tries to use the "parallelized run_udf on vector data cube feature" (as describe at https://github.com/Open-EO/openeo-geopyspark-driver/blob/master/docs/vectorcube-run_udf.md)

his workflow currently fails with

Your openEO batch job failed: 'Permission denied: user=oswa.., access=WRITE, inode="/data":verstr..:hdfs:drwxr-xr-x\n\tat org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:399)\n\tat ...'

[soxofaan]

I could reproduce the problem with a minimal use case.

fixed it with 6356c24

my minimal use case now works on dev instance: see https://gist.github.com/soxofaan/c52066597cfcbb647d57fc7a9e343823