Hi Thomas.
"No cluster execution" on a unit test just means that you haven't run your test on the cluster. By default each test is executed in memory and locally. If you want a cluster execution as well you need to pass the following arguments:
-- scoobi cluster
and to *only* run on the cluster:
-- scoobi !inmemory.!local.!cluster
Then, if you're seeing "JobExecException: MapReduce job 'job_local_0028' failed!", you should enable all the logging and try to find where the exception occurs precisely:
-- scoobi verbose.all
It possibly happens in Scoobi's code so please report anything you find strange.
Thanks,
Eric.