thank you very much for looking into this issue. I've just linked it with
SQOOP-671 that I believe needs to be solved first.
Otherwise you're right. I believe that we need to take important counters and propagate them throw Sqoop counters to framework (and further serialize them in Sqoop's metastore). I think that we do not need to transfer all mapreduce counters. I'm thinking that starting with "Number of transferred items" and "Number of transferred bytes" should be reasonable at the moment.