Getting job progress in java application

[Ondřej Klimpera]

Hello I'd like to ask you what is the preferred way of getting running 
jobs progress from Java application, that has executed them.

Im using Hadoop 0.20.203, tried job.end.notification.url property that 
works well, but as the property name says, it sends only job end 
notifications.

What I need is to get updates on map() and reduce() progress.

Please help how to do this.

Thanks.
Ondrej Klimpera