Thank you Ted, I am using the 21.0 API so I would be drawing Counters from the Context. So if a Counter is increased on a certain Reducer other Reducers would retrieve that increased value when accessing the same Counter? If so, then that is an interesting piece of information.
Unfortunately my threshold are doubles. I guess, I could find some kind of conversion there. But is there any more general way to pass information between Reducers? Thanks, Martin On Sat, Dec 18, 2010 at 5:44 PM, Ted Yu <yuzhih...@gmail.com> wrote: > In your reducer, you can utilize Reporter (getCounter and incrCounter > methods) to pass this information between reducers. > > On Sat, Dec 18, 2010 at 8:04 AM, Martin Becker <_martinbec...@web.de> wrote: >> >> Hello everbody, >> >> I am wondering if there is a feature allowing (in my case) reduce >> tasks to communicate. For example by some volatile variables at some >> centralized point. Or maybe just notify other running or to-be-running >> reduce tasks of a completed reduce task featuring some arguments. >> >> In my case, I have reduce tasks doing computations that will >> output/produce certain quality threshold. Other reduce tasks can/could >> estimate, if they ever get above those thresholds. If not they could >> just cease running. >> >> Thanks in advance, >> Martin >> >> PS: If such functions are not yet part of the API, I would like to >> know if there are good reasons for it and if not, propose to introduce >> such functionality. > >
