What about Hadoop in the context of real-time requirements for some systems like those exist in mobile networks?
and if it is not supported, what are the alternatives in particularly for the real-time case?
Best Regards, Mohamed El-Refaey
So true realtime isn't a core Hadoop strength at this point. The processing model really doesn't lend itself to those sort of requirements.
Looking ahead though two interesting developments are Yarn and Tez. The former treats the Hadoop platform as a more generic processing framework and Tez (just starting) will be building processing models that differ significantly from what we are used to in MapReduce today. Those seem like areas of major innovation to me and I suspect we'll see a whole raft of different types of processing happening on Hadoop in the future.
Real Time in a Hadoop cluster is one of the many things possible when you use MapR Enterprise Grade Distribution compared to Apache Hadoop or other distributions thanks to the many enhancements and features of MapR-FS, which is a read/write file system among others.