Storm
Stream processing:
Storm is a freeand open source distributed realtime computation system. Storm makesit easy to reliably process unbounded streams of data, doing for realtime processing what Hadoopd is for batch processing.
LINK
Operational Database Management Systems
Stream processing:
Storm is a freeand open source distributed realtime computation system. Storm makesit easy to reliably process unbounded streams of data, doing for realtime processing what Hadoopd is for batch processing.
LINK