Not necessarily. Not everyone wants to build on top of a large pre-existing code base or be locked into limitations because of design choices within Hadoop or H

Not necessarily. Not everyone wants to build on top of a large pre-existing code base or be locked into limitations because of design choices within Hadoop or HDFS. And some people just don't want to write Java. I'm writing a behavioral database in C and I didn't add it to the Hadoop umbrella specifically for those reasons. For example, my database's query language uses LLVM for compilation and optimization. That's something I couldn't do if I was locked into the JVM.