Actually Doug Cutting himself (who created Hadoop) tweeted about this. I guess Spark gets some of his blessing :)
As pointed out in the article multiple times, we are comparing with MR here. We are not comparing with Hadoop as an ecosystem. Spark plays nicely with Hadoop. As a matter of fact, this experiment ran on HDFS.
In terms of vibrant community, Spark is now the largest open source Big Data project by community/contributor count. More than 300 people have contributed code to the project.
As pointed out in the article multiple times, we are comparing with MR here. We are not comparing with Hadoop as an ecosystem. Spark plays nicely with Hadoop. As a matter of fact, this experiment ran on HDFS.
In terms of vibrant community, Spark is now the largest open source Big Data project by community/contributor count. More than 300 people have contributed code to the project.