Lets start from Cloudera Enterprise Data Hub:
Here is the offering from Hortonworks:
And this is how MapR is packaging Enterprise Hadoop
And finally Pivotal Enterprise Hadoop offering:
Keywords: Apache Hadoop, Cloudera, Hortonworks, Pivotal, MapR, Big Data
When setting Hadoop cluster in Amazon EC2 you would need to configure proper security settings (firewall) so you can access Hadoop cluster directly. Following are the settings for Cloudera CDH4 Hadoop distribution on EC2:
Port 22 for SSH, Port 7180/82 for CDH Manager, 7432 for PSQL and 8888 for Hue and finally Port 50000-50100 for Hadoop JT and HDFS.