What is “Cloudera”?
Hadoop is an open source project, Cloudera commercializes Hadoop, simplifies the installation process, and does some packaging for Hadoop.
According to the needs of use, Hadoop clusters need to install many components. It is more troublesome to install and configure, and also consider HA, monitoring and so on.
Cloudera makes it easy to deploy clusters, install the required components, and monitor and manage the cluster.
CDH is a distribution of Cloudera, including Hadoop, Spark, Hive, Hbase and other tools.
There are two versions of Cloudera:
Cloudera Express version is free Cloudera Enterprise (60-day trial period) requires a registration code