Big Data Note 02: The ecosystem and version of Big data for Hadoop

1.Hadoop Eco-System:

(1) Figure 1:

(2) Figure 2:

Figure 1 and Figure 2 are all images of the ecosystem of Hadoop .

2. An example of a gadget for the Hadoop ecosystem:

(1)hive tool (Chinese meaning: Little bee)

With Hive, instead of writing a complex Hadoop program, you just write a SQL statement, and hive translates the SQL statement you wrote into a Hadoop task to execute.

This lowers the threshold for using Hadoop.

(2)hbase distributed database for storing structured data

Figure 1:

Figure 2:

(3) Zookeeper (Chinese meaning: Animal administrator)

Zookeeper monitors the state of each node in the Hadoop management cluster, manages the configuration of the entire cluster, maintains data in sequence between nodes, etc.

Version of 3.Hadoop

There are a number of versions of Hadoop that are now available, the most recent being the following:

But version version2.xx is not very stable, beginners learn Hadoop best Use Version1.2

Big Data Note 02: The ecosystem and version of Big data for Hadoop