How to upgrade from Hadoop 1 2 to Hadoop 2 2

Question

I want to upgrade from Hadoop 1.2 to 2.2. I am using Maven and I want to upgrade without any problems due to upgrade. How can I do this?

This is what I have now: ​

<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-core</artifactId>
    <version>1.2.1</version>
</dependency>

Answer 1

Here's the solution that worked for me:

<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-client</artifactId>
    <version>2.2.0</version>
</dependency>