Combining Big Data and Cloud Computing is a hot trend. Hadoop is another name to Big Data. It’s the right moment to understand how Apache Hadoop is enabled in Cloud Computing.
Hadoop is the foundation for many other big-data technologies and tools. Hadoop supports many types of workloads, which is crucial for industries that require large-scale scalability. With the exponential growth in big data, storage costs and maintainability are a major concern when considering the budgets of companies.
Are you a newbie looking to get a job in Big Data Hadoop? Check out our previous blog to learn how to start Learning Hadoop for Beginners.
Cloud computing is the latest trend in industry. Big data processing on cloud platforms can be especially useful for situations where an enterprise wants lower costs.
This blog will explain how to enable Apache Hadoop in a Cloud computing instance.
Important considerations to enable Apache Hadoop in Cloud Computing Environment
These points should be taken into consideration before you create an Apache Hadoop environment in a cloud:
Apache Hadoop cloud deployment is concerned about security in the public cloud. Every enterprise should evaluate security criteria before moving Hadoop cluster information, as Hadoop offers very limited security.
Apache Hadoop’s main purpose is data analysis. Apache Hadoop must be used in cloud computing deployments to support the Hadoop ecosystem’s tools, including data visualization and analytics.
Data transmission to the cloud is charged. It is important to consider the location from which data is being transferred to the cloud. The cost of loading data from an internal system that is not on the cloud, or if it is already in the cloud, will vary.
How to Configure Apache Hadoop Environments in the Cloud
You must have Linux platform installed on the cloud to begin Apache Hadoop cloud configuration. We will be discussing how to configure Apache Hadoop cloud computing using pseudo mode. Here, we have used AWS EC2 to represent the cloud environment.
Prerequisites for configuring Apache Hadoop environment on the cloud
AWS account in active status
Public and private keys available for the EC2 instance
Running Linux instance.
PuTTy was installed and set-up on the Linux
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Next, you will need to execute two steps to enable Apache Hadoop within a Cloud computing environment.
Phase1: Connect to EC2 instance via PuTTy
Step 1: Create the private key for PuTTy
To connect EC2 instances to PuTTY in order to configure Apache Hadoop environment you will need a private key to PuTTy that supports AWS private key format (.pem). PuTTYyGen allows us to convert.pem files into the.ppk format, which is supported by PuTTY. Once the PuTTy private keys have been generated, we can connect to the EC2 instance using SSH client.
Step 2: Start PuTTy session to create an EC2 instance
After you have started your PuTTy session to connect to EC2, you will need to authenticate the connection. In the category panel, select connection and SSH. Then expand it. Next, choose Auth. Browse for the.ppk file and open it.
Step 3: Give the permission
It will ask permission for the first user of the instance. Enter your login name as ec2-user. After pressing enter, the session will begin.
Phase 2: Configuring Apache Hadoop for cloud computing
Before you start configuring Apache Hadoop environment in EC2 instance, make sure that you have downloaded the following software:
Next, follow these steps:
Step 1: Create a Hadoop user on an EC2 instance
You will need to add a new Hadoop User to your EC2 instance. You will need root access to do this. You can get root access by using the following command
You can create a new user once you have root access.
Now, add a password for the additional user
Next, create a sudo user for the new user by typing visudo. Make the entry to visudo. File for the user whizlabs.
Step 2: Leave the root
Log in to the new user using the following commands.
Step 3: Transfer the Hadoop/Java dump to the EC2 instance
Before installing Hadoop on EC2 instances, Java must be installed. You will need to copy the zip files of Hadoop and Java downloaded from Windows to EC2 instance via file transfer tools such as WinSCP or FileZilla. These tools can be used to copy the files.
Start the tool.
Enter the hostname, username, and port number of the EC2 instance. This is the default port