Apache Cassandra is one of those applications that would take many post to cover all its features. In general, it is a NoSQL database manager that is sponsored by the Apache foundation. This way it is easy to assume that it is open source and that it is strongly supported by the community.

Its main utility? is that it allows to make high-performance data clusters worldwide and above all we can make changes without data loss or falls. Then, the segment to which it is directed is a little less broad than other alternatives such as MongoDB.

Install Apache Cassandra on Debian 10

First of all, we recommend that you upgrade your system before you start installing Apache Cassandra. So let’s go for it.

:~$ sudo apt update
:~$ sudo apt upgrade

Apache Cassandra can be installed through its binaries available on the project website. However, it is not so easy to do. Fortunately, there is another, more reliable way to install it.

Open a terminal session on your computer with Debian 10 and install these necessary packages:

:~$ sudo apt install wget curl gnupg gnupg1 gnupg2

Then, after the installation is finished you have to download the GPG key to add the Cassandra repository for Debian 10.

So, run the following command:

:~$ curl https://www.apache.org/dist/cassandra/KEYS | sudo apt-key add -

Then, add the Apache Cassandra repository to Debian 10 sources list.

:~$ echo "deb http://www.apache.org/dist/cassandra/debian 311x main" | sudo tee -a /etc/apt/sources.list.d/cassandra.sources.list

In this way, we are adding the repository for the 3.11 branch of Apache Cassandra. In fact, at the time of writing this post, the latest available version is 3.11.6.

Then, refresh the APT cache.

:~$ sudo apt update

Also you can read APT: The Ubuntu package manager

Now, you can install Apache Cassandra by running the following command:

:~$ sudo apt install cassandra

Now you have to start and enable the service to start the system. Then it is a good idea to check the status of the service.

:~$ sudo systemctl enable cassandra
:~$ sudo systemctl start cassandra
:~$ sudo systemctl status cassandra

Apache Cassandra is installed, but before using it you have to configure it a bit.

Configure Apache Cassandra before use it

If you are going to use Cassandra for a single node, then the default setting is good. However, it is possible to configure a little Cassandra if you are going to use it for create a cluster.

:~$ sudo nano /etc/cassandra/cassandra.yaml

In this file you first have to change the name of the cluster.

cluster_name : ['cluster_name']

Next, you need to set the seeds of the cluster. You have to add the IP address separated by comma.

seeds: ["ip_address", "ip_address"]

It is also recommended to change the default port to increase security. However, it is not mandatory.

storage_port :[port]

Next, restart the Apache Cassandra service.

:~$ sudo systemctl restart cassandra

And that is it.

Conclusion

So, in this post you learned how to install Apache Cassandra on Debian 10 Buster. With this NoSQL database manager you will be able to cluster data at the level of large networks. All without sacrificing system resources and with high performance without packet loss.

You can also read How to install Apache Cassandra on Debian 9 Stretch?

Please share this post with your friends and join our Telegram channel.

The post How to install Apache Cassandra on Debian 10? appeared first on Linux Windows and android Tutorials.

Apache Cassandra is a distributed NoSQL database based on an open-source “value-key” storage model written in Java. Being a business database manager, the Data is automatically replicated to multiple nodes for fault-tolerance. Replication across multiple data centers is supported. In addition, failed nodes can be replaced with no downtime.

There are many more features that make Apache Cassandra a reference in the sector of enterprise databases. For example, scalability is its other strength. Cassandra is used by many companies with many replicable nodes.

So, let us start to install Apache Cassandra on Debian 9.

1. Upgrade your system

First, you need to update the system. To do this, open a terminal and run.

:~$ su
:~# apt update && apt upgrade

After that, you will have an updated and robust system thanks to the security patches. So now you can continue.

2. Install Apache Cassandra

There are two ways to perform the installation. The first is through the binaries downloaded from the website. This is a simple way to achieve the installation, however, it is not the easiest and many may find it difficult.

Thus, we are going to use the .deb packages repository to make the installation as simple as possible and the best of all is that we will get the latest stable version.

So, add the Apache Cassandra repository.

:~# echo "deb http://www.apache.org/dist/cassandra/debian 39x main" | tee -a /etc/apt/sources.list.d/cassandra.sources.list

After that, add the public key.

:~# curl https://www.apache.org/dist/cassandra/KEYS | apt-key add -

NOTE: If you don’t have CURL installed, you can run the “apt install curl” command.

After that, you need to refresh the APT cache.

:~# apt update

Then, install Apache Cassandra.

:~# apt install cassandra

Now, you need to enable, start, and check the Cassandra service.

:~# systemctl enable cassandra
:~# systemctl start cassandra
:~# systemctl status cassandra

3. Configure Cassandra

On the Cassandra web site, the developers say: “For running Cassandra on a single node, the default configuration is enough, you shouldn’t need to change any configuration. However, when you deploy a cluster of nodes or use clients that are not on the same host, then there are some parameters that must be changed.”

So, let us change these parameters.

:~# nano /etc/cassandra/cassandra.yaml

First, the cluster name. Obviously. Replace the default by yours.

Next, you need to set the seeds of the cluster. You have to add the IP address separated by comma.

If you want to increase security you can change the storage port. However, remember to modify your firewall settings to make that port available. In the listen_adress parameter, you must add the IP address of your central node. This is what allows other nodes to communicate with this node. So, it is important that you change it.

With these configurations, you can start to use Apache Cassandra.

Conclusion

Although Apache Cassandra is a high-performance application used by many large enterprises, its installation is not complex. Their website offers useful information about this powerful tool.

Please share this post with your friends.

The post Install Apache Cassandra on Debian 9? appeared first on Linux Windows and android Tutorials.