Running Cassandra as a Windows Service
This post will focus on the getting started aspect with regard to Cassandra and mainly in terms of Windows because—fortunately or unfortunately—that is the operating system I am stuck with at the moment (no pun intended).
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It's been some time since my last post. Blogging has not been an option for the past few weeks with other commitments going on. But you cannot stop doing what you love the most. So here I am back again fervently nudging away on the keyboard. I was analyzing the use of Cassandra for one of the projects I am working on. This post will focus on the getting started aspect with regard to Cassandra and mainly in terms of Windows because—fortunately or unfortunately—that is the operating system I am stuck with at the moment (no pun intended).
The latest Cassandra distribution can be downloaded at here.
I wanted to have the ability to run Cassandra as a Windows service. Here are the steps on how to get that done:
- Download Apache commons daemon here.
- Extract the Cassandra distribution to a location of your choice.
- Go into the
bindirectory of the Cassandra distribution you just extracted.
- Create a folder called
- Extract the Apache commons daemon distribution to a location of your choice.
- Copy the
prunsrv.exerelated to your architecture (32bit/64bit) to the
daemondirectory created inside the
bindirectory in your Cassandra distribution extract.
- Go into your
bindirectory via the command line and execute the following command:
That’s it. Now you have Cassandra installed as a Windows service which you can set to start automatically if that is what you prefer.
By default, authentication and authorization is disabled on Cassandra. Enabling this is a breeze with the Cassandra YAML configuration file. Go to the
conf directory of your Cassandra distribution where you will find a file named
cassandra.yaml. Open up this with your favorite text editor (Notepad++ is awesome. Just saying). Make the following changes to the already existing configuration:
Now that you have enabled authentication and authorization, you can go in and login to Cassandra. The super user in Cassandra has the following credentials which you must use to log in:
- User name:
To log in, let us go back to the
bin directory of the Cassandra distribution where you will find a batch file called
cqlsh. Bring up your command line again and execute the following command:
cqlsh -u cassandra -p cassandra
Now that you are in, if required you can go and change your super user password. One of the advantages of Cassandra for me is how similar the syntax is to relational databases. You can get up and running in a very short amount of time as the commands are very similar to traditional SQL. Cassandra has its own query language called CQL.
Next up, I was looking for a convenient GUI to interact with Cassandra. Browsing around, the most user-friendly interface I found was DBeaver which you can download from here.
On the next article, I will focus on functionality with respect to Cassandra and how your thinking pattern should change when working with Cassandra as it will not be the same as how you design a traditional database schema.
Published at DZone with permission of Dinuka Arseculeratne, DZone MVB. See the original article here.
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