DataStax Academy FAQ

DataStax Academy migrated to a new learning management system (LMS) in July 2020. We are also moving to a new Cassandra Certification process so there are changes to exam bookings, voucher system and issuing of certificates.

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question

btenlighted avatar image
btenlighted asked ·

What is the difference between DSC and DDAC?

[FOLLOW UP QUESTION TO #6812]

On the other comment, we are using the following dependency. I think it is "Datastax distribution of apache cassandra". Whats the difference between the DDC Vs DSC?

<dependency>
<groupId>com.datastax</groupId>
<artifactId>datastax-ddc</artifactId>
<version>3.9.0</version>
<type>tgz</type>
</dependency>

ddacdatastax community edition
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1 Answer

Erick Ramirez avatar image
Erick Ramirez answered ·

DataStax Community (DSC) edition is a free packaged version of open-source Apache Cassandra certified by DataStax for production use. For all intents and purposes, it is identical to open-source Cassandra but the package was tested, certified and distributed by DataStax.

The first DSC release for C* 1.1 was back in 2013. DataStax last released DSC with C* 3.0.9 in 2017.

[EDIT] DataStax Distribution of Cassandra (DDC) is a free packaged version of the "tick-tock" releases of open-source Apache Cassandra certified by DataStax for production use.

The first DDC release was for C* 3.1 in 2016. The last version released in 2017 was for C* 3.9.0.

DataStax Distribution of Apache Cassandra (DDAC) is a paid distribution of Cassandra which is compatible with open-source Apache Cassandra 3.11 that includes production-certified enhancements equivalent to the enhancements included with DSE 5.1.

For example, the first release DDAC 5.1.11 contains the core database features and improvements included in DSE 5.1.11. DDAC 5.1.18 was the last version released in April 2020.

DSC and DDC are no longer supported. If you're looking for a supported version of Cassandra, DDAC is superseded by DataStax Luna -- Enterprise Support for Apache Cassandra™ from the experts at DataStax and [recently-acquired team at] The Last Pickle. You can try DataStax Luna for free. Just let me know and I'd be happy to reach out internally on your behalf. Cheers!

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I think I am confused. We are using the above mentioned datastax-ddc 3.9.0 artifact in production today and I am 99% sure that its not a paid subscription. Can you double check? Or, are you saying that version 5.1.18 onward it is a paid subscription?


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I've gone back to trace and worked out what DDC is so I've since updated my answer. C* 3.9.0 was released in 2016 so it's very difficult to find information about these unsupported versions.

There really is no valid reason to be running DDC 3.9.0. The tick-tock releases between C* 3.0 and C* 3.11 were dropped and not maintained. You should instead be using C* 3.11.7. Cheers!

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