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Cassandra with OpenJDK

190 views23rd April 2025
2
Stefan Schedletzky [DevOps Enabler]2.06K 23rd April 2025 1 Comment

Hi Dojo,

we have an internal request to replace Oracle Java to Open JDK. We have still the old setup but planning the move to a cluster. In between we still need to change to Open JDK. Is it just the replacement of the Java folder and change the %JAVA_HOME%?

What I'm missing?

Wale Oguntoyinbo [SLC] [DevOps Advocate] Posted new comment 23rd April 2025
Wale Oguntoyinbo [SLC] [DevOps Advocate] commented 23rd April 2025

Typically, all you need to do is install Open JDK and update the JAVA_HOME path. Running 'java -version' should point to the openJDK installation indicating the update is correct.

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Tarik Pleho [SLC] [DevOps Advocate]110 Posted 23rd April 2025 0 Comments

Hi Stefan,

I think you are on the right track. Firstly, I would suggest checking the compatibility between your Open JDK and Cassandra. After that, installing or extracting that Open JDK would be the next step.

I think that changing the environment variables should be enough.

Instead of using a hardcoded specific path for Java, Cassandra relies on the Java environment (mostly JAVA_HOME).

Hope this helps

Tarik Pleho [SLC] [DevOps Advocate] Answered question 23rd April 2025
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