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Why is there still a JNA error when starting Cassandra, even jna.jar and platform.jar are in the lib directory?

I downloaded and copied Jna.jar and Platform.jar to the / usr / cassandra / apache -cassandra-1.0.7 / lib folder, but still see the following error when starting Cassandra, am I missing something?

"On cassandra JNA not found. Native methods will be disabled."

And this is where I get Jna.jar and Platform.jar

https://github.com/downloads/twall/jna/jna.jar https://github.com/downloads/twall/jna/platform.jar

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1 answer

Based on the suggestions in the comments .

Ubunto 12.10
Kassandra 1.1.6

I fixed it on

sudo apt-get install libjna-java
sudo ln -s /usr/share/java/jna.jar /usr/share/cassandra/lib
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