Are there any known pitfall in the "datastax-driver" library? cqlsh is sometimes stuck and the process shall be killed to help it out.
No, there is not. Thousands of organisations use the Java driver every day for their production systems.
cqlsh is just another client just like any other application. In my years of experience, I've never come across a situation where it gets "stuck". I would suggest you report it with the minimal steps to reproduce the problem although I would suspect that it is environmental given it's the first time I've heard of it. Cheers!
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