So what precisely changed? You've got a custom build based on the jar name, 
which is perfectly reasonable, but what upgrade did you do? 2.2.5 to 2.2.6 ? 
Any other changes?


On 2017-07-20 05:41 (-0700), William Boutin <william.bou...@ericsson.com> 
wrote: 
> Thank you for your help.
> We have been using jna-4.0.0.jar since using Cassandra 2.2(.6). Until last 
> week, we had no issues. Now, we are experiencing the exception that I 
> identified. We only have jna-4.0.0.jar loaded on our machines and the 
> CLASSPATH that Cassandra builds only uses the jar from the 
> /usr/share/cassandra/lib directory. Jna-3.2.4.jar was only introduced when I 
> was debugging the original issue and will never be loaded on our machines. 
> See the output of ps below.
> 
> Should I be looking elsewhere? Some have brought up that low memory on a JVM 
> or LINUX machine could cause jar loading issues. I have tried doubling 
> -Xss256k to -Xss512k.
> 
> Thanks
> 
> Billy S. Boutin 
> Office Phone No. (913) 241-5574 
> Cell Phone No. (732) 213-1368 
> 


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