Well- as I said there isn't a reason not to. Licensing issues have even recently been worked out but I forgot about the sun.misc.unsafe work in 1.1+ so thanks Jonathan for correcting me.
> On Aug 14, 2013, at 12:36 PM, "José Elias Queiroga da Costa Araújo" > <je...@cesar.org.br> wrote: > > Hi Michael, > > In my investigation about Cassandra cache, there is an implementation > off-heap provided to RowCache, > but this implementation is based on ByteBuffer mechanish to allocate native > memory using JNI. > > However, In Datastax Cassandra documentation they say that: > "Installing JNA can improve Cassandra memory usage. > When installed and configured, Linux does not swap out the JVM, > and thus avoids related performance issues." > > So my question is if Cassandra cache implementation is based ByteBuffer, > there is any real reason to install JNA? > > Regards, > > > 2013/8/14 Michael Kjellman <mkjell...@barracuda.com> > >> No- not required, but there is zero reason not to. Keep as much off heap >> as possible. >> >>>> On Aug 14, 2013, at 12:13 PM, "José Elias Queiroga da Costa Araújo" < >>> je...@cesar.org.br> wrote: >>> >>> Hi all, I have a question. >>> >>> In order to activate cassandra row cache is necessary to have JNA >>> installed? >>> >>> Regards, >>> >>> *Elias.* >>
