What version are you using ? As of 1.1 off heap caches no longer require JNA https://github.com/apache/cassandra/blob/trunk/NEWS.txt#L327
Also the row and key caches are now set globally not per CF https://github.com/apache/cassandra/blob/trunk/NEWS.txt#L324 Cheers ----------------- Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 1/03/2013, at 1:33 AM, Jason Wee <peich...@gmail.com> wrote: > This happened sometime ago, but for the sake of helping others if they > encounter, > > each column family has a row cache provider, you can read into the schema, > for example : > > ... > and row_cache_provider = 'SerializingCacheProvider' > ... > > it cannot start the cache provider for a reason and as a result, default to > the ConcurrentLinkedHashCacheProvider. > > the serializing cache provider require jna lib, and if you place the library > into cassandra lib directory, then this warning should not happen again. >
