@BeforeClass
public static void init() {
sockDir = new TemporarySocketDirectory();
DomainSocket.disableBindPathValidation();
prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
NativeIO.POSIX.setCacheManipulator(new CacheManipulator() {
@Override
public void mlock(String identifier,
ByteBuffer mmap, long length) throws IOException {
LOG.info("mlocking " + identifier);
}