final int keyLimit = (Integer)options.get(LIMIT);
final int batchSize = (Integer)options.get(BATCH_SIZE);
final int skip = (Integer)options.get(SKIP);
final int ttl = (Integer)options.get(TTL);
final int rate = (Integer)options.get(RATE);
NodeDiscoveryType discovery = (NodeDiscoveryType)options.get(DISCOVER);
// connect to src cluster.
String[] srcParts = options.get(SRC).toString().split(":", -1);
final AstyanaxContext<Keyspace> srcContext = connect(srcParts[0], Integer.parseInt(srcParts[1]), srcParts[2], readThreads, discovery);
final Keyspace srcKeyspace = srcContext.getEntity();