for (int i = 0; keysIterator.hasNext(); i++) {
Object key = keysIterator.next();
int keyLen = clBuffer.keyToBytes(key, buf, keyOffset);
md.reset();
md.update(buf, setOffset, setLen);
md.update(buf, keyOffset, keyLen);
byte[] digest = md.digest();
long partitionId = CLBuffer.get_ntohl_intel(digest, 0);