public void finishConnect() throws IOException {
    socketChannel.finishConnect();
    key.interestOps(key.interestOps() & ~SelectionKey.OP_CONNECT | SelectionKey.OP_READ);
  }
Actions taken as part of finishing a connection initiation. This will be called by client when server accepting
its connection request.
@throws IOException
ambry-network/src/main/java/com/github/ambry/network/Transmission.java