When you try download Spark 2.0.1 from official webpage you get this error:
<Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message><Key>spark-2.0.1-bin-hadoop2.7.tgz</Key><RequestId>6EA5F8FFFE6CCAEF</RequestId><HostId>g8UIuHetxWoGE0J/w2UtHn7DjKwATRKtHHHKu/2Mj2SmUPhPBZ+aoDPb+2uwn5J4Uj2voQa8WKg=</HostId></Error> Just saying, to let Spark people to know it.