1c69574f23a05cab09f3a242a6cb250eb40bb55efdd3882e5a6a85255e6842a7d32f3df3efa44a92916e973c45597e8e8a25d1beebdeef2f22d970161f83d9cf  flink-1.2.1-bin-hadoop27-scala_2.11.tgz