Hi, 

I start my quickstart VM and enter the terminal the following:

sqoop import-all-tables \
-m 1 \
--connect jdbc:mysql://quickstart.cloudera:3306/retail_db \
--username=retail_dba \
--password=cloudera \
--compression-codec=snappy \
--as-avrodatafile \
--warehouse-dir=/user/hive/warehouse

but get the following error

failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
Streaming Command Failed!
Error in mr(map = map, reduce = reduce, combine = combine, in.folder = if (is.list(input)) { :
hadoop streaming failed with error code 5

any help is appreciated. I am just a beginner and I dont know anything thanks.