I have the same error (using either IP address or /etc/hosts entry): ssh root@sandbox-hdf.hortonworks.com -p 12222 ssh: connect to host sandbox-hdf.hortonworks.com port 12222: Connection refused ssh root@172.17.0.2 -p 12222 --> ssh: connect to host 172.17.0.2 port 12222: Connection refused I am using a fresh Dockerized HDF sandbox installed (today) on Ubuntu 16.04 - with the Trucking IoT tutorial set up from here: https://github.com/orendain/trucking-iot/tree/hadoop-summit-2017#setup-on-existing-hdf-hdp The weird thing is that the 'shell-in-a-box' works fine (with either IP address or /etc/hosts entry): http://sandbox-hdf.hortonworks.com:4200 http://172.17.0.2:4200 Anyone have any ideas on what might be amiss? Is this biting anyone else? Thanks ... View more

So why not create a sandbox (and tutorials) for either HDP (only) or HDP+HDF (combined)? The HDF sandbox isn't even useful for the HDF tutorials - since it lacks HDFS, HBASE, Superset, Druid, etc. The HDF sandbox seems to be defective as a learning vehicle. The crippled/limited HDF-only sandbox doesn't seem suited to it's purpose. What am I missing? ... View more