https://community.cloudera.com/t5/Support-Questions/How-to-do-remote-debugging-for-Apache-Hadoop-Client-e-g/m-p/213751#M175675 <P>I have the same problem (HDP 2.6, vmware).</P><P>Reading a lot of related answers I believe that the problem is port forwarding and/or docker configuration.</P><P>What has to be done to enable acess to a specific port (9999 in the example above) of the sandbox?</P><P>(Probably the same is done for scp - the sandbox is accessed via port 2222 though there is nothing listening at port 2222 in the sandbox.)</P><P>Unfortunately the most useful commands for examining this problem are not installed in the docker machine (e.g. ifconfig, netstat, ...)</P> Wed, 27 Sep 2017 20:47:28 GMT Eddie7 2017-09-27T20:47:28Z