@bruce lee I found the same problem - are you using WinRAR or similar to extract the files? Gzip files normally extract to the same name as the file, only losing the .gz extension, but the original filename is stored in the compressed version; the standard *ix commandline gunzip tool has a -N option to extract using the original filename, but WinRAR does this by default. The .gz files in RefineDemoData.zip have been renamed, and the demo steps require these names, not the original ones. I can't see an option to disable this WinRAR behaviour, so I suspect you'll have to rename the files after extraction. @Kuldeep Kulkarni as this is a pretty likely use case, perhaps you could update the zip to contain files which were named appropriately before compression? ... View more

Here are the full instructions, and a screenshot from "localhost:8888". Login into your Sandbox VM, using for example Putty or Cygwin prompt on Windows or iTerm. There is also a built-in command-line client available at http://localhost:4200. In case of a command-line client type "ssh -p2222 root@localhost", the initial password is "hadoop". The system will ask you to change your password, so do it and select a new one. Here is a screenshot, if you use the CLI at localhost:4200 After you login as root to your VM, type "ambari-admin-password-reset" and set your new Ambari admin's password. Open Ambari at http://localhost:8080 and login as admin, and the password set in Step 2. Enjoy playing with the Sandbox! And here is a screenshot from "http://localhost:8888". As you can see, there are also options to access Atlas, Zeppelin, Falcon, and Ranger. ... View more