use relative path for the app master jar and executable cmd.

Signed-off-by: Shanyu Zhao <shzhao@microsoft.com>
fix sleep in MyExecShell.cmd

Signed-off-by: Shanyu Zhao <shzhao@microsoft.com>
Use ping delay instead of powershell start-sleep cmdlet.

Signed-off-by: Shanyu Zhao <shzhao@microsoft.com>
Add parameter to specify container number, add code to print cluster nodes.

Signed-off-by: Shanyu Zhao <shzhao@microsoft.com>