Thanks @dspivak. One last question: I see that clusterdock created 2 nodes. Are these virtual nodes?  My cluster itself has 2 nodes, each has 24 GB memory and 8 Cores. So: 1) How do I know if each of my physical node is being used as a clusterdock node. 2) Is there a way to map them? 3) Is there a way to create more than 2 nodes using clusterdock?   Again, thanks for your help!   ... View more

Many thanks, will switch to clusterdock.....looks very interesting btw 😉 ... View more

Thanks.   I followed the solution at Docker Installation On Fedora to install Docker's own yum repo. This allowed to me to upgrade to 1.12 and the clusterdock solution worked after that. ... View more

😞 ... View more

The first thing to do would be to look at the role log for the datanode that's not starting up. That'll typically have a stacktrace that points to what's wrong. ... View more

Yes Sir. Got it. The RAM was very less. I assigned 10 GB and now its working great and also I stopped and removed inwanted roles and services. So its working now. Thanks for your reply. ... View more