An external configuration to override the host ip

[ahmet-uyar]

Hi @chathurawidanage, this pull request looks good. It does not harm anything as you mentioned. I think @supunkamburugamuve was wondering whether we can have a better solution that will programmatically determine correct IP address for the job-master node.

One possibility solution may be to get all probably IP addresses for the job master node and send them to workers. Then, workers can try all of them. If any one of them reachable, they can connect with it to JM.

[supunkamburugamuve]

There is a maven dependency issue when building. I think the resource scheduler depends on comms package that causes the issue

[DImuthuUpe]

Closing due to merge conflicts. Will submit a new PR