Created 05-08-2017 04:51 PM
I'm creating a CSD for a custom service with multiple roles. Some of the roles need to have knowledge of which host(s) other roles are running on, similar to how a NameNode needs to know which hosts have DataNodes.
I think this information should be accessible somehow after a user has chosen the role hosts in the CM UI, but I can't figure out how.
So, how can I access a role's hostname from the service.sdl or control.sh files?
Created 05-11-2017 05:13 PM
I've figured out a way to do this. I used peerConfigGenerators in the SDL file. Peer configs create a properties file with key/value pairs--the key/value pairs themselves weren't useful to me, but each line of the file is prepended by hostname that the chose role is running on. I then parsed that file for the hostname in the control script.
Created 05-08-2017 05:49 PM
Dont mistake me I am not savy when it comes to CSD . I have few links in my desktop sleeping.
I believe it might come handy for you. if I understand correctly these links should gear you up.
https://github.com/cloudera/cm_ext/wiki
https://github.com/cloudera/cm_csds
Created 05-09-2017 01:47 PM
Thanks for the reply @csguna. I have seen those links before, and haven't found the answer I'm looking for yet.
Created 05-10-2017 04:06 AM
@benbluetalonMy bad mate.
Created 05-11-2017 05:13 PM
I've figured out a way to do this. I used peerConfigGenerators in the SDL file. Peer configs create a properties file with key/value pairs--the key/value pairs themselves weren't useful to me, but each line of the file is prepended by hostname that the chose role is running on. I then parsed that file for the hostname in the control script.
Created 05-11-2017 06:24 PM
Sounds good .