flocker-control service in HA mode

[bipeens]

I have started using flocker in my cluster along with mesos and marathon.

1. Can I have multiple nodes running as flocker-control service?
2. If Yes : Is there any leader mechanism in flocker-control nodes? If any
   node goes down will that affect the cluster?
   If No: Considering if the flocker-control service node goes down. Is
   there any mechanism by which I can control such behavior similar to
   zookeeper in HA.

Also, I tried maintaining the /var/lib/flocker/current_configuration.json for control-service node. But when I try to use for my new created control-service node after the failure of first, I get certification issue.

[wallnerryan]

Hi @bipeens,

We are working toward adding HA, but currently it is not supported for the control service.

The way you can do this today is by maintaining /var/lib/flocker/current_configuration.json but also keeping the CA certificates / control certificates safe. When you bring up your new control-service it needs to have the same IP/DNS name as the old one, then things should pick back up.

[bipeens]

Thanks! Currently, we are looking forward to this feature. In our side, as nodes can't have same IP/DNS name it becomes difficult to maintain the state.

[tookko]

+1 for key/value store integration for maintaining state

[gufranmmu]

+1 vote for HA

[mkgong]

+1 vote for HA

[abrashid]

+1 vote for HA

[tairila]

+1 vote for HA

[tothman]

+1 vote for HA

[garybottom]

+1 vote for HA

[nikosch86]

+1 vote for HA