[Linux-cluster] Cluster v2 online adding nodes?

[Jeff Sturm]

> -----Original Message-----
> Can I add or remove a node from cluster by just adding/removing it
from
> cluster.conf? Is that kind of cluster reconfiguration supported
without
> reboots?

Provided your cluster has more than 2 nodes, this should work fine.  (I
believe two node clusters are special.)

Make sure you bump the version number of cluster.conf after any change.
We also run "ccs_tool update" afterwards to propagate the new config to
other nodes before starting cman on the new node.  If removing a node,
we stop it before removing from the config file.

Jeff