Comment 3 for bug 1179805

I was also thinking about a use-case where I can do maintenance on the node such that the maintenance work does not affect other nodes in the cluster. For example i could be doing a backup on the node using xtrabackup and that can consume a lot of IO and thats going to affect the whole cluster. There can be other cases, for example running mysqldump can also cause issues that can affect other nodes because if one node can't keep up its going to affect other nodes.