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There will be 2 paths within config
/config/clients/<client_id>
/config/topics/<topic_name>

Internally, the znodes are comma-separated key-value pairs where key represents the configuration property to change.
{"version": x, "config" : {X1= : Y1, X2= : Y2..}}

Upon startup, all brokers will load all the configs from zookeeper. In order to receive notifications, it's undesirable to watch every path under the root config directory. We can model change notifications the same way as they are currently handled for topic based configs. Here is the workflow for changing or adding a config of any type:

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