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by Ygor 4055 days ago
The problem is that alternatives to ZooKeeper, like etcd or Consul, are too different.

They do solve similar problems, but their interface and their operational side is different. This would require some major work for the current ZooKeeper users.

As far as I know, there is no current system that tries to implement the same interface as ZooKeeper so that you could just plug it in wherever ZK is expected.