What is the correct format for a ZooKeeper ensemble member's server configuration line?

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Multiple Choice

What is the correct format for a ZooKeeper ensemble member's server configuration line?

Explanation:
In a ZooKeeper ensemble, each server is defined with an ID and two ports after the hostname in the server line. The first port is used for regular inter-server communication within the cluster (the port used for leader-to-followers communication during normal operation), and the second port is used for the leader election process when electing a new leader. Therefore, the correct format places the leader communication port first, followed by the election port: server.<myid>=<hostname>:<leaderport>:<electionport>. This line must also correspond to the ID stored in the myid file on that server, and both ports should be reachable by other ensemble members. The client-facing port (usually 2181) is separate and not part of this server line.

In a ZooKeeper ensemble, each server is defined with an ID and two ports after the hostname in the server line. The first port is used for regular inter-server communication within the cluster (the port used for leader-to-followers communication during normal operation), and the second port is used for the leader election process when electing a new leader. Therefore, the correct format places the leader communication port first, followed by the election port: server.=::.

This line must also correspond to the ID stored in the myid file on that server, and both ports should be reachable by other ensemble members. The client-facing port (usually 2181) is separate and not part of this server line.

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