我正在尝试使用schema registry的两个示例在集群模式下运行kafka，但是我不太确定如何配置第二个示例，以便在第一个示例关闭时接管它。
以下是第一个架构注册表示例的属性文件：

port=8081

# The address the socket server listens on.

# FORMAT:

# listeners = listener_name://host_name:port

# EXAMPLE:

# listeners = PLAINTEXT://your.host.name:9092

listeners=http://0.0.0.0:8081

# Zookeeper connection string for the Zookeeper cluster used by your Kafka cluster

# (see zookeeper docs for details).

# This is a comma separated host:port pairs, each corresponding to a zk

# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".

kafkastore.connection.url=localhost:2181,localhost:2182,localhost:2183

# Alternatively, Schema Registry can now operate without Zookeeper, handling all coordination via

# Kafka brokers. Use this setting to specify the bootstrap servers for your Kafka cluster and it

# will be used both for selecting the master schema registry instance and for storing the data for

# registered schemas.

# (Note that you cannot mix the two modes; use this mode only on new deployments or by shutting down

# all instances, switching to the new configuration, and then starting the schema registry

# instances again.)

# kafkastore.bootstrap.servers=localhost:9092

# The name of the topic to store schemas in

kafkastore.topic=_schemas

# If true, API requests that fail will include extra debugging information, including stack traces

debug=false

第二个文件应该是什么样的，这样它们既可以与zookeeper通信，又可以实现高可用性？