Unable to connect multiple host using RabbitMQ Connector

i have used same implemention provided in below link
https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/connectors/datastream/rabbitmq/

when i using with multiple host with comma separated get below issue 
 

at org.apache.flink.streaming.connectors.rabbitmq.RMQSource.open(RMQSource.java:267)
    at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:34)
    at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:100)
    at org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.initializeStateAndOpenOperators(RegularOperatorChain.java:110)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreGates(StreamTask.java:711)
    at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.call(StreamTaskActionExecutor.java:100)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreInternal(StreamTask.java:687)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.restore(StreamTask.java:654)
    at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:958)
    at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
    at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:766)
    at org.apache.flink.runtime.taskmanager.Task.run(Task.java:575)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.UnknownHostException: No such host is known (10.43.2.678,10.36.2.254,10.36.2.255)
    at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:928)
    at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1514)
    at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:847)
    at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1504)
    at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1363)
    at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1297)
    at com.rabbitmq.client.DnsRecordIpAddressResolver.resolveIpAddresses(DnsRecordIpAddressResolver.java:83)
    at com.rabbitmq.client.DnsRecordIpAddressResolver.getAddresses(DnsRecordIpAddressResolver.java:73)
    at com.rabbitmq.client.impl.recovery.RecoveryAwareAMQConnectionFactory.newConnection(RecoveryAwareAMQConnectionFactory.java:58)
    at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.init(AutorecoveringConnection.java:156)
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1130)
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1087)
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1045)
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1207)
    at org.apache.flink.streaming.connectors.rabbitmq.RMQSource.setupConnection(RMQSource.java:204)
    at org.apache.flink.streaming.connectors.rabbitmq.RMQSource.open(RMQSource.java:240)
    ... 12 more!MicrosoftTeams-image (59).png!