[kafka-producer-network-thread|producer-1]WARNorg.apache.kafka.clients.NetworkClient-[ProducerclientId=producer-1]Errorconnectingtonodexxxxx:9092(id:1rack:null)java.net.UnknownHostException:xxxxxatjava.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:797)atjava.base/java.net.InetAddres

报错内容：warn报错： [kafka-producer-network-thread|producer-1]WARN org.apache.kafka.clients.NetworkClient-[ProducerclientId=producer-1]Errorconnectingtonodexxxxx:9092(id:1rack:null)java.net.UnknownHostException:xxxxx   atjava.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:797)   atjava.base