'number of socket connection in Spring Kafka

I'm trying to understand how socket connections are open when connecting to Kafka using spring Kafka. I have the following code to connect to a Kafka topic named test which has 32 partitions.

application.yml

spring:
 kafka:
    bootstrap-servers: testbroker:9092     
    consumer:          
      enable-auto-commit: false
      auto-offset-reset: earliest
      spring.kafka.consumer.key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      spring.kafka.consumer.value-deserializer: org.springframework.kafka.support.serializer.JsonDeserializer
      group-id: test
      properties:
        max.poll.records: 125
        partition.assignment.strategy: org.apache.kafka.clients.consumer.RoundRobinAssignor
    
    listener:
      type: single
      ack-mode: batch

following java class to listen to Kafka topic


@Component
public class GenericKafkaMessageListener {
    
     @KafkaListener(topics = "test-topic", concurrency = "32") throws Exception {
         
         log.info("message - {}", message); 
         
     }
     
}

I'm trying to understand how many connections/socket connections are open in this case. I assume that these connections are long lived connection, I want to see if it is possible to can reuse these connection with some kind of connection pool. Thanks in advance

Solution 1:^[1]

The clients first connect to one of the bootstrap servers; the server responds with the advertised listeners for each broker and the clients then connect to those servers that are the leaders for individual topics/partitions; AFAIK, there is no way to share these connections.

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Solution 1	Gary Russell

'number of socket connection in Spring Kafka

Solution 1:[1]

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Solution 1:^[1]