No stats being printed to logs

[coding-yogi]

Description

I am using a custom context with below code

 struct CustomContext; 
 impl ConsumerContext for CustomContext {} 
 impl ClientContext for CustomContext { 
    fn stats(&self, statistics: rdkafka::Statistics) {
        log::info!("{:?}", statistics);                
    } 
} 

This context is then passed to create a BaseConsumer client . The statistics.interval.ms is being set to 10000 in ClientConfig

How to reproduce

1. Create context as defined above
2. set following in config client_config.set("statistics.interval.ms", "10000");
3. Create base consumer with context

 let context = CustomContext;
 let base_consumer = BaseConsumer::from_config_and_context(config, context)?;

4. Once consumer is created, I just loop

loop {
  //sleep 1 sec
}

5. I expect logs to be printed with via stats method every 10 secs

Checklist

• [x] rdkafka version : v0.36.2
• [x] Apache Kafka version: Bitnami Kafka Docker image

               "OS_ARCH=amd64",
               "OS_FLAVOUR=debian-12",
               "OS_NAME=linux",
               "APP_VERSION=3.7.0",
               "BITNAMI_APP_NAME=kafka",

• [x] client configuration: statistics.interval.ms=10000
• [x] Host Operating system: Ubuntu

[Guyzeroth]

Hello, did you subscribe the consumer to a topic first? Try that and then call poll().