in flume-kafka-channel/src/main/java/org/apache/flume/channel/kafka/KafkaChannel.java [614:623]
private void poll() {
logger.trace("Polling with timeout: {}ms channel-{}", pollTimeout, getName());
try {
records = consumer.poll(Duration.ofMillis(pollTimeout));
recordIterator = records.iterator();
logger.debug("{} returned {} records from last poll", getName(), records.count());
} catch (WakeupException e) {
logger.trace("Consumer woken up for channel {}.", getName());
}
}