Eric Bowman created KAFKA-3011:
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Summary: Consumer.poll(0) blocks if Kafka not accessible
Key: KAFKA-3011
URL: https://issues.apache.org/jira/browse/KAFKA-3011
Project: Kafka
Issue Type: Bug
Components: clients
Affects Versions: 0.9.0.0
Environment: all
Reporter: Eric Bowman
Because of this loop in ConsumerNetworkClient:
public void awaitMetadataUpdate() {
int version = this.metadata.requestUpdate();
do {
poll(Long.MAX_VALUE);
} while (this.metadata.version() == version);
}
...if Kafka is not reachable (perhaps not running, or other network issues,
unclear), then KafkaConsumer.poll(0) will block until it's available.
I suspect that better behavior would be an exception
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