Hello,
We are trying to make a consumer for kafka, (client code alone and camel
integrated) and we ended in a blocking point.
Can you please give us an advice, or any other idea?
Our problem:
- We create a kafka consumer that connects to a wrong server (wrong
ip/port), and the consumer get stuck in "poll" method even the connection is
not created.
- We tried also with camel, but the same problem (as the same kafka
client is called)
- It seems that there is a bug in kafka java client that the
connection ends up in a loop
- For producer everything is fine.
Do you have any advice, or can you confirm that there is a bug? Do you plan to
fix this? Our production code will be with camel, so there will be needed an
exception to be thrown so we can make our data error handling.
How can we make the consumer throw exception if the connection to server is not
created successfully or the connection is lost at some point?
Our environment:
Standalone:
<dependencies>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.11</artifactId>
<version>0.10.0.0</version>
</dependency>
With camel:
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-kafka</artifactId>
<version>2.17.0.redhat-630187</version>
</dependency>
The dummy code example is attached.
Or camel:
//server do not exist
from("kafka:10.97.210.222:8093?topic=testTopic_mip133&groupId=testing&autoOffsetReset=earliest&consumersCount=1").process(new
Processor(
) {
@Override
public void process(Exchange exchange) throws Exception {
LOG.info(new MsbHeaderImpl(), "Am primit header: " +
exchange.getIn().getHeaders());
LOG.info(new MsbHeaderImpl(), "Am primit body: " +
exchange.getIn().getBody());
}
});
Kafka server version: kafka_2.10-0.10.1.0
Thanks,
Vlad
Geschaeftsanschrift/Business Address: METRO SYSTEMS GmbH, Metro-Strasse 12,
40235 Duesseldorf, Germany
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van Herwijnen
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