[
https://issues.apache.org/jira/browse/KAFKA-5766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16149153#comment-16149153
]
Sebastian Bernauer commented on KAFKA-5766:
-------------------------------------------
So i've tried the code above with the
{noformat}
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>1.2.2.RELEASE</version>
</dependency>
{noformat}
=> It caused the high cpu-load
If i change the dependency to
{noformat}
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>2.0.0.M3</version>
</dependency>
{noformat}
the cpu load is low, all works fine, it seems to be fixed.
To be totally sure i will upgrade the version of spring-kafka in our real
application and test if it solves our problem.
Unfortunately this causes some problems, so it takes some time. I will give an
update tomorrow.
But the original asked question is solved by upgrading spring-kafka to 2.0.0.M3
> Very high CPU-load of consumer when broker is down
> --------------------------------------------------
>
> Key: KAFKA-5766
> URL: https://issues.apache.org/jira/browse/KAFKA-5766
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Reporter: Sebastian Bernauer
>
> Hi,
> i have a single broker instance at localhost.
> I set up a Consumer with the following code:
> {code:java}
> Map<String, Object> configs = new HashMap<>();
> configs.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
> "localhost:9092");
> configs.put(ConsumerConfig.GROUP_ID_CONFIG, "gh399");
> configs.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,
> StringDeserializer.class);
> configs.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
> StringDeserializer.class);
> KafkaConsumer<String, String> consumer = new KafkaConsumer<>(configs);
> consumer.assign(Collections.singletonList(new TopicPartition("foo",
> 0)));
> while (true) {
> ConsumerRecords<String, String> records = consumer.poll(1000);
> System.out.println(records.count());
> }
> {code}
> This works all fine, until i shut down the broker.
> If i do so, it causes a 100% CPU-load of my application.
> After starting the broker again the usage decreases back to a normal level.
> It would be very nice if you could help me!
> Thanks,
> Sebastian
> Spring-Kafka: 2.0.0.M3
> Kafka: 0.10.2.0
> JDK: 1.8.0_121
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
