Java Operation Kafka execution is unsuccessful

Source: Internet
Author: User

Use the kafka-clients operation kafka is always unsuccessful, the reasons are unclear, the following posted related code and configuration, please know how to guide, thank you!

Environment and dependence
<dependency>    <groupId>org.apache.kafka</groupId>    <artifactId>kafka-clients</artifactId>    <version>0.10.2.0</version></dependency>

JDKVersion 1.8, Kafka version 2.12-0.10.2.0 , server use CentOS-7 build.

Test code
    • Testbase.java

public class TestBase {    protected Logger log = LoggerFactory.getLogger(this.getClass());    protected String kafka_server = "192.168.60.160:9092" ;    protected String topic = "zlikun_topic";}
    • Producertest.java

public class Producertest extends Testbase {protected Properties props = new properties ();        @Before public void init () {props.put (producerconfig.bootstrap_servers_config, kafka_server);        Props.put (Producerconfig.acks_config, "all");        Props.put (producerconfig.retries_config, 0);        Props.put (Producerconfig.batch_size_config, 16384);        Props.put (Producerconfig.linger_ms_config, 1);        Props.put (Producerconfig.buffer_memory_config, 33554432);        Props.put (Producerconfig.key_serializer_class_config, Stringserializer.class);        Props.put (Producerconfig.value_serializer_class_config, Stringserializer.class);    Props.put (Producerconfig.partitioner_class_config, Mypartitioner.class); } @Test public void Test () throws Interruptedexception {kafkaproducer<string, string> producer = new K        Afkaproducer<> (props); Send message for (int i = 0; i < i++) {producer.send (new producerrecord<stRing, string> (topic, integer.tostring (i), integer.tostring (i)), new Callback () {@Override                        public void Oncompletion (Recordmetadata recordmetadata, Exception e) {if (E = = null) {                    System.out.printf ("offset =%d, partition =%d \ n", Recordmetadata.offset (), recordmetadata.partition ());                    } else {log.error ("Send Error!", e);        }                }            });        } TimeUnit.SECONDS.sleep (3);    Producer.close (); }}
    • Consumertest.java

public class Consumertest extends Testbase {private Properties props = new properties ();        @Before public void init () {props.put (consumerconfig.bootstrap_servers_config, kafka_server);        Props.put (Consumerconfig.group_id_config, "Zlikun");        Props.put (Consumerconfig.enable_auto_commit_config, "true");        Props.put (Consumerconfig.auto_commit_interval_ms_config, "1000");        Props.put (Consumerconfig.key_deserializer_class_config, Stringdeserializer.class);    Props.put (Consumerconfig.value_deserializer_class_config, Stringdeserializer.class);        } @Test public void Test () {consumer<string, string> Consumer = new kafkaconsumer<> (props);        Consumer.subscribe (arrays.aslist (topic));//Consumer.assign (Arrays.aslist (New Topicpartition (topic, 1));            while (true) {consumerrecords<string, string> records = Consumer.poll (100); For (consumerrecord<string, string> record:records) {               System.out.printf ("offset =%d, key =%s, value =%s%n", Record.offset (), Record.key (), Record.value ()); }        }    }}
Problem
# 测试topic为手动创建$ bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 4 --topic zlikun_topic

Console output Information

[Kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 2 record (s) For zlikun_topic-3:30042 Ms have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 2 record (s) For zlikun_topic-3:30042 Ms have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 2 record (s) For zlikun_topic-2:30042 Ms have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 2 record (s) For zlikun_topic-2:30042 Ms have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 3 record (s) For zlikun_topic-1:30043 MS have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 3 record (s) For zlikun_topic-1:30043 MS have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 3 record (s) For zlikun_topic-1:30043 MS have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] Error Com.zlikun.mq.producertest-send error!org.apache.kafka.common.errors.timeoutexception:expiring 3 record (s) For zlikun_topic-0:30046 Ms have passed since batch creation plus linger Time[kafka-producer-network-thread | producer-1] ERROR Com.zlikun.mq.producertest-send Error!org.apache.kafka.common.errors.timeoutexception:expiring 3 record (s) for zlikun_topic-0:30046 Ms have passed since BA TCH creation plus Linger Time[kafka-producer-network-thread | producer-1] Error com.zlikun.mq.producertest-send error!o Rg.apache.kafka.common.errors.TimeoutException:Expiring 3 record (s) for zlikun_topic-0:30046 Ms have passed since batch C Reation Plus linger time

Java Operation Kafka execution unsuccessful >> Java

The answer is quite clear:
Http://www.goodpm.net/postreply/java/1010000008863969/Java Operation Kafka Execution is unsuccessful. html

Java Operation Kafka execution is unsuccessful

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.