提问说明
使用命令行发布消息,使用api消费消息失败。使用命令行能正常消费。
消费者代码如下:
Properties props = new Properties();
props.setProperty("bootstrap.servers", "localhost:9092");
props.setProperty("group.id", "test");
props.setProperty("enable.auto.commit", "true");
props.setProperty("auto.commit.interval.ms", "1000");
props.setProperty("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
props.setProperty("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);
consumer.subscribe(Arrays.asList("test"));
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());
}
贴上报错信息
[main] INFO 2019-05-30 17:02:35.286 o.a.k.c.c.ConsumerConfig[238] - ConsumerConfig values:
auto.commit.interval.ms = 1000
auto.offset.reset = latest
bootstrap.servers = [localhost:9092]
check.crcs = true
client.id =
connections.max.idle.ms = 540000
enable.auto.commit = true
exclude.internal.topics = true
fetch.max.bytes = 52428800
fetch.max.wait.ms = 500
fetch.min.bytes = 1
group.id = test
heartbeat.interval.ms = 3000
interceptor.classes = null
internal.leave.group.on.close = true
isolation.level = read_uncommitted
key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
max.partition.fetch.bytes = 1048576
max.poll.interval.ms = 300000
max.poll.records = 500
metadata.max.age.ms = 300000
metric.reporters = []
metrics.num.samples = 2
metrics.recording.level = INFO
metrics.sample.window.ms = 30000
partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor]
receive.buffer.bytes = 65536
reconnect.backoff.max.ms = 1000
reconnect.backoff.ms = 50
request.timeout.ms = 305000
retry.backoff.ms = 100
sasl.jaas.config = null
sasl.kerberos.kinit.cmd = /usr/bin/kinit
sasl.kerberos.min.time.before.relogin = 60000
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
sasl.kerberos.ticket.renew.window.factor = 0.8
sasl.mechanism = GSSAPI
security.protocol = PLAINTEXT
send.buffer.bytes = 131072
session.timeout.ms = 10000
ssl.cipher.suites = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
ssl.endpoint.identification.algorithm = null
ssl.key.password = null
ssl.keymanager.algorithm = SunX509
ssl.keystore.location = null
ssl.keystore.password = null
ssl.keystore.type = JKS
ssl.protocol = TLS
ssl.provider = null
ssl.secure.random.implementation = null
ssl.trustmanager.algorithm = PKIX
ssl.truststore.location = null
ssl.truststore.password = null
ssl.truststore.type = JKS
value.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
[main] INFO 2019-05-30 17:02:36.434 o.a.k.c.u.AppInfoParser[109] - Kafka version : 1.0.1
[main] INFO 2019-05-30 17:02:36.434 o.a.k.c.u.AppInfoParser[110] - Kafka commitId : c0518aa65f25317e
[main] INFO 2019-05-30 17:02:36.789 o.a.k.c.c.i.AbstractCoordinator[341] - [Consumer clientId=consumer-1, groupId=test] Discovered group coordinator DESKTOP-2LPADH2.localdomain:9092 (id: 2147483647 rack: null)
[main] INFO 2019-05-30 17:02:36.832 o.a.k.c.c.i.AbstractCoordinator[341] - [Consumer clientId=consumer-1, groupId=test] Marking the coordinator DESKTOP-2LPADH2.localdomain:9092 (id: 2147483647 rack: null) dead
问题已解决,配置文件中此配置默认没有打开。打开就好了
ok
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