我用kafkaconsumer批量消费数据， 无法获取获取批量， 从日志看offset提交也异常， 规律性的每3次提交成功一次， 数据每次获取一条， 无法批量获取。
困扰了两天了， 莫名啊。
public class KafkaManualConsumer
{
public static void main(String[] args)
{
Properties properties = new Properties();
System.setProperty("java.security.auth.login.config", "c:/kafka_client_jaas.conf"); //配置文件路径
properties.put("security.protocol", "SASL_PLAINTEXT");
properties.put("sasl.mechanism", "PLAIN");
properties.put("bootstrap.servers", "VM_0_16_centos:9092"); //kafka:9092
properties.put("enable.auto.commit", "false");
//properties.put("session.timeout.ms", 60000);
properties.put(ConsumerConfig.REQUEST_TIMEOUT_MS_CONFIG, 60000);
properties.put("fetch.max.wait.ms", 5000);
properties.put("max.poll.records", 5000);
properties.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
properties.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
properties.put("group.id", "yuu67u36");
// properties.put("receive.buffer.bytes", 3276800);
// properties.put("heartbeat.interval.ms", 59000);
// properties.put("client.id", "t4t5t234f34f3f");
// properties.put(ConsumerConfig.MAX_PARTITION_FETCH_BYTES_CONFIG, 32*1024*1024);
// properties.put(ConsumerConfig.FETCH_MAX_BYTES_CONFIG, 64*1024*1024);
// properties.put(ConsumerConfig.RECEIVE_BUFFER_CONFIG, 128*1024*1024);
//properties.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
// properties.put(ConsumerConfig.FETCH_MIN_BYTES_CONFIG, 2000*1024);
KafkaConsumer<String, String> kafkaConsumer = new KafkaConsumer<>(properties);
kafkaConsumer.subscribe(Arrays.asList("topic-video-dev-attendphotos"));
//kafkaConsumer.subscribe(Arrays.asList("topic-video-dev-stat"));
while (true)
{
ConsumerRecords<String, String> records = kafkaConsumer.poll(1000L);
System.out.println("-----------------");
System.out.println(records.count());
for (ConsumerRecord<String, String> record : records)
{
System.out.println("offset = " + record.offset());
VideoPhotoOuter dto = JSON.parseObject(record.value(), VideoPhotoOuter.class);
System.out.println(dto.getPhotos().get(0).getPhotoFmt());
//System.out.printf("offset = %d, value = %s", record.offset(), record.value());
}
try
{
kafkaConsumer.commitSync();
Thread.currentThread().sleep(1000L);
}
catch(Exception ex)
{
//手动抛出SQLException使用事务回滚
}
}
//kafkaConsumer.close();
}
}
下面是控制台日志
17:32:06.758 [main] INFO org.apache.kafka.clients.consumer.ConsumerConfig - ConsumerConfig values:
allow.auto.create.topics = true
auto.commit.interval.ms = 5000
auto.offset.reset = latest
bootstrap.servers = [VM_0_16_centos:9092]
check.crcs = true
client.dns.lookup = default
client.id = t4t5t234f34f3f
client.rack =
connections.max.idle.ms = 540000
default.api.timeout.ms = 60000
enable.auto.commit = false
exclude.internal.topics = true
fetch.max.bytes = 52428800
fetch.max.wait.ms = 5000
fetch.min.bytes = 1
group.id = yuu67u36
group.instance.id = null
heartbeat.interval.ms = 59000
interceptor.classes = []
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 = 5000
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 = 3276800
reconnect.backoff.max.ms = 1000
reconnect.backoff.ms = 50
request.timeout.ms = 60000
retry.backoff.ms = 100
sasl.client.callback.handler.class = null
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.login.callback.handler.class = null
sasl.login.class = null
sasl.login.refresh.buffer.seconds = 300
sasl.login.refresh.min.period.seconds = 60
sasl.login.refresh.window.factor = 0.8
sasl.login.refresh.window.jitter = 0.05
sasl.mechanism = PLAIN
security.protocol = SASL_PLAINTEXT
send.buffer.bytes = 131072
session.timeout.ms = 60000
ssl.cipher.suites = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
ssl.endpoint.identification.algorithm = https
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
.......................
........................
-----------------
0
17:32:08.068 [main] DEBUG org.apache.kafka.clients.consumer.internals.ConsumerCoordinator - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Committed offset 90261 for partition topic-video-dev-attendphotos-0
-----------------
0
17:32:10.095 [main] DEBUG org.apache.kafka.clients.consumer.internals.ConsumerCoordinator - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Committed offset 90261 for partition topic-video-dev-attendphotos-0
17:32:12.091 [main] DEBUG org.apache.kafka.clients.FetchSessionHandler - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Node 90 sent a full fetch response that created a new incremental fetch session 725149318 with 1 response partition(s)
17:32:12.092 [main] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Fetch READ_UNCOMMITTED at offset 90261 for partition topic-video-dev-attendphotos-0 returned fetch data (error=NONE, highWaterMark=93666, lastStableOffset = 93666, logStartOffset = 5372, preferredReadReplica = absent, abortedTransactions = null, recordsSizeInBytes=1048576)
17:32:12.120 [main] DEBUG org.apache.kafka.common.metrics.Metrics - Added sensor with name topic.topic-video-dev-attendphotos.bytes-fetched
17:32:12.120 [main] DEBUG org.apache.kafka.common.metrics.Metrics - Added sensor with name topic.topic-video-dev-attendphotos.records-fetched
17:32:12.121 [main] DEBUG org.apache.kafka.common.metrics.Metrics - Added sensor with name topic-video-dev-attendphotos-0.records-lag
17:32:12.121 [main] DEBUG org.apache.kafka.common.metrics.Metrics - Added sensor with name topic-video-dev-attendphotos-0.records-lead
17:32:12.122 [main] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Added READ_UNCOMMITTED fetch request for partition topic-video-dev-attendphotos-0 at position FetchPosition{offset=90262, offsetEpoch=Optional[0], currentLeader=LeaderAndEpoch{leader=VM_0_16_centos:9092 (id: 90 rack: null), epoch=0}} to node VM_0_16_centos:9092 (id: 90 rack: null)
17:32:12.122 [main] DEBUG org.apache.kafka.clients.FetchSessionHandler - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Built incremental fetch (sessionId=725149318, epoch=1) for node 90. Added 0 partition(s), altered 1 partition(s), removed 0 partition(s) out of 1 partition(s)
17:32:12.122 [main] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Sending READ_UNCOMMITTED IncrementalFetchRequest(toSend=(topic-video-dev-attendphotos-0), toForget=(), implied=()) to broker VM_0_16_centos:9092 (id: 90 rack: null)
-----------------
1
offset = 90261
JPG
17:32:12.239 [main] DEBUG org.apache.kafka.clients.consumer.internals.ConsumerCoordinator - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Committed offset 90262 for partition topic-video-dev-attendphotos-0
-----------------
0
17:32:14.256 [main] DEBUG org.apache.kafka.clients.consumer.internals.ConsumerCoordinator - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Committed offset 90262 for partition topic-video-dev-attendphotos-0
-----------------
0
17:32:16.279 [main] DEBUG org.apache.kafka.clients.consumer.internals.ConsumerCoordinator - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Committed offset 90262 for partition topic-video-dev-attendphotos-0
17:32:16.603 [kafka-coordinator-heartbeat-thread | yuu67u36] DEBUG org.apache.kafka.clients.FetchSessionHandler - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Node 90 sent an incremental fetch response for session 725149318 with 1 response partition(s)
17:32:16.603 [kafka-coordinator-heartbeat-thread | yuu67u36] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Fetch READ_UNCOMMITTED at offset 90262 for partition topic-video-dev-attendphotos-0 returned fetch data (error=NONE, highWaterMark=93668, lastStableOffset = 93668, logStartOffset = 5372, preferredReadReplica = absent, abortedTransactions = null, recordsSizeInBytes=1048576)
17:32:17.280 [main] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Added READ_UNCOMMITTED fetch request for partition topic-video-dev-attendphotos-0 at position FetchPosition{offset=90263, offsetEpoch=Optional[0], currentLeader=LeaderAndEpoch{leader=VM_0_16_centos:9092 (id: 90 rack: null), epoch=0}} to node VM_0_16_centos:9092 (id: 90 rack: null)
17:32:17.281 [main] DEBUG org.apache.kafka.clients.FetchSessionHandler - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Built incremental fetch (sessionId=725149318, epoch=2) for node 90. Added 0 partition(s), altered 1 partition(s), removed 0 partition(s) out of 1 partition(s)
17:32:17.281 [main] DEBUG org.apache.kafka.clients.consumer.internals.Fetcher - [Consumer clientId=t4t5t234f34f3f, groupId=yuu67u36] Sending READ_UNCOMMITTED IncrementalFetchRequest(toSend=(topic-video-dev-attendphotos-0), toForget=(), implied=()) to broker VM_0_16_centos:9092 (id: 90 rack: null)
-----------------
1
