以下是用于创建使用者的属性：

Map<String, Object> props = new HashMap<>();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, KafkaAvroDeserializer.class);
props.put(KafkaAvroSerializerConfig.VALUE_SUBJECT_NAME_STRATEGY,
TopicRecordNameStrategy.class.getName());
props.put("schema.registry.url", schemaRegistryUrl);
props.put(ConsumerConfig.ALLOW_AUTO_CREATE_TOPICS_CONFIG, true);
props.put(ConsumerConfig.GROUP_ID_CONFIG, groipId);
props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
props.put(ConsumerConfig.PARTITION_ASSIGNMENT_STRATEGY_CONFIG,
"org.apache.kafka.clients.consumer.RoundRobinAssignor");
props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");

> java.lang.OutOfMemoryError: Java heap space 2020-11-05 12:07:31,002
> ERROR [consumer-10-C-1] [] org.springframework.core.log.LogAccessor:
> Stopping container due to an Error java.lang.OutOfMemoryError: Java
> heap space 2020-11-05 12:07:30,999 ERROR [consumer-5-C-1] []
> org.springframework.core.log.LogAccessor: Stopping container due to an
> Error java.lang.OutOfMemoryError: Java heap space     at
> java.base/java.nio.HeapByteBuffer.<init>(Unknown Source)  at
> java.base/java.nio.ByteBuffer.allocate(Unknown Source)    at
> org.apache.kafka.common.memory.MemoryPool$1.tryAllocate(MemoryPool.java:30)
>   at
> org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:113)
>   at
> org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:447)
>   at
> org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:397)
>   at
> org.apache.kafka.common.network.Selector.attemptRead(Selector.java:678)
>   at
> org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:580)
>   at org.apache.kafka.common.network.Selector.poll(Selector.java:485)
>   at
> org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:550)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:262)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:233)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:212)
>   at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:236)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:469)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.updateAssignmentMetadataIfNeeded(KafkaConsumer.java:1274)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1238)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1173)
>   at brave.kafka.clients.TracingConsumer.poll(TracingConsumer.java:89)
>   at brave.kafka.clients.TracingConsumer.poll(TracingConsumer.java:83)
>   at
> org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.doPoll(KafkaMessageListenerContainer.java:1109)
>   at
> org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.pollAndInvoke(KafkaMessageListenerContainer.java:1065)
>   at
> org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:990)
>   at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown
> Source)   at java.base/java.util.concurrent.FutureTask.run(Unknown
> Source)   at java.base/java.lang.Thread.run(Unknown Source)
> 
> 
> 2020-11-05 12:07:31,276 ERROR [consumer-5-C-1] []
> org.springframework.core.log.LogAccessor: Stopping container due to an
> Error java.lang.OutOfMemoryError: Direct buffer memory    at
> java.base/java.nio.Bits.reserveMemory(Unknown Source)     at
> java.base/java.nio.DirectByteBuffer.<init>(Unknown Source)    at
> java.base/java.nio.ByteBuffer.allocateDirect(Unknown Source)  at
> java.base/sun.nio.ch.Util.getTemporaryDirectBuffer(Unknown Source)    at
> java.base/sun.nio.ch.IOUtil.read(Unknown Source)  at
> java.base/sun.nio.ch.IOUtil.read(Unknown Source)  at
> java.base/sun.nio.ch.SocketChannelImpl.read(Unknown Source)   at
> org.apache.kafka.common.network.PlaintextTransportLayer.read(PlaintextTransportLayer.java:103)
>   at
> org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:118)
>   at
> org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:447)
>   at
> org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:397)
>   at
> org.apache.kafka.common.network.Selector.attemptRead(Selector.java:678)
>   at
> org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:580)
>   at org.apache.kafka.common.network.Selector.poll(Selector.java:485)
>   at
> org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:550)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:262)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:233)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:212)
>   at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:236)
>   at
> org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:469)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.updateAssignmentMetadataIfNeeded(KafkaConsumer.java:1274)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1238)
>   at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1173)
>   at brave.kafka.clients.TracingConsumer.poll(TracingConsumer.java:89)