风一般的男人

bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test

[2019-10-10 17:02:09,513] ERROR Uncaught exception in thread 'kafka-producer-network-thread | console-producer': (org.apache.kafka.common.utils.KafkaThread)
java.lang.OutOfMemoryError: Java heap space
at java.nio.HeapByteBuffer.(HeapByteBuffer.java:57)
at java.nio.ByteBuffer.allocate(ByteBuffer.java:335)
at org.apache.kafka.common.memory.MemoryPool$1.tryAllocate(MemoryPool.java:30)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:112)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:424)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:385)
at org.apache.kafka.common.network.Selector.attemptRead(Selector.java:651)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:572)
at org.apache.kafka.common.network.Selector.poll(Selector.java:483)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:539)
at org.apache.kafka.clients.producer.internals.Sender.runOnce(Sender.java:331)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:238)
at java.lang.Thread.run(Thread.java:748)

一直报这个错，是什么原因？
已经执行了export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"还是一样。