org.apache.kafka.common.errors.UnknownTopicOrPartitionException：此服务器未托管此主题分区

Question

我使用java将一个json object发送到kafka，最初它为我工作了2天，现在出现以下exception

Exception in thread "main" java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server does not host this topic-partition.
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.valueOrError(FutureRecordMetadata.java:65)
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get(FutureRecordMetadata.java:52)
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get(FutureRecordMetadata.java:25)
    at dummy.DummySyntheticManifestProducer.main(DummySyntheticManifestProducer.java:164)
 Caused by: org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server does not host this topic-partition.

Answer 1

在生产者设置中设置retries属性。 还需要将属性max.in.flight.requests.per.connection设置为1