Spongebob created FLINK-22247:
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Summary: can not pass AddressList when connecting to rabbitmq
Key: FLINK-22247
URL:
https://issues.apache.org/jira/browse/FLINK-22247 Project: Flink
Issue Type: Improvement
Components: API / DataStream
Affects Versions: 1.12.2
Environment: flink: 2.12.2
rabbitmq: 3.8.4
Reporter: Spongebob
We hope to connect to rabbitmq cluster address when using rabbitmq connector, So we override the setupConnection function to pass the rabbitmq cluster address, but the address class is not serializable thereby flink throws exception.
{code:java}
//代码占位符
val rabbitmqAddresses = Array(
new Address("xxx1", 5672),
new Address("xxx2", 5672),
new Address("xxx3", 5672))
val dataStream = streamEnv
.addSource(new RMQSource[String](
rabbitmqConfig, // rabbitmq's connection config
"queueName", // queue name
true, // using correlation ids, assurance of exactly-once consume from rabbitmq
new SimpleStringSchema // java deserialization
) {
override def setupQueue(): Unit = {}
override def setupConnection(): Connection = {
rabbitmqConfig.getConnectionFactory.newConnection(rabbitmqAddresses)
}
}).setParallelism(1)
{code}
Exception in thread "main" org.apache.flink.api.common.InvalidProgramException: [Lcom.rabbitmq.client.Address;@436a4e4b is not serializable. The object probably contains or references non serializable fields.Exception in thread "main" org.apache.flink.api.common.InvalidProgramException: [Lcom.rabbitmq.client.Address;@436a4e4b is not serializable. The object probably contains or references non serializable fields. at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:164) at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132) at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:69) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.clean(StreamExecutionEnvironment.java:2000) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1685) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1668) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1652) at org.apache.flink.streaming.api.scala.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.scala:693) at testConsumer$.main(testConsumer.scala:30) at testConsumer.main(testConsumer.scala)Caused by: java.io.NotSerializableException: com.rabbitmq.client.Address at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) at org.apache.flink.util.InstantiationUtil.serializeObject(InstantiationUtil.java:624) at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:143) ... 9 more
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