[Bug] The websocket server has already been created with port = 8080. Please set the option cdc.port = 8080.

[XiaoZhiSnow]

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Version

linux lotdb: 1.3.2

Describe the bug and provide the minimal reproduce step

1、使用flink cdc sql CREATE TABLE iotable_table3 ( `Timebigint, root.zhang.table3.idint, root.zhang.table3.namestring, root.zhang.table3.addressSTRING ) WITH ( 'connector' = 'IoTDB', 'nodeUrls'='ddp1:6667', 'mode'='cdc', 'cdc.task.name'='test1', 'cdc.pattern'='root.zhang.table3' ) 2、直接select * from iotable_table_3，此时没有数据。查看日志后发现，WebSocketConnectorServer启动失败，端口默认8080，被占用 3、切换端口： CREATE TABLE iotable_table_2 ( Time_bigint, root.zhang.table3.idint, root.zhang.table3.namestring, root.zhang.table3.address` STRING ) WITH ( 'connector' = 'IoTDB', 'nodeUrls'='ddp1:6667', 'mode'='cdc', 'cdc.task.name'='test2', 'cdc.pattern'='root.zhang.table3', 'cdc.port'='18089' ) 但是发现flink 任务日志报错 org.apache.iotdb.rpc.StatementExecutionException: 1107: The websocket server has already been created with port = 8080. Please set the option cdc.port = 8080. at org.apache.iotdb.rpc.RpcUtils.verifySuccess(RpcUtils.java:94) at org.apache.iotdb.session.SessionConnection.executeNonQueryStatement(SessionConnection.java:474) at org.apache.iotdb.session.Session.executeNonQueryStatement(Session.java:914) at org.apache.iotdb.flink.sql.function.IoTDBCDCSourceFunction.open(IoTDBCDCSourceFunction.java:134) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:34) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:101) at org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.initializeStateAndOpenOperators(RegularOperatorChain.java:107) at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreGates(StreamTask.java:734) at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.call(StreamTaskActionExecutor.java:100) at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreInternal(StreamTask.java:709) at org.apache.flink.streaming.runtime.tasks.StreamTask.restore(StreamTask.java:675) at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:952) at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:921) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:745) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562) at java.lang.Thread.run(Thread.java:750)

What did you expect to see?

能够切换端口，并且通过flink-sql查出来iotdb cdc的数据

What did you see instead?

这个方法有问题。

它会被这样调用：

new WebSocketConnectorServer成功后，直接启动了线程。但是线程内部运行报错，这个实例还在private static final AtomicReference instance，因此每次获取都是以前的旧实例。我切换端口也不会管用

Anything else?

No response

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

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[CritasWang]

@xuanronaldo