WangJ1an opened a new pull request #75: fix bug "the client has already been closed" URL: https://github.com/apache/bahir-flink/pull/75 Fix the problem "Caused by: java.lang.IllegalStateException: Cannot proceed, the client has already been closed" when I run in flink local mode. ``` Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: Job execution failed. at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146) at org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:626) at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:117) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1507) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1489) at org.apache.flink.streaming.api.scala.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.scala:645) at com.wj.Temp$.main(Temp.scala:28) at com.wj.Temp.main(Temp.scala) Caused by: java.lang.Exception: java.lang.IllegalStateException: Cannot proceed, the client has already been closed at org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.checkThrowSourceExecutionException(SourceStreamTask.java:217) at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.processInput(SourceStreamTask.java:133) at org.apache.flink.streaming.runtime.tasks.StreamTask.run(StreamTask.java:301) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:406) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.IllegalStateException: Cannot proceed, the client has already been closed at org.apache.kudu.client.AsyncKuduClient.checkIsClosed(AsyncKuduClient.java:2520) at org.apache.kudu.client.AsyncKuduClient.openTableById(AsyncKuduClient.java:840) at org.apache.kudu.client.KuduClient.openTableById(KuduClient.java:240) at org.apache.kudu.client.KuduScanToken.pbIntoScanner(KuduScanToken.java:193) at org.apache.kudu.client.KuduScanToken.deserializeIntoScanner(KuduScanToken.java:118) at org.apache.flink.connectors.kudu.connector.reader.KuduReader.scanner(KuduReader.java:82) at org.apache.flink.connectors.kudu.batch.KuduInputFormat.open(KuduInputFormat.java:81) at org.apache.flink.connectors.kudu.batch.KuduInputFormat.open(KuduInputFormat.java:42) at org.apache.flink.streaming.api.functions.source.InputFormatSourceFunction.run(InputFormatSourceFunction.java:85) at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100) at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63) at org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:203) ``` After closing kuduReader, set it to null to avoid reusing kuduReader in local mode to get the closed kuduClient
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