Если я запускаю приложение blink для пряжи и число параллелизма больше 1 .
Ниже приведена команда:
./flink run -m yarn-cluster -ynm FLINK_NG_ENGINE_1 -ys 4 -yn 10 -ytm 5120 -p 40 -c XXMain ~/xx.jar
Ниже приведен код:
DataStream outputStream = tableEnv.toAppendStream(curTable, Row.class);
outputStream.print();
Вся подзадача приложения будет зависать длительное время, и, наконец, функция toAppendStream() будет выдавать исключение , как показано ниже:
org.apache.flink.client.program.ProgramInvocationException: Job failed. (JobID: f5e4f7243d06035202e8fa250c364304)
at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:276)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:482)
at org.apache.flink.streaming.api.environment.StreamContextEnvironment.executeInternal(StreamContextEnvironment.java:85)
at org.apache.flink.streaming.api.environment.StreamContextEnvironment.executeInternal(StreamContextEnvironment.java:37)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1893)
at com.ngengine.main.KafkaMergeMain.startApp(KafkaMergeMain.java:352)
at com.ngengine.main.KafkaMergeMain.main(KafkaMergeMain.java:94)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:561)
at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:445)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:419)
at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:786)
at org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:280)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:215)
at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1029)
at org.apache.flink.client.cli.CliFrontend.lambda$main$9(CliFrontend.java:1105)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1692)
at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1105)
Caused by: java.util.concurrent.TimeoutException
at org.apache.flink.runtime.concurrent.FutureUtils$Timeout.run(FutureUtils.java:834)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)