Hi Root cause其实是最后一行 ”Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.hdfs.protocol.HdfsConstants“ 与rocksDB无关，检查一下运行时classpath里面有没有这个类，可以先确认一下flink-shaded-hadoop2-xx.jar 在不在你的classpath里面。
祝好 唐云 ________________________________ From: zhang yue <[email protected]> Sent: Friday, May 10, 2019 14:43 To: [email protected] Subject: Rocksdb作为状态后端启动时报错 flink 版本1.7.2 org.apache.flink.client.program.ProgramInvocationException: Job failed. (JobID: 447c14f1bd0382214a420122215f6792) at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:268) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:487) at org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:66) at feature.flinktask.ActionLog.main(ActionLog.java:188) 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:529) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:421) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:427) at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:813) at org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:287) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:213) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1050) at org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1126) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1692) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1126) Caused by: org.apache.flink.runtime.client.JobCancellationException: Job was cancelled. at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:148) at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:265) ... 20 more Caused by: AsynchronousException{java.lang.Exception: Could not materialize checkpoint 11 for operator Source: Custom Source (1/1).} at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointExceptionHandler.tryHandleCheckpointException(StreamTask.java:1153) at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.handleExecutionException(StreamTask.java:947) at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:884) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.Exception: Could not materialize checkpoint 11 for operator Source: Custom Source (1/1). at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.handleExecutionException(StreamTask.java:942) ... 6 more Caused by: java.util.concurrent.ExecutionException: java.io.IOException: Could not flush and close the file system output stream to hdfs://cdh-master2:8020/flink/checkpoints/447c14f1bd0382214a420122215f6792/chk-11/ca615aca-79a0-4af1-b0c1-954585c4c533 in order to obtain the stream state handle at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:53) at org.apache.flink.streaming.api.operators.OperatorSnapshotFinalizer.<init>(OperatorSnapshotFinalizer.java:53) at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:853) ... 5 more Caused by: java.io.IOException: Could not flush and close the file system output stream to hdfs://cdh-master2:8020/flink/checkpoints/447c14f1bd0382214a420122215f6792/chk-11/ca615aca-79a0-4af1-b0c1-954585c4c533 in order to obtain the stream state handle at org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory$FsCheckpointStateOutputStream.closeAndGetHandle(FsCheckpointStreamFactory.java:326) at org.apache.flink.runtime.state.DefaultOperatorStateBackend$DefaultOperatorStateBackendSnapshotStrategy$1.callInternal(DefaultOperatorStateBackend.java:767) at org.apache.flink.runtime.state.DefaultOperatorStateBackend$DefaultOperatorStateBackendSnapshotStrategy$1.callInternal(DefaultOperatorStateBackend.java:696) at org.apache.flink.runtime.state.AsyncSnapshotCallable.call(AsyncSnapshotCallable.java:76) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:50) ... 7 more Caused by: java.io.IOException: DataStreamer Exception: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:695) Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.hdfs.protocol.HdfsConstants at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1413) at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1357) at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:587)
