我们正在尝试使用streamingfilesink来写入s3存储桶。这是一个简单的工作，读Kafka和下沉到s3。s3的凭据在flink集群中配置。我们使用的是Flink1.7.2，没有预先绑定hadoop。正如文档中所建议的，我们已经将flink-s3-fs-hadoop jar添加到flink集群的lib目录中。当我们运行作业时，我们得到了这个特殊的kerberos异常。我们做错什么了？是否缺少任何配置/jar？

org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.KerberosAuthException: failure to login: javax.security.auth.login.LoginException: java.lang.NullPointerException: invalid null input: name
at com.sun.security.auth.UnixPrincipal.<init>(UnixPrincipal.java:71)
at com.sun.security.auth.module.UnixLoginModule.login(UnixLoginModule.java:133)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755)
at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
at javax.security.auth.login.LoginContext.login(LoginContext.java:587)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation$HadoopLoginContext.login(UserGroupInformation.java:1877)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.doSubjectLogin(UserGroupInformation.java:1789)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.createLoginUser(UserGroupInformation.java:704)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:654)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:565)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:247)
at org.apache.flink.fs.s3.common.AbstractS3FileSystemFactory.create(AbstractS3FileSystemFactory.java:125)
at org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:395)
at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:318)
at org.apache.flink.streaming.api.functions.sink.filesystem.Buckets.<init>(Buckets.java:112)
at org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink$BulkFormatBuilder.createBuckets(StreamingFileSink.java:317)
at org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink.initializeState(StreamingFileSink.java:327)
at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178)
at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:278)
at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:738)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:289)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704)
at java.lang.Thread.run(Thread.java:748)

at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.doSubjectLogin(UserGroupInformation.java:1799)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.createLoginUser(UserGroupInformation.java:704)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:654)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:565)
at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:247)
at org.apache.flink.fs.s3.common.AbstractS3FileSystemFactory.create(AbstractS3FileSystemFactory.java:125)
at org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:395)
at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:318)
at org.apache.flink.streaming.api.functions.sink.filesystem.Buckets.<init>(Buckets.java:112)
at org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink$BulkFormatBuilder.createBuckets(StreamingFileSink.java:317)
at org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink.initializeState(StreamingFileSink.java:327)
at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178)
at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:278)
at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:738)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:289)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704)
at java.lang.Thread.run(Thread.java:748)

它是一个scala应用程序，添加了以下依赖项：编译范围：flink jars是1.7.2 flink java flink streaming java flink streaming scala flink连接器kafka flink parquet flink avro parquet avro->1.10.0
提供范围：flink-shaded-hadoop2