Hi, We are trying to use StreamingFileSink to write to a S3 bucket. Its a simple job which reads from Kafka and sinks to S3. The credentials for s3 are configured in the flink cluster. We are using flink 1.7.2 without pre bundled hadoop. As suggested in the documentation we have added the flink-s3-fs-hadoop jar to the lib directory of the flink cluster. When we run the job, we are getting this particular auth exception. What are we doing wrong? Is there any configuration/jar that we are missing? There is no HADOOP_HOME etc set since we are using the shaded jar.
Looking forward to hearing from you. Best Wishes, Achyuth 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)
