[ https://issues.apache.org/jira/browse/GIRAPH-583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gianmarco De Francisci Morales updated GIRAPH-583: -------------------------------------------------- Description: Hi, I am trying to run the RWR code on trunk and Hadoop 0.23 with Kerberos authentication, but I get this exception: {code} 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 WARN ipc.Client: Exception encountered while connecting to the server : javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; Exception in thread "main" java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:738) at org.apache.hadoop.ipc.Client.call(Client.java:1092) at org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:195) at $Proxy6.getDelegationToken(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:102) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:67) at $Proxy6.getDelegationToken(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.getDelegationToken(DFSClient.java:603) at org.apache.hadoop.hdfs.DistributedFileSystem.getDelegationToken(DistributedFileSystem.java:786) at org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:466) at org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:444) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:122) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:101) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:81) at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137) at org.apache.giraph.io.formats.TextVertexOutputFormat.checkOutputSpecs(TextVertexOutputFormat.java:55) at org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:50) at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:417) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:332) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1218) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1215) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1215) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1236) at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:237) at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:81) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83) at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:111) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.util.RunJar.main(RunJar.java:208) Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:534) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:498) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:582) at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:205) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1198) at org.apache.hadoop.ipc.Client.call(Client.java:1068) ... 38 more Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:212) at org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:137) at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:406) at org.apache.hadoop.ipc.Client$Connection.access$1200(Client.java:205) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:575) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:572) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:571) ... 41 more Caused by: GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt) at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:147) at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:121) at sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:187) at sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:223) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:212) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:179) at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:193) ... 50 more {code} For reference, I am using -Dgiraph.useNetty="true" -Dgiraph.authenticate="true" was: Hi, I am trying to run the RWR code on trunk and Hadoop 0.23 with Kerberos authentication, but I get this exception: [code] 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 WARN ipc.Client: Exception encountered while connecting to the server : javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/03/23 17:32:36 ERROR security.UserGroupInformation: PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; Exception in thread "main" java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:738) at org.apache.hadoop.ipc.Client.call(Client.java:1092) at org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:195) at $Proxy6.getDelegationToken(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:102) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:67) at $Proxy6.getDelegationToken(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.getDelegationToken(DFSClient.java:603) at org.apache.hadoop.hdfs.DistributedFileSystem.getDelegationToken(DistributedFileSystem.java:786) at org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:466) at org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:444) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:122) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:101) at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:81) at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137) at org.apache.giraph.io.formats.TextVertexOutputFormat.checkOutputSpecs(TextVertexOutputFormat.java:55) at org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:50) at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:417) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:332) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1218) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1215) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1215) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1236) at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:237) at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:81) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83) at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:111) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.util.RunJar.main(RunJar.java:208) Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:534) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:498) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:582) at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:205) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1198) at org.apache.hadoop.ipc.Client.call(Client.java:1068) ... 38 more Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:212) at org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:137) at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:406) at org.apache.hadoop.ipc.Client$Connection.access$1200(Client.java:205) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:575) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:572) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:571) ... 41 more Caused by: GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt) at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:147) at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:121) at sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:187) at sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:223) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:212) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:179) at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:193) ... 50 more [code] For reference, I am using -Dgiraph.useNetty="true" -Dgiraph.authenticate="true" > Problem with authehtication on Hadoop 0.23 > ------------------------------------------ > > Key: GIRAPH-583 > URL: https://issues.apache.org/jira/browse/GIRAPH-583 > Project: Giraph > Issue Type: Bug > Reporter: Gianmarco De Francisci Morales > > Hi, > I am trying to run the RWR code on trunk and Hadoop 0.23 with Kerberos > authentication, but I get this exception: > {code} > 13/03/23 17:32:36 ERROR security.UserGroupInformation: > PriviledgedActionException as:gdfm (auth:KERBEROS) > cause:javax.security.sasl.SaslException: GSS initiate failed [Caused by > GSSException: No valid credentials provided (Mechanism level: Failed to find > any Kerberos tgt)] > 13/03/23 17:32:36 WARN ipc.Client: Exception encountered while connecting to > the server : javax.security.sasl.SaslException: GSS initiate failed [Caused > by GSSException: No valid credentials provided (Mechanism level: Failed to > find any Kerberos tgt)] > 13/03/23 17:32:36 ERROR security.UserGroupInformation: > PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: > javax.security.sasl.SaslException: GSS initiate failed [Caused by > GSSException: No valid credentials provided (Mechanism level: Failed to find > any Kerberos tgt)] > 13/03/23 17:32:36 ERROR security.UserGroupInformation: > PriviledgedActionException as:gdfm (auth:KERBEROS) cause:java.io.IOException: > Failed on local exception: java.io.IOException: > javax.security.sasl.SaslException: GSS initiate failed [Caused by > GSSException: No valid credentials provided (Mechanism level: Failed to find > any Kerberos tgt)]; Host Details : local host is: > "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: > ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; > Exception in thread "main" java.io.IOException: Failed on local exception: > java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed > [Caused by GSSException: No valid credentials provided (Mechanism level: > Failed to find any Kerberos tgt)]; Host Details : local host is: > "gwta3005.tan.ygrid.yahoo.com/98.138.127.244"; destination host is: > ""tiberiumtan-nn1.tan.ygrid.yahoo.com":8020; > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:738) > at org.apache.hadoop.ipc.Client.call(Client.java:1092) > at > org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:195) > at $Proxy6.getDelegationToken(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:102) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:67) > at $Proxy6.getDelegationToken(Unknown Source) > at > org.apache.hadoop.hdfs.DFSClient.getDelegationToken(DFSClient.java:603) > at > org.apache.hadoop.hdfs.DistributedFileSystem.getDelegationToken(DistributedFileSystem.java:786) > at > org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:466) > at > org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:444) > at > org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:122) > at > org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:101) > at > org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:81) > at > org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137) > at > org.apache.giraph.io.formats.TextVertexOutputFormat.checkOutputSpecs(TextVertexOutputFormat.java:55) > at > org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:50) > at > org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:417) > at > org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:332) > at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1218) > at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1215) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1215) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1236) > at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:237) > at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:81) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83) > at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:111) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:208) > Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS > initiate failed [Caused by GSSException: No valid credentials provided > (Mechanism level: Failed to find any Kerberos tgt)] > at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:534) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) > at > org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:498) > at > org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:582) > at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:205) > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1198) > at org.apache.hadoop.ipc.Client.call(Client.java:1068) > ... 38 more > Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by > GSSException: No valid credentials provided (Mechanism level: Failed to find > any Kerberos tgt)] > at > com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:212) > at > org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:137) > at > org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:406) > at org.apache.hadoop.ipc.Client$Connection.access$1200(Client.java:205) > at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:575) > at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:572) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1221) > at > org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:571) > ... 41 more > Caused by: GSSException: No valid credentials provided (Mechanism level: > Failed to find any Kerberos tgt) > at > sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:147) > at > sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:121) > at > sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:187) > at > sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:223) > at > sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:212) > at > sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:179) > at > com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:193) > ... 50 more > {code} > For reference, I am using -Dgiraph.useNetty="true" > -Dgiraph.authenticate="true" -- This message is automatically generated by JIRA. 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