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https://issues.apache.org/jira/browse/HADOOP-15414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16454323#comment-16454323
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He Xiaoqiao commented on HADOOP-15414:
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hi [~shahrs87],
On HDFS Federation, Job Client create ViewFileSystem instance, and it invoke
fs#addDelegationTokens to obtain delegation tokens, when {{fs}} is instance of
DistributedFileSystem, it collects delegation token for NameNode through
FileSystem#addDelegationTokens firstly, then request delegation token for KMS
if turn on HDFS Transparent Encryption, but if {{fs}} is instance of
ViewFileSystem, it does not implement {{addDelegationTokens}} so invoke
FileSystem#addDelegationTokens and it only collects delegation tokens for
NameNode, so when job submit to ResourceManager it also not contain delegation
token for KMS and Task is similar.
In my opinion, maybe we can solve it which replace {{collectDelegationTokens}}
with {{addDelegationTokens}} in FileSystem#collectDelegationTokens.
> Job submit not work well on HDFS Federation with Transparent Encryption
> feature
> -------------------------------------------------------------------------------
>
> Key: HADOOP-15414
> URL: https://issues.apache.org/jira/browse/HADOOP-15414
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: He Xiaoqiao
> Priority: Major
>
> When submit sample MapReduce job WordCount which read/write path under
> encryption zone on HDFS Federation in security mode to YARN, task throws
> exception as below:
> {code:java}
> 18/04/26 16:07:26 INFO mapreduce.Job: Task Id : attempt_JOBID_m_TASKID_0,
> Status : FAILED
> Error: java.io.IOException:
> org.apache.hadoop.security.authentication.client.AuthenticationException:
> GSSException: No valid credentials provided (Mechanism level: Failed to find
> any Kerberos tgt)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:489)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider.decryptEncryptedKey(KMSClientProvider.java:776)
> at
> org.apache.hadoop.crypto.key.KeyProviderCryptoExtension.decryptEncryptedKey(KeyProviderCryptoExtension.java:388)
> at
> org.apache.hadoop.hdfs.DFSClient.decryptEncryptedDataEncryptionKey(DFSClient.java:1468)
> at
> org.apache.hadoop.hdfs.DFSClient.createWrappedInputStream(DFSClient.java:1538)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:306)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:300)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:300)
> at org.apache.hadoop.fs.FilterFileSystem.open(FilterFileSystem.java:161)
> at
> org.apache.hadoop.fs.viewfs.ChRootedFileSystem.open(ChRootedFileSystem.java:258)
> at
> org.apache.hadoop.fs.viewfs.ViewFileSystem.open(ViewFileSystem.java:424)
> at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:793)
> at
> org.apache.hadoop.mapreduce.lib.input.LineRecordReader.initialize(LineRecordReader.java:85)
> at
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:552)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:823)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)
> 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:1690)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
> Caused by:
> org.apache.hadoop.security.authentication.client.AuthenticationException:
> GSSException: No valid credentials provided (Mechanism level: Failed to find
> any Kerberos tgt)
> at
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.doSpnegoSequence(KerberosAuthenticator.java:332)
> at
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.authenticate(KerberosAuthenticator.java:205)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.authenticate(DelegationTokenAuthenticator.java:128)
> at
> org.apache.hadoop.security.authentication.client.AuthenticatedURL.openConnection(AuthenticatedURL.java:215)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL.openConnection(DelegationTokenAuthenticatedURL.java:322)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:483)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:478)
> 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:1690)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:478)
> ... 21 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
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1.run(KerberosAuthenticator.java:311)
> at
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1.run(KerberosAuthenticator.java:287)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.doSpnegoSequence(KerberosAuthenticator.java:287)
> ... 31 more
> {code}
> The main reason is before submit job in security mode, we need to collect
> delegation tokens include delegation token for NameNode and KMS firstly. IF
> on HDFS Federation, all delegation tokens for NameNode can collection
> correctly BUT delegation token for KMS not collect reference
> {{FileSystem#addDelegationTokens}} -> {{FileSystem#collectDelegationTokens}},
> so when launch task it fails because KMS token not pass to through
> ResourceManager as exception shows {{GSSException: No valid credentials
> provided}}.
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