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https://issues.apache.org/jira/browse/HBASE-9890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13816120#comment-13816120
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Francis Liu commented on HBASE-9890:
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V2 looks good. +1 on fixing mapred.*.
> MR jobs are not working if started by a delegated user
> ------------------------------------------------------
>
> Key: HBASE-9890
> URL: https://issues.apache.org/jira/browse/HBASE-9890
> Project: HBase
> Issue Type: Bug
> Components: mapreduce, security
> Affects Versions: 0.98.0, 0.94.12, 0.96.0
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Fix For: 0.98.0, 0.94.13, 0.96.1
>
> Attachments: HBASE-9890-94-v0.patch, HBASE-9890-94-v1.patch,
> HBASE-9890-v0.patch, HBASE-9890-v1.patch, HBASE-9890-v2.patch
>
>
> If Map-Reduce jobs are started with by a proxy user that has already the
> delegation tokens, we get an exception on "obtain token" since the proxy user
> doesn't have the kerberos auth.
> For example:
> * If we use oozie to execute RowCounter - oozie will get the tokens required
> (HBASE_AUTH_TOKEN) and it will start the RowCounter. Once the RowCounter
> tries to obtain the token, it will get an exception.
> * If we use oozie to execute LoadIncrementalHFiles - oozie will get the
> tokens required (HDFS_DELEGATION_TOKEN) and it will start the
> LoadIncrementalHFiles. Once the LoadIncrementalHFiles tries to obtain the
> token, it will get an exception.
> {code}
> org.apache.hadoop.hbase.security.AccessDeniedException: Token generation
> only allowed for Kerberos authenticated clients
> at
> org.apache.hadoop.hbase.security.token.TokenProvider.getAuthenticationToken(TokenProvider.java:87)
> {code}
> {code}
> org.apache.hadoop.ipc.RemoteException(java.io.IOException): Delegation Token
> can be issued only with kerberos or web authentication
> at
> org.apache.hadoop.hdfs.DFSClient.getDelegationToken(DFSClient.java:783)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getDelegationToken(DistributedFileSystem.java:868)
> at
> org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:509)
> at
> org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:487)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:130)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:111)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:85)
> at
> org.apache.hadoop.filecache.TrackerDistributedCacheManager.getDelegationTokens(TrackerDistributedCacheManager.java:949)
> at
> org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:854)
> at
> org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:743)
> at
> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:945)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:566)
> at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:596)
> at
> org.apache.hadoop.hbase.mapreduce.RowCounter.main(RowCounter.java:173)
> {code}
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