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https://issues.apache.org/jira/browse/HDFS-6776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14108194#comment-14108194
]
Yongjun Zhang commented on HDFS-6776:
-------------------------------------
HI [~wheat9],
Thanks for the more info. What about I add a config similar like the RPC one
you mentioned
{code}
{
this.fallbackAllowed =
conf.getBoolean(CommonConfigurationKeys.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_KEY,
CommonConfigurationKeys.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_DEFAULT);
{code}
and take NullToken exception as insecure only when the fallback is allowed?
We can make the new property WEB_CLIENT_FALLACK_TO_SIMPLE_AUTH_ALLOWED_KEY.
Now with this config introduced, and since we dedicate NullToken exception to
be thrown when insecure cluster is asked for delegation token, there is not
much functionality difference between NullToken or dummy token.
Agree?
Thanks.
> distcp from insecure cluster (source) to secure cluster (destination) doesn't
> work
> ----------------------------------------------------------------------------------
>
> Key: HDFS-6776
> URL: https://issues.apache.org/jira/browse/HDFS-6776
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.3.0, 2.5.0
> Reporter: Yongjun Zhang
> Assignee: Yongjun Zhang
> Attachments: HDFS-6776.001.patch, HDFS-6776.002.patch,
> HDFS-6776.003.patch, HDFS-6776.004.patch, HDFS-6776.004.patch,
> HDFS-6776.005.patch, HDFS-6776.006.NullToken.patch,
> HDFS-6776.006.NullToken.patch, HDFS-6776.007.patch, HDFS-6776.008.patch
>
>
> Issuing distcp command at the secure cluster side, trying to copy stuff from
> insecure cluster to secure cluster, and see the following problem:
> {code}
> hadoopuser@yjc5u-1 ~]$ hadoop distcp webhdfs://<insure-cluster>:<port>/tmp
> hdfs://<sure-cluster>:8020/tmp/tmptgt
> 14/07/30 20:06:19 INFO tools.DistCp: Input Options:
> DistCpOptions{atomicCommit=false, syncFolder=false, deleteMissing=false,
> ignoreFailures=false, maxMaps=20, sslConfigurationFile='null',
> copyStrategy='uniformsize', sourceFileListing=null,
> sourcePaths=[webhdfs://<insecure-cluster>:<port>/tmp],
> targetPath=hdfs://<secure-cluster>:8020/tmp/tmptgt, targetPathExists=true}
> 14/07/30 20:06:19 INFO client.RMProxy: Connecting to ResourceManager at
> <secure-clister>:8032
> 14/07/30 20:06:20 WARN ssl.FileBasedKeyStoresFactory: The property
> 'ssl.client.truststore.location' has not been set, no TrustStore will be
> loaded
> 14/07/30 20:06:20 WARN security.UserGroupInformation:
> PriviledgedActionException as:hadoopu...@xyz.com (auth:KERBEROS)
> cause:java.io.IOException: Failed to get the token for hadoopuser,
> user=hadoopuser
> 14/07/30 20:06:20 WARN security.UserGroupInformation:
> PriviledgedActionException as:hadoopu...@xyz.com (auth:KERBEROS)
> cause:java.io.IOException: Failed to get the token for hadoopuser,
> user=hadoopuser
> 14/07/30 20:06:20 ERROR tools.DistCp: Exception encountered
> java.io.IOException: Failed to get the token for hadoopuser, user=hadoopuser
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at
> org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
> at
> org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.toIOException(WebHdfsFileSystem.java:365)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.access$600(WebHdfsFileSystem.java:84)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.shouldRetry(WebHdfsFileSystem.java:618)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.runWithRetry(WebHdfsFileSystem.java:584)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.access$100(WebHdfsFileSystem.java:438)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner$1.run(WebHdfsFileSystem.java:466)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:462)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getDelegationToken(WebHdfsFileSystem.java:1132)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getDelegationToken(WebHdfsFileSystem.java:218)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getAuthParameters(WebHdfsFileSystem.java:403)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.toUrl(WebHdfsFileSystem.java:424)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractFsPathRunner.getUrl(WebHdfsFileSystem.java:640)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.runWithRetry(WebHdfsFileSystem.java:565)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.access$100(WebHdfsFileSystem.java:438)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner$1.run(WebHdfsFileSystem.java:466)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:462)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getHdfsFileStatus(WebHdfsFileSystem.java:781)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getFileStatus(WebHdfsFileSystem.java:796)
> at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:57)
> at org.apache.hadoop.fs.Globber.glob(Globber.java:248)
> at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1623)
> at
> org.apache.hadoop.tools.GlobbedCopyListing.doBuildListing(GlobbedCopyListing.java:77)
> at org.apache.hadoop.tools.CopyListing.buildListing(CopyListing.java:81)
> at
> org.apache.hadoop.tools.DistCp.createInputFileListing(DistCp.java:342)
> at org.apache.hadoop.tools.DistCp.execute(DistCp.java:154)
> at org.apache.hadoop.tools.DistCp.run(DistCp.java:121)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.tools.DistCp.main(DistCp.java:390)
> Caused by: org.apache.hadoop.ipc.RemoteException(java.io.IOException): Failed
> to get the token for hadoopuser, user=hadoopuser
> at
> org.apache.hadoop.hdfs.web.JsonUtil.toRemoteException(JsonUtil.java:159)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.validateResponse(WebHdfsFileSystem.java:334)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.access$200(WebHdfsFileSystem.java:84)
> at
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.runWithRetry(WebHdfsFileSystem.java:570)
> ... 30 more
> [hadoopuser@yjc5u-1 ~]$
> {code}
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