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https://issues.apache.org/jira/browse/HDFS-9276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14982267#comment-14982267
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Steve Loughran commented on HDFS-9276:
--------------------------------------
in the test, you don't need to catch that exception and convert to a
{{fail()}}. Remove the {{try}} block and JUnit will handle it direclty
> Failed to Update HDFS Delegation Token for long running application in HA mode
> ------------------------------------------------------------------------------
>
> Key: HDFS-9276
> URL: https://issues.apache.org/jira/browse/HDFS-9276
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fs, ha, security
> Affects Versions: 2.7.1
> Reporter: Liangliang Gu
> Assignee: Liangliang Gu
> Attachments: HDFS-9276.01.patch, HDFS-9276.02.patch,
> HDFS-9276.03.patch, HDFS-9276.04.patch, HDFS-9276.05.patch,
> HDFS-9276.06.patch, HDFS-9276.07.patch, HDFS-9276.08.patch,
> HDFS-9276.09.patch, debug1.PNG, debug2.PNG
>
>
> The Scenario is as follows:
> 1. NameNode HA is enabled.
> 2. Kerberos is enabled.
> 3. HDFS Delegation Token (not Keytab or TGT) is used to communicate with
> NameNode.
> 4. We want to update the HDFS Delegation Token for long running applicatons.
> HDFS Client will generate private tokens for each NameNode. When we update
> the HDFS Delegation Token, these private tokens will not be updated, which
> will cause token expired.
> This bug can be reproduced by the following program:
> {code}
> import java.security.PrivilegedExceptionAction
> import org.apache.hadoop.conf.Configuration
> import org.apache.hadoop.fs.{FileSystem, Path}
> import org.apache.hadoop.security.UserGroupInformation
> object HadoopKerberosTest {
> def main(args: Array[String]): Unit = {
> val keytab = "/path/to/keytab/xxx.keytab"
> val principal = "x...@abc.com"
> val creds1 = new org.apache.hadoop.security.Credentials()
> val ugi1 =
> UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab)
> ugi1.doAs(new PrivilegedExceptionAction[Void] {
> // Get a copy of the credentials
> override def run(): Void = {
> val fs = FileSystem.get(new Configuration())
> fs.addDelegationTokens("test", creds1)
> null
> }
> })
> val ugi = UserGroupInformation.createRemoteUser("test")
> ugi.addCredentials(creds1)
> ugi.doAs(new PrivilegedExceptionAction[Void] {
> // Get a copy of the credentials
> override def run(): Void = {
> var i = 0
> while (true) {
> val creds1 = new org.apache.hadoop.security.Credentials()
> val ugi1 =
> UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab)
> ugi1.doAs(new PrivilegedExceptionAction[Void] {
> // Get a copy of the credentials
> override def run(): Void = {
> val fs = FileSystem.get(new Configuration())
> fs.addDelegationTokens("test", creds1)
> null
> }
> })
> UserGroupInformation.getCurrentUser.addCredentials(creds1)
> val fs = FileSystem.get( new Configuration())
> i += 1
> println()
> println(i)
> println(fs.listFiles(new Path("/user"), false))
> Thread.sleep(60 * 1000)
> }
> null
> }
> })
> }
> }
> {code}
> To reproduce the bug, please set the following configuration to Name Node:
> {code}
> dfs.namenode.delegation.token.max-lifetime = 10min
> dfs.namenode.delegation.key.update-interval = 3min
> dfs.namenode.delegation.token.renew-interval = 3min
> {code}
> The bug will occure after 3 minutes.
> The stacktrace is:
> {code}
> Exception in thread "main"
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.token.SecretManager$InvalidToken):
> token (HDFS_DELEGATION_TOKEN token 330156 for test) is expired
> at org.apache.hadoop.ipc.Client.call(Client.java:1347)
> at org.apache.hadoop.ipc.Client.call(Client.java:1300)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
> at com.sun.proxy.$Proxy9.getFileInfo(Unknown Source)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:651)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy10.getFileInfo(Unknown Source)
> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1679)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1106)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1102)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1102)
> at org.apache.hadoop.fs.FileSystem.resolvePath(FileSystem.java:747)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$15.<init>(DistributedFileSystem.java:726)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listLocatedStatus(DistributedFileSystem.java:717)
> at
> org.apache.hadoop.fs.FileSystem.listLocatedStatus(FileSystem.java:1780)
> at org.apache.hadoop.fs.FileSystem$5.<init>(FileSystem.java:1842)
> at org.apache.hadoop.fs.FileSystem.listFiles(FileSystem.java:1839)
> at HadoopKerberosTest6$$anon$2.run(HadoopKerberosTest6.scala:55)
> at HadoopKerberosTest6$$anon$2.run(HadoopKerberosTest6.scala:32)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
> at HadoopKerberosTest6$.main(HadoopKerberosTest6.scala:32)
> at HadoopKerberosTest6.main(HadoopKerberosTest6.scala)
> 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:606)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
> {code}
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