[jira] [Commented] (HDFS-2854) SecurityUtil.buildTokenService returns java.net.UnknownHostException when using paths like viewfs://default/some/path

[Arpit Gupta (Commented) (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HDFS-2854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13195353#comment-13195353
 ] 

Arpit Gupta commented on HDFS-2854:
-----------------------------------

here the stack trace
{code}
java.lang.IllegalArgumentException: java.net.UnknownHostException: default
        at 
org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:428)
        at 
org.apache.hadoop.security.SecurityUtil.buildDTServiceName(SecurityUtil.java:311)
        at 
org.apache.hadoop.fs.FileSystem.getCanonicalServiceName(FileSystem.java:217)
        at 
org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:109)
        at 
org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:87)
        at 
org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:80)
        at 
org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137)
        at 
org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:405)
        at 
org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:326)
        at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1221)
        at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1218)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1177)
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1218)
        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1239)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:84)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at 
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:144)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:68)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:200)
Caused by: java.net.UnknownHostException: default
        ... 29 more
{code}

I had viewfs configured to have a default mount table and using 
viewfs://default/paths
                
> SecurityUtil.buildTokenService returns java.net.UnknownHostException when 
> using paths like viewfs://default/some/path
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-2854
>                 URL: https://issues.apache.org/jira/browse/HDFS-2854
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.24.0, 0.23.1
>            Reporter: Arpit Gupta
>


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