Serhiy Boychenko created HADOOP-13322:
-----------------------------------------
Summary: Comment in Kerberos file is not properly parsed
Key: HADOOP-13322
URL: https://issues.apache.org/jira/browse/HADOOP-13322
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 2.6.0
Reporter: Serhiy Boychenko
Priority: Minor
Hello,
I am receiving an error when trying to authenticate with Kerberos:
Exception in thread "main" java.lang.IllegalArgumentException: Can't get
Kerberos realm
at
org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:65)
at
org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:263)
at
org.apache.hadoop.security.UserGroupInformation.setConfiguration(UserGroupInformation.java:299)
at
com.example.HadoopWorkloadParquetMain.main(HadoopWorkloadParquetMain.java:147)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at
org.apache.hadoop.security.authentication.util.KerberosUtil.getDefaultRealm(KerberosUtil.java:81)
at
org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:63)
... 3 more
Caused by: KrbException: Illegal config content:; comment
at sun.security.krb5.Config.parseStanzaTable(Config.java:609)
at sun.security.krb5.Config.<init>(Config.java:177)
at sun.security.krb5.Config.getInstance(Config.java:98)
... 9 more
The krb5.conf file, somewhere in the middle has a comment starting with
semicolumn (;) and it crashes the code. I have tried with the hash and it seems
to be working properly. The krb5.conf file has semicolumn-started comments in
the beginning and those are getting parsed correctly, what is breaking the code
in the semicolumn in the middle of the configuration. The file looks like:
; Some comment.
[libdefaults]
default_realm = EXAMPLE.COM
...
; comment
[realms]
EXAMPLE.ORG = {
...
}
I have been looking into the Web to understand if both characters can be used
as comments and it seems they can according to the following resource:
https://groups.google.com/forum/#!topic/comp.protocols.kerberos/i_Cl2d7TLGU
Thank you,
Serhiy.
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