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Posted to common-issues@hadoop.apache.org by "Issac Buenrostro (JIRA)" <ji...@apache.org> on 2019/03/27 16:15:00 UTC
[jira] [Created] (HADOOP-16214) Kerberos name implementation in
Hadoop does not accept principals with more than two components
Issac Buenrostro created HADOOP-16214:
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Summary: Kerberos name implementation in Hadoop does not accept principals with more than two components
Key: HADOOP-16214
URL: https://issues.apache.org/jira/browse/HADOOP-16214
Project: Hadoop Common
Issue Type: Bug
Components: auth
Reporter: Issac Buenrostro
org.apache.hadoop.security.authentication.util.KerberosName is in charge of converting a Kerberos principal to a user name in Hadoop for all of the services requiring authentication.
Although the Kerberos spec ([https://web.mit.edu/kerberos/krb5-1.5/krb5-1.5.4/doc/krb5-user/What-is-a-Kerberos-Principal_003f.html)] allows for an arbitrary number of components in the principal, the Hadoop implementation will throw a "Malformed Kerberos name:" error if the principal has more than two components (because the regex can only read serviceName and hostName).
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