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https://issues.apache.org/jira/browse/RANGER-1353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Qiang Zhang updated RANGER-1353:
--------------------------------
Component/s: (was: kms)
> NameRules should be set to the default value in Kerberized Environment
> ----------------------------------------------------------------------
>
> Key: RANGER-1353
> URL: https://issues.apache.org/jira/browse/RANGER-1353
> Project: Ranger
> Issue Type: Bug
> Components: Ranger
> Reporter: Qiang Zhang
> Assignee: Qiang Zhang
> Labels: patch
> Attachments: 0001-RANGER-1353.patch
>
>
> when the value of NameRules is not configured in Kerberized Environment,
> I start ranger-admin,it will cause java.lang.NullPointerException
> the error message is as follows:
> {code}
> java.lang.NullPointerException
> at
> org.apache.hadoop.security.authentication.util.KerberosName.getShortName(KerberosName.java:383)
> at org.apache.hadoop.security.User.<init>(User.java:48)
> at
> org.apache.hadoop.security.SecureClientLogin.loginUserFromKeytab(SecureClientLogin.java:65)
> at
> org.apache.ranger.server.tomcat.EmbeddedServer.start(EmbeddedServer.java:232)
> at
> org.apache.ranger.server.tomcat.EmbeddedServer.main(EmbeddedServer.java:72)
> {code}
>
> so we should add the default value in Java method EmbeddedServer.start():
> {code}
> String nameRules = getConfig(ADMIN_NAME_RULES);
> if (getConfig(AUTHENTICATION_TYPE) != null
> &&
> getConfig(AUTHENTICATION_TYPE).trim().equalsIgnoreCase(AUTH_TYPE_KERBEROS)
> && SecureClientLogin.isKerberosCredentialExists(principal,keytab)) {
> ...
> }
> {code}
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