Github user denalex commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/1250#discussion_r120160818
--- Diff:
ranger-plugin/service/src/main/java/org/apache/hawq/ranger/authorization/RangerHawqPluginResource.java
---
@@ -45,8 +47,43 @@
/**
* Constructor. Creates a new instance of the resource that uses
<code>RangerHawqAuthorizer</code>.
*/
- public RangerHawqPluginResource() {
+ public RangerHawqPluginResource()
+ {
+ // set UserGroupInformation under kerberos authentication
+ if (Utils.getAuth().equals("kerberos"))
+ {
+ Configuration conf = new Configuration();
+ conf.set("hadoop.security.authentication", "kerberos");
+ UserGroupInformation.setConfiguration(conf);
+
+ String prin = Utils.getPrincipal();
+ String keytab = Utils.getKeytab();
+
+ if ( !prin.equals("") && !keytab.equals("") )
+ {
+ try
+ {
+ UserGroupInformation.loginUserFromKeytab(prin, keytab);
+ }
+ catch (Exception e)
+ {
+ LOG.warn(String.format("loginUserFromKeytab failed,
user[%s], keytab[%s]", prin, keytab));
+ }
+ }
+ }
+
+ try
+ {
+ UserGroupInformation user =
UserGroupInformation.getLoginUser();
+ LOG.info(String.format("login user: %s", user));
--- End diff --
this should be debug level, we do not want to log into log file every time
request is processed normally
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