[HADOOP-13638] KMS should set UGI's Configuration object properly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: kms
• Hadoop Flags: Reviewed
• Assignee: Wei-Chiu Chuang
• Reporter: Wei-Chiu Chuang
• Created: 21/Sep/16 21:04
• Updated: 02/Oct/19 17:15
• Resolved: 26/Sep/16 20:12

Description

We found that the Configuration object in UGI in KMS server is not initialized properly, therefore it does not load core-site.xml from KMSConfiguration.KMS_CONFIG_DIR.

This becomes a problem when the Hadoop cluster uses LdapGroupsMapping for group resolution, because the UGI in KMS falls back to the default JniBasedUnixGroupsMappingWithFallback (defined in core-default.xml) and is thus not consistent with the Hadoop cluster.