[KYLIN-3214] Initialize ExternalAclProvider when starting kylin

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: v2.2.0
• Fix Version/s: v2.3.0
• Component/s: Security
• Assignee: peng.jianhua
• Reporter: peng.jianhua
• Created: 30/Jan/18 08:56
• Updated: 02/Apr/18 13:42
• Resolved: 07/Feb/18 06:42

Description

Currently, ExternalAclProvider is initialized only when calling acl related api.
Manage ACL through Ranger，ranger can not get the status of the ExternalAclProvider in time because of ExternalAclProvider not initialized when starting kylin.