question Re: org.apache.hadoop.security.authorize.AuthorizationException: User: root is not allowed to impersonate admin - Submit Workflow from Ambari Workflow Manager in Archives of Support Questions (Read Only)

org.apache.hadoop.security.authorize.AuthorizationException: User: root is not allowed to impersonate admin - Submit Workflow from Ambari Workflow Manager

jeanette75007 — Thu, 06 Jul 2017 04:29:31 GMT

Hello all,

I am getting below error when I tried to submit Workflow from Workflow Manager View in Ambari.

at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.hadoop.security.authorize.AuthorizationException: User: root is not allowed to impersonate admin

I also added to core-site properties:

hadoop.proxyuser.root.groups="users"
hadoop.proxyuser.root.hosts=ambari-server.hostname

I have Ambari runs as root but I login to Ambari as admin. Could you please help me how to avoid the AuthorizationException.

Many Thanks

JT Ng

Re: org.apache.hadoop.security.authorize.AuthorizationException: User: root is not allowed to impersonate admin - Submit Workflow from Ambari Workflow Manager

KuldeepK — Thu, 06 Jul 2017 06:44:40 GMT

@JT Ng

Please modify these properties as below in core-site.xml via Ambari --> Restart required services --> It should fix your issue.

hadoop.proxyuser.root.groups=*
hadoop.proxyuser.root.hosts=*

Please do let me know if you have any questions.

Re: org.apache.hadoop.security.authorize.AuthorizationException: User: root is not allowed to impersonate admin - Submit Workflow from Ambari Workflow Manager

jeanette75007 — Thu, 06 Jul 2017 20:54:36 GMT

Thanks Kuldeep. Its working now