unable to access Workflow Manager view on kerberized cluster due to Oozie test fail

[#1]

I'm running a kerberized HDP cluster and am unable to access the Workflow Manager view because the Oozie check is failing.

14325-oozie-check-failed-workflow-manager-view.png

Looking at the Workflow Manager view logs (/var/log/ambari-server/wfmanager-view/wfmanager-view.log), I can see that a null pointer exception is thrown after the oozie admin URL is attempted to be accessed:

02 Apr 2017 18:33:41,326  INFO [main] [  ] OozieProxyImpersonator:111 - OozieProxyImpersonator initialized for instance: WORKFLOW_MANAGER_VIEW
02 Apr 2017 18:35:13,927  INFO [ambari-client-thread-85] [WORKFLOW_MANAGER 1.0.0 WORKFLOW_MANAGER_VIEW] OozieDelegate:149 - Proxy request for url: [GET] http://hdp1.woolford.io:11000/oozie/v1/admin/configuration
02 Apr 2017 18:35:14,163 ERROR [ambari-client-thread-85] [WORKFLOW_MANAGER 1.0.0 WORKFLOW_MANAGER_VIEW] OozieProxyImpersonator:484 - Error in GET proxy
java.lang.RuntimeException: java.lang.NullPointerException

I'm able to access the Oozie web UI and the admin configuration URL (http://hdp1.woolford.io:11000/oozie/v1/admin/configuration) in a browser, and so it appears that Oozie is working, e.g.

14326-oozie-admin-configuration.png

I'm not sure if it's relevant to this issue, but the Oozie user can impersonate any user from any host (from core-site.xml):

<property>
  <name>hadoop.proxyuser.oozie.hosts</name>
  <value>*</value>
</property>
<property>
  <name>hadoop.proxyuser.oozie.groups</name>
  <value>*</value>
</property>

Can you see what I'm doing wrong? Is there any other relevant information I should add to this question?

[#2 · Accepted solution]

@Alex Woolford, Did you configure Kerberos for WFM? http://docs.hortonworks.com/HDPDocuments/Ambari-2.5.0.3/bk_ambari-views/content/wfm-kerberos-setup.h...

Also, ensure you completed other configuration requirements: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.0/bk_workflow-management/content/config_wfm_vi...

[#3]

Thanks so much, @Beverley Andalora. I somehow missed this in the docs. 🙂

Per the link you sent, I added the following properties to Oozie-site and it's working perfectly:

oozie.service.ProxyUserService.proxyuser.[ambari-server-cl1].groups=*

oozie.service.ProxyUserService.proxyuser.[ambari-server-cl1].hosts=*

[#4]

org.apache.ambari.view.commons.exceptions.ServiceFormattedException at org.apache.ambari.view.commons.hdfs.UserService.homeDir(UserService.java:7

User home directory not found...

Cluster is kerberized...please help