Tez UI WebService failed to start

[#1]

Dear Cloudera community

I'm struggling to get Hive jobs to run on Tez on our kerberized cluster with HA RM. 
We're getting the following error, does anyone have any idea what the problem is?

Kind regards

Michael

2021-07-19 16:51:41,744 [INFO] [ServiceThread:org.apache.tez.dag.app.web.WebUIService] |http.HttpServer2|: Added global filter 'safety' (class=org.apache.hadoop.http.HttpServer2$QuotingInputFilter)

2021-07-19 16:51:41,787 [ERROR] [ServiceThread:org.apache.tez.dag.app.web.WebUIService] |web.WebUIService|: Tez UI WebService failed to start.

java.lang.NullPointerException

        at org.apache.hadoop.util.StringUtils.join(StringUtils.java:941)

        at org.apache.hadoop.yarn.server.webproxy.amfilter.AmFilterInitializer.initFilter(AmFilterInitializer.java:74)

        at org.apache.hadoop.http.HttpServer2.initializeWebServer(HttpServer2.java:587)

        at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:537)

        at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:117)

        at org.apache.hadoop.http.HttpServer2$Builder.build(HttpServer2.java:421)

        at org.apache.hadoop.yarn.webapp.WebApps$Builder.build(WebApps.java:340)

       at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:427)

        at org.apache.tez.dag.app.web.WebUIService.serviceStart(WebUIService.java:94)

        at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)

        at org.apache.tez.dag.app.DAGAppMaster$ServiceWithDependency.start(DAGAppMaster.java:1865)

        at org.apache.tez.dag.app.DAGAppMaster$ServiceThread.run(DAGAppMaster.java:1886)

[#2]

Hi @michael_boulter 

Could you let us know what is HDP version you are using? There is no TEZ UI from HDP 3 and in CDP.

Could you check whether the Hive is running in port 10000/10001?

Could you cross-check you were able to log in to beeline and run random queries?

[#3]

add this to u yarn-site.xml good luck

<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>hadoop47:8088</value>
</property>

<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>hadoop48:8088</value>
</property>