[TEZ-3536] NPE in WebUIService start when host resolution fails.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.7.2, 0.9.0, 0.8.5
• Assignee: Hitesh Shah
• Reporter: Hitesh Shah
• Created: 10/Nov/16 19:36
• Updated: 14/Mar/17 03:50
• Resolved: 14/Nov/16 21:33

Description

 [ERROR] [ServiceThread:org.apache.tez.dag.app.web.WebUIService] |web.WebUIService|: Tez UI WebService failed to start.
java.lang.NullPointerException
	at org.apache.tez.dag.app.web.WebUIService.serviceStart(WebUIService.java:98)
	at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
	at org.apache.tez.dag.app.DAGAppMaster$ServiceWithDependency.start(DAGAppMaster.java:1657)
	at org.apache.tez.dag.app.DAGAppMaster$ServiceThread.run(DAGAppMaster.java:1678)
 [INFO] [ServiceThread:org.apache.tez.dag.app.web.WebUIService] |service.AbstractService|: Service org.apache.tez.dag.app.web.WebUIService failed in state STARTED; cause: org.apache.tez.dag.api.TezUncheckedException: java.lang.NullPointerException
org.apache.tez.dag.api.TezUncheckedException: java.lang.NullPointerException
	at org.apache.tez.dag.app.web.WebUIService.serviceStart(WebUIService.java:103)
	at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
	at org.apache.tez.dag.app.DAGAppMaster$ServiceWithDependency.start(DAGAppMaster.java:1657)
	at org.apache.tez.dag.app.DAGAppMaster$ServiceThread.run(DAGAppMaster.java:1678)
Caused by: java.lang.NullPointerException
	at org.apache.tez.dag.app.web.WebUIService.serviceStart(WebUIService.java:98)
	... 3 more