Hitesh Shah created TEZ-3536:
--------------------------------
Summary: Add debug logs to help debug NPE in WebUIService start
Key: TEZ-3536
URL: https://issues.apache.org/jira/browse/TEZ-3536
Project: Apache Tez
Issue Type: Bug
Reporter: Hitesh Shah
2016-10-25 03:15:22,200 [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)
2016-10-25 03:15:22,205 [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
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