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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4880) Running TestZKRMStateStorePerf with real zookeeper cluster throws NPE
Date Sat, 26 Mar 2016 07:45:25 GMT
Rohith Sharma K S created YARN-4880:
---------------------------------------

             Summary: Running TestZKRMStateStorePerf with real zookeeper cluster throws NPE
                 Key: YARN-4880
                 URL: https://issues.apache.org/jira/browse/YARN-4880
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Rohith Sharma K S


While going throw TestZKRMStateStorePerf class , found that we are not initializing variable
{{TestingServer curatorTestingServer}} if real zookeeper cluster are passed to utility.  But
down the line , this variables are used which causes NPE

I tested by passing program arguments which result in NPE
{noformat} 
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Users/r00902292/.m2/repository/org/slf4j/slf4j-log4j12/1.7.10/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/r00902292/.m2/repository/ch/qos/logback/logback-classic/1.1.2/logback-classic-1.1.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2016-03-26 14:47:50,937 INFO  [main] recovery.TestZKRMStateStore (TestZKRMStateStorePerf.java:run(119))
- Starting ZKRMStateStorePerf ver.0.1
java.lang.NullPointerException
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStorePerf.initStore(TestZKRMStateStorePerf.java:102)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStorePerf.run(TestZKRMStateStorePerf.java:156)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStorePerf.main(TestZKRMStateStorePerf.java:273)
{noformat}

There are 2 places variable {{curatorTestingServer}} used that need to be guarded with null
check.



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