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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1556) NPE getting application report with a null appId
Date Fri, 28 Aug 2015 13:35:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-1556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14718568#comment-14718568
] 

Hudson commented on YARN-1556:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #316 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/316/])
YARN-1556. NPE getting application report with a null appId. Contributed by Weiwei Yang. (junping_du:
rev beb65c9465806114237aa271b07b31ff3c1f4404)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestClientRMService.java
* hadoop-yarn-project/CHANGES.txt
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ClientRMService.java


> NPE getting application report with a null appId
> ------------------------------------------------
>
>                 Key: YARN-1556
>                 URL: https://issues.apache.org/jira/browse/YARN-1556
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.7.1
>            Reporter: Steve Loughran
>            Assignee: Weiwei Yang
>            Priority: Trivial
>             Fix For: 2.8.0
>
>         Attachments: YARN-1556.patch
>
>
> If you accidentally pass in a null appId to get application report, you get an NPE back.
This is arguably as intended, except that maybe a guard statement could report this in such
a way as to make it easy for callers to track down the cause.
> {code}
> java.lang.NullPointerException: java.lang.NullPointerException
> org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): java.lang.NullPointerException
> 	at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)
> 	at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:988)
> 	at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:243)
> 	at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:120)
> 	at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:241)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
> 	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
> 	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2048)
> 	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2042)
> 	at org.apache.hadoop.ipc.Client.call(Client.java:1347)
> 	at org.apache.hadoop.ipc.Client.call(Client.java:1300)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
> 	at com.sun.proxy.$Proxy75.getApplicationReport(Unknown Source)
> 	at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationClientProtocolPBClientImpl.getApplicationReport(ApplicationClientProtocolPBClientImpl.java:137)
> 	... 28 more
> {code}



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