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Hadoop >> mail # user >> Differences hadoop-2.0.0-alpha Vs hadoop-2.0.3-alpha


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Krishna Kishore Bonagiri 2013-03-26, 10:21
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Re: Differences hadoop-2.0.0-alpha Vs hadoop-2.0.3-alpha
Hi Arun,

 Thanks for the reply. I have just compiled and ran my
ApplicationMaste.java and Client.java against hadoop-2.0.3-alpha and
getting this exception. The same runs fine on 2.0.0. Please suggest me what
could be the issue...

2013-03-28 00:50:47,576 FATAL [main] Client (Client.java:main(151)) - Error
running CLient
java.lang.reflect.UndeclaredThrowableException
        at
org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl.unwrapAndThrowException(YarnRemoteExceptionPBImpl.java:128)
        at
org.apache.hadoop.yarn.api.impl.pb.client.ClientRMProtocolPBClientImpl.getQueueInfo(ClientRMProtocolPBClientImpl.java:215)
        at Client.dumpClusterInfo(Client.java:263)
        at Client.launchAndMonitorAM(Client.java:471)
        at Client.main(Client.java:149)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
        at java.lang.reflect.Method.invoke(Method.java:611)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
Caused by:
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException
        at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:779)
        at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.getQueueInfo(CapacityScheduler.java:542)
        at
org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getQueueInfo(ClientRMService.java:420)
        at
org.apache.hadoop.yarn.api.impl.pb.service.ClientRMProtocolPBServiceImpl.getQueueInfo(ClientRMProtocolPBServiceImpl.java:191)
        at
org.apache.hadoop.yarn.proto.ClientRMProtocol$ClientRMProtocolService$2.callBlockingMethod(ClientRMProtocol.java:214)
        at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1014)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1735)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1731)
        at
java.security.AccessController.doPrivileged(AccessController.java:284)
        at javax.security.auth.Subject.doAs(Subject.java:573)
        at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1441)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1729)

        at org.apache.hadoop.ipc.Client.call(Client.java:1235)
        at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
        at $Proxy4.getQueueInfo(Unknown Source)
        at
org.apache.hadoop.yarn.api.impl.pb.client.ClientRMProtocolPBClientImpl.getQueueInfo(ClientRMProtocolPBClientImpl.java:212)
        ... 8 more

Thanks,
Kishore
On Thu, Mar 28, 2013 at 2:39 AM, Arun C Murthy <[EMAIL PROTECTED]> wrote:

> YarnClient etc. is a just a bunch of helper libs to make it easier to
> write new applications.
>
> OTOH, your existing application should continue to work.
>
> hth,
> Arun
>
> On Mar 26, 2013, at 3:21 AM, Krishna Kishore Bonagiri wrote:
>
> Hi,
>   I  have some YARN application written and running properly against
> hadoop-2.0.0-alpha but when I recently downloaded and started using
> hadoop-2.0.3-alpha it doesn't work. I think the original one I wrote was
> looking at the Client.java and ApplicationMaster.java in DistributedShell
> example. It looks like this example code also has changed with the new
> version, it now has the Client being extended from YarnClientImpl and many
> other changes it has.
>
>   Is there any guide as to how should I modify my old application to work
> against the new version?
>
> Thanks,
> Kishore
>
>
> --
> Arun C. Murthy
> Hortonworks Inc.
> http://hortonworks.com/
>
>
>
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Krishna Kishore Bonagiri 2013-03-29, 09:32