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From "Nishan Shetty (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4460) Refresh queue throws IO exception after configuring wrong queue capacity
Date Thu, 19 Jul 2012 05:26:34 GMT
Nishan Shetty created MAPREDUCE-4460:
----------------------------------------

             Summary: Refresh queue throws IO exception after configuring wrong queue capacity
                 Key: MAPREDUCE-4460
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4460
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 2.1.0-alpha
            Reporter: Nishan Shetty


Scenario:
1.My setup has a,b queues(each with capacity say 50%) under root queue
2.Start the process
3.Add one more queue 'c' under root
4.Configure some capacity for 'c' such that total capacity of a,b,c is not equal to 100
5.Now do refresh queues, it will throw exception as wrong capacity(This is expected as capacity
was not equal to 100).
6.Now reconfigure queue capacities of a,b,c such that total capacity is 100
5.Now do refresh queues again

Observed that it throws IO exception
{noformat}
java.io.IOException: Failed to re-init queues
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.reinitialize(CapacityScheduler.java:216)
        at org.apache.hadoop.yarn.server.resourcemanager.AdminService.refreshQueues(AdminService.java:174)
        at org.apache.hadoop.yarn.server.resourcemanager.api.impl.pb.service.RMAdminProtocolPBServiceImpl.refreshQueues(RMAdminProtocolPBServiceImpl.java:62)
        at org.apache.hadoop.yarn.proto.RMAdminProtocol$RMAdminProtocolService$2.callBlockingMethod(RMAdminProtocol.java:122)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:427)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:916)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1692)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1688)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1686)
Caused by: org.apache.hadoop.metrics2.MetricsException: Metrics source QueueMetrics,q0=root,q1=c
already exists!
        at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:126)
        at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:107)
        at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:216)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics.forQueue(QueueMetrics.java:129)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics.forQueue(QueueMetrics.java:119)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.<init>(LeafQueue.java:136)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.parseQueue(CapacityScheduler.java:313)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.parseQueue(CapacityScheduler.java:328)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.reinitializeQueues(CapacityScheduler.java:246)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.reinitialize(CapacityScheduler.java:213)
        ... 11 more
 at LocalTrace:
        org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl: Failed to re-init
queues
        at org.apache.hadoop.yarn.factories.impl.pb.YarnRemoteExceptionFactoryPBImpl.createYarnRemoteException(YarnRemoteExceptionFactoryPBImpl.java:50)
        at org.apache.hadoop.yarn.ipc.RPCUtil.getRemoteException(RPCUtil.java:40)
        at org.apache.hadoop.yarn.server.resourcemanager.AdminService.refreshQueues(AdminService.java:184)
        at org.apache.hadoop.yarn.server.resourcemanager.api.impl.pb.service.RMAdminProtocolPBServiceImpl.refreshQueues(RMAdminProtocolPBServiceImpl.java:62)
        at org.apache.hadoop.yarn.proto.RMAdminProtocol$RMAdminProtocolService$2.callBlockingMethod(RMAdminProtocol.java:122)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:427)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:916)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1692)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1688)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1686)
Caused by: org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl: Metrics source
QueueMetrics,q0=root,q1=c already exists!
        at org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl.getCause(YarnRemoteExceptionPBImpl.java:94)
        at org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl.getCause(YarnRemoteExceptionPBImpl.java:32)
        at java.lang.Throwable.printStackTrace(Throwable.java:514)
        at org.apache.hadoop.yarn.exceptions.YarnRemoteException.printStackTrace(YarnRemoteException.java:48)
        at org.apache.hadoop.util.StringUtils.stringifyException(StringUtils.java:69)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1715)
{noformat}

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