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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5674) Duplicate metric name getTask
Date Tue, 14 Apr 2009 22:29:15 GMT
Duplicate metric name getTask
-----------------------------

                 Key: HADOOP-5674
                 URL: https://issues.apache.org/jira/browse/HADOOP-5674
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
            Reporter: Owen O'Malley


I've been seeing the following error in some tasks:

{noformat}
org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.IllegalArgumentException:
Duplicate metricsName:getTask
        at org.apache.hadoop.metrics.util.MetricsRegistry.add(MetricsRegistry.java:56)
        at org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:89)
        at org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:99)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:522)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
        at org.apache.hadoop.ipc.Client.call(Client.java:736)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
        at $Proxy0.getTask(Unknown Source)
        at org.apache.hadoop.mapred.Child.main(Child.java:109)
{noformat}


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