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From "Harsh J (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-58) Duplicate metric name getTask
Date Sat, 31 Dec 2011 09:42:30 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-58?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harsh J resolved MAPREDUCE-58.
------------------------------

    Resolution: Not A Problem

Does not occur in task launches anymore.
                
> Duplicate metric name getTask
> -----------------------------
>
>                 Key: MAPREDUCE-58
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-58
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            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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