Duplicate metric name getTask
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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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