[MAPREDUCE-58] Duplicate metric name getTask

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Assignee: Unassigned
• Reporter: Owen O'Malley
• Created: 14/Apr/09 22:29
• Updated: 31/Dec/11 09:40
• Resolved: 31/Dec/11 09:40

Description

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

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)