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https://issues.apache.org/jira/browse/HADOOP-5139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HADOOP-5139:
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Hadoop Flags: [Reviewed]
+1 patch looks good.
> RPC call throws IllegalArgumentException complaining duplicate metrics
> registration
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-5139
> URL: https://issues.apache.org/jira/browse/HADOOP-5139
> Project: Hadoop Core
> Issue Type: Bug
> Components: ipc
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.19.1
>
> Attachments: rpcException.patch
>
>
> Here is the error log:
> INFO ipc.Server (Server.java:run(968)) - IPC Server handler 7 on 51017,
> call addBlock(/file7, DFSClient_-2132593831) from 127.0.0.1:51030: error:
> java.io.IOException: java.lang.IllegalArgumentException: Duplicate
> metricsName:addBlock
> java.io.IOException: java.lang.IllegalArgumentException:
> DuplicatemetricsName:addBlock
> 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)
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