[HADOOP-5139] RPC call throws IllegalArgumentException complaining duplicate metrics registration

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.20.0
• Component/s: ipc
• Hadoop Flags: Reviewed
• Assignee: Hairong Kuang
• Reporter: Hairong Kuang
• Created: 28/Jan/09 23:02
• Updated: 23/Apr/09 19:18
• Resolved: 29/Jan/09 17:53

Description

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)