Hi, all. Today I noticed that my hadoop cluster (r0.20.0+jdk1.6) threw
some errors in RPC handling. Below is part of the content of namenode
log file:
2009-05-12 10:27:08,200 INFO org.apache.hadoop.ipc.Server: Error
register getProtocolVersion
java.lang.IllegalArgumentException: Duplicate metricsName:getProtocolVersion
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$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$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)
2009-05-12 10:27:08,200 INFO org.apache.hadoop.ipc.Server: Error
register getProtocolVersion
java.lang.IllegalArgumentException: Duplicate metricsName:getProtocolVersion
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$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$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)
2009-05-12 10:27:08,200 INFO org.apache.hadoop.ipc.Server: Error
register getProtocolVersion
java.lang.IllegalArgumentException: Duplicate metricsName:getProtocolVersion
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$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$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)
2009-05-12 10:27:08,276 INFO org.apache.hadoop.ipc.Server: Error
register getBuildVersion
java.lang.IllegalArgumentException: Duplicate metricsName:getBuildVersion
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$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$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)
I noticed that the similar error appears on the log in every datanode.
Can anybody tell me how to fix this?
I have patched this:
https://issues.apache.org/jira/browse/HADOOP-5139, but the error still
exist. I really don't know what to do and am expecting for your help!
Best regards,
Starry
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