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From Amit Gupta <gupta.v.a...@gmail.com>
Subject Datanode Heartbeat Error Messages
Date Wed, 20 Apr 2011 06:46:59 GMT
Hi,
Upon launching the Namenode and Datanodes, I seem to be getting the
following error messages
(on freshly checkedout and built code) at a datanode:

*
(In the /mnt/hadoop/logs/hadoop-root-datanode-*.log file )
*
*
###########################################################################################
*
*2011-04-20 02:40:35,875 WARN
org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException:
java.lang.NumberFormatException: For input string: "dfs.heartbeat.interval"*
* at
java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
*
* at java.lang.Long.parseLong(Long.java:403)*
* at java.lang.Long.parseLong(Long.java:461)*
* at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.handleHeartbeat(FSNamesystem.java:2811)
*
* at
org.apache.hadoop.hdfs.server.namenode.NameNode.sendHeartbeat(NameNode.java:1274)
*
* at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)*
* at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
*
* at java.lang.reflect.Method.invoke(Method.java:597)*
* at
org.apache.hadoop.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:357)
*
* at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1412)*
* at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1408)*
* at java.security.AccessController.doPrivileged(Native Method)*
* at javax.security.auth.Subject.doAs(Subject.java:396)*
* at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1142)
*
* at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1406)*
*
*
* at org.apache.hadoop.ipc.Client.call(Client.java:1028)*
* at
org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:197)
*
* at $Proxy4.sendHeartbeat(Unknown Source)*
* at
org.apache.hadoop.hdfs.server.datanode.DataNode.offerService(DataNode.java:933)
*
* at org.apache.hadoop.hdfs.server.datanode.DataNode.run(DataNode.java:1485)
*
* at java.lang.Thread.run(Thread.java:619)*
*
###########################################################################################
*

Is this related any recent commits?
Would appreciate any help/guidance.

Thanks,
-- 
Amit Gupta

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