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https://issues.apache.org/jira/browse/HADOOP-3802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615387#action_12615387
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Raghu Angadi commented on HADOOP-3802:
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HADOOP-3758 fixes the the DataNode so that it shutsdown shutdown.
> IPC - Heartbeat exceptions filling up log files
> -----------------------------------------------
>
> Key: HADOOP-3802
> URL: https://issues.apache.org/jira/browse/HADOOP-3802
> Project: Hadoop Core
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.17.1
> Environment: Linux 2.6.17-1.2142_FC4smp #1 SMP Tue Jul 11 22:59:20
> EDT 2006 x86_64 x86_64 x86_64 GNU/Linux -- Fedora Core 4
> Reporter: Dima Brodsky
>
> We have a datanode (10.0.0.93) that is in a semi-live state. An ssh session
> is able to do a connect but is unable to send or receive any data. The
> connection is closed immediately after the connection is established.
> Because of this, the name node's logs are full of the following message:
> 2008-07-21 09:36:10,800 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 1on 9000, call sendHeartbeat(10.0.0.193:50010, 917638877184, 20480,
> 644100882925, 0, 0) from 10.0.0.193:55908: error:
> org.apache.hadoop.dfs.IncorrectVersionException: Unexpected version of data
> node. Reported: -11. Expecting = -13.
> org.apache.hadoop.dfs.IncorrectVersionException: Unexpected version of data
> node. Reported: -11. Expecting = -13.
> at org.apache.hadoop.dfs.NameNode.verifyVersion(NameNode.java:682)
> at org.apache.hadoop.dfs.NameNode.verifyRequest(NameNode.java:669)
> at org.apache.hadoop.dfs.NameNode.sendHeartbeat(NameNode.java:557)
> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:446)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896)
> Approximately generating 100MB a minute.
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