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From "Dima Brodsky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3802) IPC - Heartbeat exceptions filling up log files
Date Mon, 21 Jul 2008 17:39:31 GMT
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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