It looks like the data node can not connect to the name node.
Are you sure the data node and name node use the same version of hadoop ?

On Fri, Feb 5, 2010 at 7:24 AM, gillggx <[EMAIL PROTECTED]> wrote:

>
> Dear all,
>
> I want to build a Hadoop cluster, when I finish the hadoop installation, it
> seems work.
>
> However, after starting the DFS, the datanode in slave server will shut
> down
> with the following error message:
>
> 2010-02-05 21:52:30,342 INFO
> org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
> /************************************************************
> STARTUP_MSG: Starting DataNode
> STARTUP_MSG:   host = pcgill/192.168.96.128
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 0.20.1
> STARTUP_MSG:   build > http://svn.apache.org/repos/asf/hadoop/common/tags/release-0.20.1-rc1 -r
> 810220; compiled by 'oom' on Tue Sep  1 20:55:56 UTC 2009
> ************************************************************/
> 2010-02-05 21:53:00,644 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Call
> to /192.168.0.1:9000 failed on local exception: java.io.IOException:
> Connection reset by peer
>        at org.apache.hadoop.ipc.Client.wrapException(Client.java:774)
>        at org.apache.hadoop.ipc.Client.call(Client.java:742)
>        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>        at $Proxy4.getProtocolVersion(Unknown Source)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:346)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:383)
>        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:314)
>        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:291)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:269)
>        at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1246)
>        at
> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1368)
> Caused by: java.io.IOException: Connection reset by peer
>        at sun.nio.ch.FileDispatcher.read0(Native Method)
>        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
>        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
>        at sun.nio.ch.IOUtil.read(IOUtil.java:206)
>        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
>        at
>
> org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
>        at
>
> org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
>        at
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:155)
>        at
> org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:128)
>        at java.io.FilterInputStream.read(FilterInputStream.java:116)
>        at
>
> org.apache.hadoop.ipc.Client$Connection$PingInputStream.read(Client.java:276)
>        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
>        at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
>        at java.io.DataInputStream.readInt(DataInputStream.java:370)
>        at
> org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:501)
>        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:446)
>
> 2010-02-05 21:53:00,645 INFO
> org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down DataNode at pcgill/192.168.96.128
> ************************************************************/
>
> My master and slave servers could connect with each other by using SSH
> Only the datanode will shut down, but the tasktracker of slave server will
Best Regards

Jeff Zhang

Dear all,

I want to build a Hadoop cluster, when I finish the hadoop installation, it
seems work.

However, after starting the DFS, the datanode in slave server will shut down
with the following error message:

2010-02-05 21:52:30,342 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = pcgill/192.168.96.128
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.20.1
STARTUP_MSG:   build http://svn.apache.org/repos/asf/hadoop/common/tags/release-0.20.1-rc1 -r
810220; compiled by 'oom' on Tue Sep  1 20:55:56 UTC 2009
************************************************************/
2010-02-05 21:53:00,644 ERROR
org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Call
to /192.168.0.1:9000 failed on local exception: java.io.IOException:
Connection reset by peer
        at org.apache.hadoop.ipc.Client.wrapException(Client.java:774)
        at org.apache.hadoop.ipc.Client.call(Client.java:742)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
        at $Proxy4.getProtocolVersion(Unknown Source)
        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:346)
        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:383)
        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:314)
        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:291)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:269)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1246)
        at
org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1368)
Caused by: java.io.IOException: Connection reset by peer
        at sun.nio.ch.FileDispatcher.read0(Native Method)
        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
        at sun.nio.ch.IOUtil.read(IOUtil.java:206)
        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
        at
org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
        at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
        at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:155)
        at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:128)
        at java.io.FilterInputStream.read(FilterInputStream.java:116)
        at
org.apache.hadoop.ipc.Client$Connection$PingInputStream.read(Client.java:276)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
        at java.io.DataInputStream.readInt(DataInputStream.java:370)
        at
org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:501)
        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:446)

2010-02-05 21:53:00,645 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at pcgill/192.168.96.128
************************************************************/

My master and slave servers could connect with each other by using SSH
Only the datanode will shut down, but the tasktracker of slave server will
not.

Please help me to deal with the problem, thank you
--
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Sent from the Hadoop core-user mailing list archive at Nabble.com.

On Fri, Feb 5, 2010 at 11:24 PM, gillggx <[EMAIL PROTECTED]> wrote:
> 2010-02-05 21:53:00,644 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Call
> to /192.168.0.1:9000 failed on local exception: java.io.IOException:
> Connection reset by peer

you'd better check the log of namenode 192.168.0.1:9000, whether it
has any exception when the datanode try to connect to it.

--
Wang Xu
Pablo Picasso  - "Computers are useless. They can only give you
answers." - http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html