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From Todd Lipcon <t...@cloudera.com>
Subject Re: java.io.IOException: Function not implemented
Date Mon, 29 Mar 2010 19:56:56 GMT
Hi Edson,

What operating system are you on? What kernel version?

Thanks
-Todd

On Mon, Mar 29, 2010 at 12:01 PM, Edson Ramiro <erlfilho@gmail.com> wrote:

> Hi all,
>
> I'm trying to install Hadoop on a cluster, but I'm getting this error.
>
> I'm using java version "1.6.0_17" and hadoop-0.20.1+169.56.tar.gz from
> Cloudera.
>
> Its running in a NFS home shared between the nodes and masters.
>
> The NameNode works well, but all nodes try to connect and fail.
>
> Any Idea ?
>
> Thanks in Advance.
>
> ==> logs/hadoop-ramiro-datanode-a05.log <==
> 2010-03-29 15:56:00,168 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 0 time(s).
> 2010-03-29 15:56:01,172 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 1 time(s).
> 2010-03-29 15:56:02,176 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 2 time(s).
> 2010-03-29 15:56:03,180 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 3 time(s).
> 2010-03-29 15:56:04,184 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 4 time(s).
> 2010-03-29 15:56:05,188 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 5 time(s).
> 2010-03-29 15:56:06,192 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 6 time(s).
> 2010-03-29 15:56:07,196 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 7 time(s).
> 2010-03-29 15:56:08,200 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 8 time(s).
> 2010-03-29 15:56:09,204 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: lcpad/192.168.1.51:9000. Already tried 9 time(s).
> 2010-03-29 15:56:09,204 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Call
> to lcpad/192.168.1.51:9000 failed on local exception: java.io.IOException:
> Function not implemented
>        at org.apache.hadoop.ipc.Client.wrapException(Client.java:775)
>        at org.apache.hadoop.ipc.Client.call(Client.java:743)
>        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>        at $Proxy4.getProtocolVersion(Unknown Source)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:346)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:383)
>        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:314)
>        at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:291)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:278)
>        at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:225)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1309)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1264)
>        at
>
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1272)
>        at
> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1394)
> Caused by: java.io.IOException: Function not implemented
>        at sun.nio.ch.EPollArrayWrapper.epollCreate(Native Method)
>        at sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:68)
>        at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:52)
>        at
>
> sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18)
>        at
>
> org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.get(SocketIOWithTimeout.java:407)
>        at
>
> org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:322)
>        at
>
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:203)
>        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:407)
>        at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:304)
>        at
> org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:176)
>        at org.apache.hadoop.ipc.Client.getConnection(Client.java:860)
>        at org.apache.hadoop.ipc.Client.call(Client.java:720)
>        ... 13 more
>
> Edson Ramiro
>



-- 
Todd Lipcon
Software Engineer, Cloudera

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