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From Harsh J <ha...@cloudera.com>
Subject Re: Error on datanode
Date Wed, 01 Feb 2012 12:02:36 GMT
Martinus,

Can you, from your client node, do a successful "telnet 172.16.2.145
50010" operation? I'm guessing there's probably a network or network
configuration fault at play here, mostly.

On Tue, Jan 31, 2012 at 12:15 PM, Martinus Martinus
<martinus787@gmail.com> wrote:
> Hi Harsh,
>
> When I typed in bin/hadoop jar hadoop-examples-1.0.0.jar wordcount input
> output, it just keep hanging and didn't stop. and the log is from the DN
> when I running the job.
>
> Thanks.
>
>
> On Tue, Jan 31, 2012 at 1:56 PM, Harsh J <harsh@cloudera.com> wrote:
>>
>> Did this also lead to a task/job failure, or did you just notice the
>> log on the DN after running a job?
>>
>> On Tue, Jan 31, 2012 at 11:24 AM, Martinus Martinus
>> <martinus787@gmail.com> wrote:
>> > Hi,
>> >
>> > I have my hadoop clusters running with 1 master and 6 slaves, and when I
>> > run
>> > bin/hadoop jar hadoop-examples-1.0.0.jar wordcount input output, I got
>> > the
>> > following error message from my slave datanode logs :
>> >
>> > java.net.SocketTimeoutException: 63000 millis timeout while waiting for
>> > channel to be ready for connect. ch :
>> > java.nio.channels.SocketChannel[connection-pending
>> > remote=/172.16.2.145:50010]
>> >     at
>> >
>> > org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:213)
>> >     at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:656)
>> >     at
>> >
>> > org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:319)
>> >     at
>> >
>> > org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:107)
>> >     at java.lang.Thread.run(Thread.java:662)
>> >
>> > Would anyone be so kindly to help me on this?
>> >
>> > Thanks.
>>
>>
>>
>> --
>> Harsh J
>> Customer Ops. Engineer, Cloudera
>
>



-- 
Harsh J
Customer Ops. Engineer
Cloudera | http://tiny.cloudera.com/about

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