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From Himawan Mahardianto <mahardia...@ugm.ac.id>
Subject Re: Connection Refused Error
Date Mon, 20 Apr 2015 13:17:27 GMT
Are you sure the namenode is running well from ouput on jps command?
Have you try to give an IP on your PC other than 127.0.0.1?
and could you paste your /etc/hosts and hadoop_folder/etc/hadoop/slaves
file configuration on this reply?

On Mon, Apr 20, 2015 at 8:10 PM, Anand Murali <anand_vihar@yahoo.com> wrote:

> Hi
>
> But the Hadoop wiki say this is a network issue especially with Ubuntu.
> Please look at my paste and follow thru link.
>
> As regards my temporary solution. I have to remove all Hadoop files and re
> extract it and start over and then it works for a couple of runs before it
> starts all over again.
>
> Sent from my iPhone
>
> On 20-Apr-2015, at 6:21 pm, Himawan Mahardianto <mahardianto@ugm.ac.id>
> wrote:
>
> you just run "jps" on your terminal, here my jps output command on my
> namenode:
>
> hadoop@node-17:~$ jps
>
> 18487 Jps
>
> 18150 NameNode
>
> 18385 SecondaryNameNode
>
> hadoop@node-17:~$
>
> from that output I could make sure that my namenode is running well, how
> bout your namenode, are you sure it's running well or not?
>
> On Mon, Apr 20, 2015 at 7:24 PM, Anand Murali <anand_vihar@yahoo.com>
> wrote:
>
>> No. I shall try. Can you point me to jps resources.
>>
>> Thanks
>>
>> Anand Murali
>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore
>> Chennai - 600 004, India
>> Ph: (044)- 28474593/ 43526162 (voicemail)
>>
>>
>>
>>   On Monday, April 20, 2015 5:50 PM, Himawan Mahardianto <
>> mahardianto@ugm.ac.id> wrote:
>>
>>
>> have you try jps command and looking what hadoop service is running?
>>
>> On Mon, Apr 20, 2015 at 6:45 PM, Anand Murali <anand_vihar@yahoo.com>
>> wrote:
>>
>> Yes. All Hadoop commands. The error message is linked to IP address,a dn
>> I checked Hadoop wiki, this is a network issue on Ubuntu. Unfortunately, I
>> dont know much about networks.
>>
>> Anand Murali
>> 11/7, 'Anand Vihar', Kandasamy St, Mylapore
>> Chennai - 600 004, India
>> Ph: (044)- 28474593/ 43526162 (voicemail)
>>
>>
>>
>>   On Monday, April 20, 2015 5:13 PM, Himawan Mahardianto <
>> mahardianto@ugm.ac.id> wrote:
>>
>>
>> have you try:
>> hdfs dfs -ls /
>> *with slash in the end of command?
>>
>> On Mon, Apr 20, 2015 at 5:50 PM, Anand Murali <anand_vihar@yahoo.com>
>> wrote:
>>
>> Hi All:
>>
>> I am using Ubuntu 14.10 desktop and Hadoop-2.6 pseudo mode.
>> Start-dfs/Stop-dfs is normal. However, after a couple of times of usage,
>> when I try to connect to HDFS,, I am refused connection. Find below
>>
>> anand_vihar@Latitude-E5540:~$ ssh localhost
>> Welcome to Ubuntu 14.10 (GNU/Linux 3.16.0-34-generic x86_64)
>>
>>  * Documentation:  https://help.ubuntu.com/
>>
>> Last login: Mon Apr 20 15:43:58 2015 from localhost
>> anand_vihar@Latitude-E5540:~$ cd hadoop-2.6.0
>> anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ . .hadoop
>> /home/anand_vihar/hadoop-2.6.0
>> /home/anand_vihar/jdk1.7.0_75
>> /home/anand_vihar/hadoop-2.6.0
>> anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ start-dfs.sh
>> Starting namenodes on [localhost]
>> localhost: starting namenode, logging to
>> /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-namenode-Latitude-E5540.out
>> localhost: starting datanode, logging to
>> /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-datanode-Latitude-E5540.out
>> Starting secondary namenodes [0.0.0.0]
>> 0.0.0.0: starting secondarynamenode, logging to
>> /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-secondarynamenode-Latitude-E5540.out
>> anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ hdfs dfs -ls
>> ls: Call From Latitude-E5540/127.0.1.1 to localhost:9000 failed on
>> connection exception: java.net.ConnectException: Connection refused; For
>> more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
>> anand_vihar@Latitude-E5540:~/hadoop-2.6.0$
>>
>>
>>
>> If I completely delete Hadoop and re-install, it starts working. Can
>> somebody advise on this issue.
>>
>> Many thanks
>>
>>
>> Regards
>>
>> Anand Murali
>>
>>
>>
>>
>>
>>
>>
>>
>

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