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From Anand Murali <anand_vi...@yahoo.com>
Subject Re: Connection Refused Error
Date Mon, 20 Apr 2015 13:10:15 GMT
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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