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Date: Mon, 20 Apr 2015 10:50:36 +0000 (UTC)
From: Anand Murali <anand_vihar@yahoo.com>
Reply-To: Anand Murali <anand_vihar@yahoo.com>
To: User Hadoop <user@hadoop.apache.org>
Message-ID: <959186652.278616.1429527036559.JavaMail.yahoo@mail.yahoo.com>
Subject: Connection Refused Error
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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 con=
nect 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)

=C2=A0* Documentation:=C2=A0 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/log=
s/hadoop-anand_vihar-namenode-Latitude-E5540.out
localhost: starting datanode, logging to /home/anand_vihar/hadoop-2.6.0/log=
s/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 connecti=
on exception: java.net.ConnectException: Connection refused; For more detai=
ls see:=C2=A0 http://wiki.apache.org/hadoop/ConnectionRefused
anand_vihar@Latitude-E5540:~/hadoop-2.6.0$=20


If I completely delete Hadoop and re-install, it starts working. Can somebo=
dy advise on this issue.
Many thanks

Regards
=C2=A0Anand Murali=C2=A0=C2=A0

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<html><body><div style=3D"color:#000; background-color:#fff; font-family:He=
lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;fo=
nt-size:12px"><div>Hi All:</div><div><br></div><div dir=3D"ltr">I am using =
Ubuntu 14.10 desktop and Hadoop-2.6 pseudo mode. Start-dfs/Stop-dfs is norm=
al. However, after a couple of times of usage, when I try to connect to HDF=
S,, I am refused connection. Find below</div><div dir=3D"ltr"><br></div><di=
v id=3D"yui_3_16_0_1_1429526750432_2995" dir=3D"ltr">anand_vihar@Latitude-E=
5540:~$ ssh localhost<br style=3D"" class=3D"">Welcome to Ubuntu 14.10 (GNU=
/Linux 3.16.0-34-generic x86_64)<br style=3D"" class=3D""><br style=3D"" cl=
ass=3D"">&nbsp;* Documentation:&nbsp; https://help.ubuntu.com/<br style=3D"=
" class=3D""><br style=3D"" class=3D"">Last login: Mon Apr 20 15:43:58 2015=
 from localhost<br style=3D"" class=3D"">anand_vihar@Latitude-E5540:~$ cd h=
adoop-2.6.0<br style=3D"" class=3D"">anand_vihar@Latitude-E5540:~/hadoop-2.=
6.0$ . .hadoop<br style=3D"" class=3D"">/home/anand_vihar/hadoop-2.6.0<br s=
tyle=3D"" class=3D"">/home/anand_vihar/jdk1.7.0_75<br style=3D"" class=3D""=
>/home/anand_vihar/hadoop-2.6.0<br style=3D"" class=3D"">anand_vihar@Latitu=
de-E5540:~/hadoop-2.6.0$ start-dfs.sh<br style=3D"" class=3D"">Starting nam=
enodes on [localhost]<br style=3D"" class=3D"">localhost: starting namenode=
, logging to /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-namenod=
e-Latitude-E5540.out<br style=3D"" class=3D"">localhost: starting datanode,=
 logging to /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-datanode=
-Latitude-E5540.out<br style=3D"" class=3D"">Starting secondary namenodes [=
0.0.0.0]<br style=3D"" class=3D"">0.0.0.0: starting secondarynamenode, logg=
ing to /home/anand_vihar/hadoop-2.6.0/logs/hadoop-anand_vihar-secondaryname=
node-Latitude-E5540.out<br style=3D"" class=3D"">anand_vihar@Latitude-E5540=
:~/hadoop-2.6.0$ hdfs dfs -ls<br style=3D"" class=3D"">ls: Call From Latitu=
de-E5540/127.0.1.1 to localhost:9000 failed on connection exception: java.n=
et.ConnectException: Connection refused; For more details see:&nbsp; http:/=
/wiki.apache.org/hadoop/ConnectionRefused<br style=3D"" class=3D"">anand_vi=
har@Latitude-E5540:~/hadoop-2.6.0$ <br style=3D"" class=3D""></div><div id=
=3D"yui_3_16_0_1_1429526750432_2996" dir=3D"ltr"><br></div><div id=3D"yui_3=
_16_0_1_1429526750432_3018" dir=3D"ltr"><br></div><div id=3D"yui_3_16_0_1_1=
429526750432_3019" dir=3D"ltr"><br></div><div dir=3D"ltr">If I completely d=
elete Hadoop and re-install, it starts working. Can somebody advise on this=
 issue.</div><div id=3D"yui_3_16_0_1_1429526750432_3020" dir=3D"ltr"><br></=
div><div dir=3D"ltr">Many thanks</div><div id=3D"yui_3_16_0_1_1429526750432=
_3021" dir=3D"ltr"><br></div><div id=3D"yui_3_16_0_1_1429526750432_3022" di=
r=3D"ltr"><br></div><div id=3D"yui_3_16_0_1_1429526750432_3023" dir=3D"ltr"=
>Regards<br></div><div><span></span></div><div id=3D"yui_3_16_0_1_142952675=
0432_3024">&nbsp;</div><div id=3D"yui_3_16_0_1_1429526750432_3026" class=3D=
"signature"><div id=3D"yui_3_16_0_1_1429526750432_3025"><font size=3D"2" co=
lor=3D"#00ff80">Anand Murali&nbsp;&nbsp;</font></div><br></div></div></body=
></html>
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