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From: Brad Sarsfield <brad@bing.com>
To: "user@hadoop.apache.org" <user@hadoop.apache.org>
Subject: RE: Permissions while running bin/hadoop
Thread-Topic: Permissions while running bin/hadoop
Thread-Index: AQHN2DTn7xbn/6OtWEWWVv6l5Mc6hpgVacOA
Date: Wed, 12 Dec 2012 18:05:32 +0000
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Hi Jenny,

You should consider looking at the branch-1-win which has removed the cygwi=
n dependency for running Hadoop on Windows.  There are vendors (Hortonworks=
, Microsoft) that provide free windows install packages that are simple to =
install as well.

~Brad

From: Jennifer Lopez [mailto:lopez.mirinda@gmail.com]
Sent: Tuesday, December 11, 2012 10:08 PM
To: user@hadoop.apache.org
Subject: Reg: Permissions while running bin/hadoop


I am using Hadoop 1.1.1 to prepare a POC for a simple project. I am using W=
indows 7 and cygwin for the same and it is a single node setup. I have only=
 my windows machine to use for this purpose and I login with my account tha=
t is created by my company.

I run all the commands from cygwin.


I am trying to setup the Standalone Operation and Pseudo-Distributed Operat=
ion as mentioned in the following link.
http://hadoop.apache.org/docs/r0.20.0/quickstart.html#Prepare+to+Start+the+=
Hadoop+Cluster

Scenario 1: Standalone Operation, no entries in the conf/*-site.xml
ran bin/hadoop jar hadoop*-exam*.jar grep input output 'dfs[a-z.]+'

Error:

12/12/12 11:05:45 ERROR security.UserGroupInformation: PriviledgedActionExc=
eption as:<user-id>
cause:java.io.IOException: Failed to set permissions of path: \tmp\hadoop-<=
user-id>\mapred\staging\<user-id>1619674617\.staging to 0700

I tried chmod 0700 to the above folder. But the error persists.

Scenario 2: Pseudo-Distributed Operation

Made necessary changes @ conf/*-site.xml as mentioned in the above link
ran the following commands
bin/hadoop namenode
bin/hadoop datanode
bin/start-mapred.sh

my jps states that

4524 JobTracker
7120 Jps
5200 DataNode
4736 NameNode

I look at my logs and find that the tasktracker had problem starting up.

Error:
2012-12-12 11:24:47,726 ERROR org.apache.hadoop.mapred.TaskTracker: Can not=
 start task tracker because java.io.IOException: Failed to set permissions =
of path: \tmp\hadoop-<user-id>\mapred\local\taskTracker to 0755
I tried chmod 0755 to the above folder. But the error persists.

When tasktracker prompts for password <user-id>@localhost's password, I ent=
er my login password

what am I missing here? Any help would be highly appreciated.

I would not be getting any access to *nix machines nor can I install a dual=
 OS. Company restrictions.

--Jenny


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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hi Jenny,<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">You should consider looki=
ng at the branch-1-win which has removed the cygwin dependency for running =
Hadoop on Windows.&nbsp; There are vendors (Hortonworks, Microsoft)
 that provide free windows install packages that are simple to install as w=
ell.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">~Brad<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-=
size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"> Jennif=
er Lopez [mailto:lopez.mirinda@gmail.com]
<br>
<b>Sent:</b> Tuesday, December 11, 2012 10:08 PM<br>
<b>To:</b> user@hadoop.apache.org<br>
<b>Subject:</b> Reg: Permissions while running bin/hadoop<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p>I am using Hadoop 1.1.1 to prepare a POC for a simple project. I am usin=
g Windows 7 and cygwin for the same and it is a single node setup. I have o=
nly my windows machine to use for this purpose and I login with my account =
that is created by my company.<br>
&nbsp;<br>
I run all the commands from cygwin.<br>
&nbsp;<o:p></o:p></p>
<p>I am trying to setup the Standalone Operation and Pseudo-Distributed Ope=
ration as mentioned in the following link.<br>
<a href=3D"http://hadoop.apache.org/docs/r0.20.0/quickstart.html#Prepare=
3;to&#43;Start&#43;the&#43;Hadoop&#43;Cluster">http://hadoop.apache.org/doc=
s/r0.20.0/quickstart.html#Prepare&#43;to&#43;Start&#43;the&#43;Hadoop&#43;C=
luster</a><br>
&nbsp;<br>
Scenario 1: Standalone Operation, no entries in the conf/*-site.xml<br>
ran bin/hadoop jar hadoop*-exam*.jar grep input output 'dfs[a-z.]&#43;'<o:p=
></o:p></p>
<p>Error: <o:p></o:p></p>
<p>12/12/12 11:05:45 ERROR security.UserGroupInformation: PriviledgedAction=
Exception as:&lt;user-id&gt;<br>
cause:java.io.IOException: Failed to set permissions of path: \tmp\hadoop-&=
lt;user-id&gt;\mapred\staging\&lt;user-id&gt;1619674617\.staging to 0700<br=
>
&nbsp;<br>
I tried chmod 0700 to the above folder. But the error persists.<o:p></o:p><=
/p>
<p>Scenario 2: Pseudo-Distributed Operation <o:p></o:p></p>
<p>Made necessary changes @ conf/*-site.xml as mentioned in the above link =
<br>
ran the following commands<br>
bin/hadoop namenode<br>
bin/hadoop datanode<br>
bin/start-mapred.sh<o:p></o:p></p>
<p>my jps states that <o:p></o:p></p>
<p>4524 JobTracker<br>
7120 Jps<br>
5200 DataNode<br>
4736 NameNode<o:p></o:p></p>
<p>I look at my logs and find that the tasktracker had problem starting up.=
<o:p></o:p></p>
<p>Error: <br>
2012-12-12 11:24:47,726 ERROR org.apache.hadoop.mapred.TaskTracker: Can not=
 start task tracker because java.io.IOException: Failed to set permissions =
of path: \tmp\hadoop-&lt;user-id&gt;\mapred\local\taskTracker to 0755<br>
I tried chmod 0755 to the above folder. But the error persists.<o:p></o:p><=
/p>
<p>When tasktracker prompts for password &lt;user-id&gt;@localhost's passwo=
rd, I enter my login password<o:p></o:p></p>
<p>what am I missing here? Any help would be highly appreciated.<o:p></o:p>=
</p>
<p>I would not be getting any access to *nix machines nor can I install a d=
ual OS. Company restrictions.<o:p></o:p></p>
<p><br>
--Jenny<o:p></o:p></p>
<p>&nbsp;<br>
&nbsp;<o:p></o:p></p>
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