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From Sudhir Vallamkondu <Sudhir.Vallamko...@icrossing.com>
Subject Re: UI doesn't work
Date Wed, 29 Dec 2010 02:02:18 GMT
I recently had this issue. UI links were working for some nodes meaning when
I go to dfsHealth.jsp page and following some cluster data node links some
would work and some would show a 404 error.

I started tracing them all the way from the listening ports. Data nodes port
is 50010 so do a netsat on that port to find what process is listening in.
Then check that process to see if its the data node. The issue I had was
somehow when I did the hadoop upgrade I had a older instance and a new
instance of data node running and it was all messed up so I had to kill all
hadoop processes and do a clean start.

On 12/27/10 9:22 PM, "common-user-digest-help@hadoop.apache.org"
<common-user-digest-help@hadoop.apache.org> wrote:

> From: Harsh J <qwertymaniac@gmail.com>
> Date: Tue, 28 Dec 2010 09:51:11 +0530
> To: <common-user@hadoop.apache.org>
> Subject: Re: UI doesn't work
> I remember facing such an issue with the JT (50030) once. None of the
> jsp pages would load, 'cept the index. It was some odd issue with the
> webapps not getting loaded right while startup. Don't quite remember
> how it got solved.
> Did you do any ant operation on your release copy of Hadoop prior to
> starting it, by the way?
> On Tue, Dec 28, 2010 at 5:15 AM, maha <maha@umail.ucsb.edu> wrote:
>> Hi,
>>  I get Error 404 when I try to use hadoop UI to monitor my job execution. I'm
>> using Hadoop-0.20.2 and the following are parts of my configuration files.
>>  in Core-site.xml:
>>    <name>fs.default.name</name>
>>    <value>hdfs://speed.cs.ucsb.edu:9000</value>
>> in mapred-site.xml:
>>    <name>mapred.job.tracker</name>
>>    <value>speed.cs.ucsb.edu:9001</value>
>> when I try to open:  http://speed.cs.ucsb.edu:50070/   I get the 404 Error.
>> Any ideas?
>>  Thank you,
>>     Maha
> -- 
> Harsh J
> www.harshj.com

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