Mailing-List: contact common-dev-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: common-dev@hadoop.apache.org
Received-SPF: pass (athena.apache.org: domain of jaybooth@gmail.com designates
 209.85.216.198 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        b=v739csibhJtXXXG3SSzuT7VFJcwM32mZThV78fSmNEU+nVl+lLb5m8jFZc62d/L2ZG
         M+9dgwdZquS2cw8vMokgyaAXaeThsusHPYpFgtM/YvliWUFqr21zwCytpi2mXj1hjDbi
         dum3sGc1kZDLtYxs3/Pkaki/lNOC+twL7eW3k=
MIME-Version: 1.0
In-Reply-To: <54de02ae0910220711q20339cd6n9c468c3e036bf518@mail.gmail.com>
References: <456205240.23624@bjtu.edu.cn>
	 <54de02ae0910220711q20339cd6n9c468c3e036bf518@mail.gmail.com>
Date: Thu, 22 Oct 2009 10:21:55 -0400
Message-ID: <54dc3c50910220721u4c3cba7fxfe7f76f87c0fbadf@mail.gmail.com>
Subject: Re: How to develop webapps of hadoop?
From: Jay Booth <jaybooth@gmail.com>
To: common-dev@hadoop.apache.org
Content-Type: multipart/alternative; boundary=0016e64ccd7442f960047686d114

--0016e64ccd7442f960047686d114
Content-Type: text/plain; charset=ISO-8859-1

Seems like better webapps could be developed independently of Cloudera
desktop, people won't necessarily have the GUI installed everywhere, or at
all..

Zhiyuan, the hadoop webapps are run out of an embedded jetty instance that's
started by NameNode, DataNode, JobTracker and TaskTracker at startup time --
the daemon starts a jetty httpserver with the given WEB-INF directory and
configures it at runtime.  struts 2.0 is probably a bit heavyweight, maybe
you could ask around as far as what kinds of features people would like to
see, or suggest a few, and get an idea of what to build?  Maybe something
simple to start?

On Thu, Oct 22, 2009 at 10:11 AM, Ashutosh Chauhan <
ashutosh.chauhan@gmail.com> wrote:

> You might want to look at this first: http://www.cloudera.com/desktop
>
> Ashutosh
>
> On Thu, Oct 22, 2009 at 06:06, vsmingren <07281007@bjtu.edu.cn> wrote:
>
> > Dear friends:
> >
> >        I'm a student of the Bjtu university in China.
> >
> >        I have learned Hadoop for some days. I find that the webapps of
> > Hadoop,
> > such as hdfs webapps(http://localhost:50070), are not easy to use and
> > their functions are so few.
> >
> >        I want develop some new webapps base on Web 2.0, making it easier
> to
> > interact and more flexible and having more functions.
> >
> >        I'm familiar with Java Jsp Struts2.0 Spring and so on. I am
> > confident
> > to complete it. But now I meet some problem.
> >
> >        Because I am always using Tomcat as Web Server, I don't know where
> > the
> > hadoop server is located.
> >        1. I modified the file(hadoop/webapps/hdfs/WEB-INF/web.xml) and
> add
> > class to hadoop-0.19.2-core.jar, but it doesn't work.
> >        2. I modified index.html. But when I input
> http://localhost:50070into
> > browse address, it show the original page.
> >
> >        I really don't how to begin. Can you help me?
> >        1. What should I learn?
> >        2. How to develop these webapps?
> >        3. I'll appreciate it if you tell how to develop these webapps
> with
> > struts 2.0?
> >
> >        I'm looking forward to your reply.
> >        Thank you very much.
> >
> > Yours
> >
> > Zhiyuan Man
> >
> >
>

--0016e64ccd7442f960047686d114--