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Posted to common-dev@hadoop.apache.org by vsmingren <07...@bjtu.edu.cn> on 2009/10/22 12:06:11 UTC
How to develop webapps of hadoop?
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:50070 into
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
Re: How to develop webapps of hadoop?
Posted by Jay Booth <ja...@gmail.com>.
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 <07...@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
> >
> >
>
Re: How to develop webapps of hadoop?
Posted by Ashutosh Chauhan <as...@gmail.com>.
You might want to look at this first: http://www.cloudera.com/desktop
Ashutosh
On Thu, Oct 22, 2009 at 06:06, vsmingren <07...@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
>
>