You can use the RPC to access namenode and since its informations.
On Wed, Jan 11, 2012 at 3:32 PM, Michael Lok <fula...@gmail.com> wrote: > Hi Franck, > > Thanks for the info. However, I'm looking at decoupling this app from the > embedded Jetty in Hadoop. Ideally, it should be deployed in a separate > server as the NameNode. Is this possible? > > > > > > On Wed, Jan 11, 2012 at 3:23 PM, Franck Besnard <besn0...@yahoo.com>wrote: > >> Hello >> Yes this is quite trivial and for example ibm did that in their big >> insights flavor of hadoop >> The hadoop alrzady has quite a lot of instrumentation regarding >> monitoring and you can extend the embedded jetty to add more features. >> Ideally this webapp should nit be bundled within the nodes but that s the >> way it is >> Cheers >> Franck >> >> >> Envoyé à partir de Yahoo! Mail (sur Android) >> >> ------------------------------ >> * From: * Michael Lok <fula...@gmail.com>; >> * To: * <hdfs-user@hadoop.apache.org>; >> * Subject: * Custom web app >> * Sent: * Wed, Jan 11, 2012 7:07:39 AM >> >> Hi folks, >> >> I was wondering if it's possible to develop a custom front end which >> allows monitoring/management of jobs/tasks and hdfs. From what i can >> see from the built in webapp, all JSPs retrieve the relevant >> NameNode/TaskTracker objects from the application instance; which is >> set during NameNode creation. Was wondering if it's possible to >> connect to a remote NameNode from an external server and application >> using Hadoop's API classes. >> >> >> Thanks. >> > >
