Thanks. I will check if I can use Play. - Girish
________________________________ From: Mohan Radhakrishnan <radhakrishnan.mo...@gmail.com> To: user@hadoop.apache.org Sent: Saturday, April 19, 2014 7:27 AM Subject: Re: calling mapreduce from webservice Play framework is reactive and uses push channels. It may be useful here if the UI has to be asynchronous and reactive. Mohan On Sat, Apr 19, 2014 at 4:37 AM, Shahab Yunus <shahab.yu...@gmail.com> wrote: As far as I know there is no API to kick of M/R jobs. There is for M/R v2, a REST API to get status of jobs: http://hadoop.apache.org/docs/r2.3.0/hadoop-yarn/hadoop-yarn-site/MapredAppMasterRest.html#Mapreduce_Application_Master_Info_API > > >I would say that you have invoke M/R jobs in your middle tier or back-end, you >have to implement a custom solution i.e. invoking the M/R jobs in standard way >and then monitoring the status of the job and then update the UI >asynchronously depending on which UI framework or web service implementation >(e.g. WS-Addressing) you are using. > > >Regards, >Shahab > > > >On Fri, Apr 18, 2014 at 3:11 PM, girish hilage <girish_hil...@yahoo.com> wrote: > >Yes. I intend to run the jobs asynchronously and show the status of the user >submitted job as "running/completed" etc. and user will be able to submit new >jobs simultaneously. I have not checked PigLipStick though. >> >>Regards, >>Girish >> >> >> >>On Saturday, April 19, 2014 12:34 AM, Shahab Yunus <shahab.yu...@gmail.com> >>wrote: >> >>Question: M/R jobs are supposed to run for a long time. They are essentially >>batch processes. Do you plan to keep the Web UI blocked for that while? Or >>are you looking for asynchronous invocation of the M/R job? Or are you >>thinking about building sort of an Admin UI (e.g. PigLipstick) What exactly >>is your requirement? >> >> >>Regards, >>Shahab >> >> >> >>On Fri, Apr 18, 2014 at 3:01 PM, girish hilage <girish_hil...@yahoo.com> >>wrote: >> >>Hi, >>> >>> This is just to check with you, if it is possible to call MR jobs from >>>Java Webservices. >>> If yes, then could you please help me by pointing to some resouces/docs. >>> >>> Actually, what I intend to do is create a Web UI with some functionality >>>which would call MR jobs and present the result to the user in browser. >>> >>> >>> >>>Regards, >>>Girish >>> >> >> >> >
