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
>>
>>
>>
>>
>>
>

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