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From HARSH TAKKAR <takkarha...@gmail.com>
Subject Re: Using Java spring injection with spark
Date Tue, 02 Feb 2016 06:28:23 GMT
Hi Sambit

My app is basically a cron which checks on the db, if there is a job that
is scheduled and needs to be executed, and  it submits the job to spark
using spark java api.This app is written with spring framework as core.

Each job has set of task which needs to be executed in an order.
> we have implemented a chain of responsibility pattern to do so,and we
persist a status of snapshot step on mysql after persistence of the step
result in csv file, So that if job breaks in between we know which file to
pick and start processing further.

> I basically wanted to inject the snapshot steps with jdbc layer and other
dependency through spring auto-wiring.

will using spring in this use case adversely affect the performance and as
you mentioned will it cause serialization errors ?


On Tue, Feb 2, 2016 at 1:16 AM Sambit Tripathy (RBEI/EDS1) <
Sambit.Tripathy@in.bosch.com> wrote:

>
>
> 1.      It depends on what you want to do. Don’t worry about singleton
> and wiring the beans as it is pretty much taken care by the Spark Framework
> itself. Infact doing so, you will run into issues like serialization errors.
>
>
>
> 2.      You can write your code using Scala/ Python using the spark shell
> or a notebook like Ipython, zeppelin  or if you have written a application
> using Scala/Java using the Spark API you can create a jar and run it using
> spark-submit.
>
> *From:* HARSH TAKKAR [mailto:takkarharsh@gmail.com]
> *Sent:* Monday, February 01, 2016 10:00 AM
> *To:* user@spark.apache.org
> *Subject:* Re: Using Java spring injection with spark
>
>
>
> Hi
>
> Please can anyone reply on this.
>
>
>
> On Mon, 1 Feb 2016, 4:28 p.m. HARSH TAKKAR <takkarharsh@gmail.com> wrote:
>
> Hi
>
> I am new to apache spark and big data analytics, before starting to code
> on spark data frames and rdd, i just wanted to confirm following
>
> 1. Can we create an implementation of java.api.Function as a singleton
> bean using the spring frameworks and, can it be injected using autowiring
> to other classes.
>
> 2. what is the best way to submit jobs to spark , using the api or using
> the shell script?
>
> Looking forward for your help,
>
> Kind Regards
>
> Harsh
>
>

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