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From James King <jakwebin...@gmail.com>
Subject Re: Writing Spark Streaming Programs
Date Thu, 19 Mar 2015 15:09:27 GMT
Many thanks Gerard, this is very helpful. Cheers!

On Thu, Mar 19, 2015 at 4:02 PM, Gerard Maas <gerard.maas@gmail.com> wrote:

> Try writing this Spark Streaming idiom in Java and you'll choose Scala
> soon enough:
>
> dstream.foreachRDD{rdd =>
>      rdd.foreachPartition( partition => ....)
> }
>
> When deciding between Java and Scala for Spark, IMHO Scala has the
> upperhand. If you're concerned with readability, have a look at the Scala
> coding style recently open sourced by DataBricks:
> https://github.com/databricks/scala-style-guide  (btw, I don't agree a
> good part of it, but recognize that it can keep the most complex Scala
> constructions out of your code)
>
>
>
> On Thu, Mar 19, 2015 at 3:50 PM, James King <jakwebinbox@gmail.com> wrote:
>
>> Hello All,
>>
>> I'm using Spark for streaming but I'm unclear one which implementation
>> language to use Java, Scala or Python.
>>
>> I don't know anything about Python, familiar with Scala and have been
>> doing Java for a long time.
>>
>> I think the above shouldn't influence my decision on which language to
>> use because I believe the tool should, fit the problem.
>>
>> In terms of performance Java and Scala are comparable. However Java is OO
>> and Scala is FP, no idea what Python is.
>>
>> If using Scala and not applying a consistent style of programming Scala
>> code can become unreadable, but I do like the fact it seems to be possible
>> to do so much work with so much less code, that's a strong selling point
>> for me. Also it could be that the type of programming done in Spark is best
>> implemented in Scala as FP language, not sure though.
>>
>> The question I would like your good help with is are there any other
>> considerations I need to think about when deciding this? are there any
>> recommendations you can make in regards to this?
>>
>> Regards
>> jk
>>
>>
>>
>>
>>
>>
>>
>

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