Re: Zeppelin first time user: some questions.

[Renato Perini <re...@gmail.com>]

Sorry, I meant "with Zeppelin".
Basically I want to write Java Spark Code in the Zeppelin notebook.

Thank you.

Il 28/09/2015 09:05, Vinay Shukla ha scritto:
> Spark supports Scala, Java, Python & R.
> Zeppelin supports the first 3, R support is in progress.
>
> On Monday, September 28, 2015, Eugene <blackorangebox@gmail.com 
> <ma...@gmail.com>> wrote:
>
>     Regarding Q2, it's not really possible currently.
>
>     See this feature request:
>     https://issues.apache.org/jira/browse/ZEPPELIN-320
>
>     2015-09-28 4:08 GMT+04:00 Renato Perini <renato.perini@gmail.com
>     <javascript:_e(%7B%7D,'cvml','renato.perini@gmail.com');>>:
>
>         Hello!
>         I want to evaluate Apache Zeppelin for some experiments in
>         analytics at my company.
>         Currently we have a custom setup for Apache Spark on Amazon
>         EC2. This small cluster is used for two purposes:
>         1) Routing logs coming from an Apache Flume instance and
>         writing them to an Apache Cassandra database through Spark
>         Streaming.
>         2) Analyzing written logs on Cassandra to produce some
>         (simple) stats for the data stored on Cassandra (producing
>         ad-hoc tables with processed results).
>
>         I have been asked to produce a simple web app demo to show the
>         results of the computations stored on Cassandra and I have
>         thought Zeppelin can facilitate my homeworks.
>         Now I have some questions, before I even attempt to install it:
>
>         1) Can I use Java as the programming language for interacting
>         with Apache Spark? Or I'm constrained with Scala / Python?
>         2) Can I export images, graphs, etc. to directly use them into
>         a separate web app? Would it be difficult? Zeppelin can update
>         those images interactively as data updates on the tables and
>         without user intervention?
>         3) Can I read data directly from Cassandra without any further
>         processing? I have setup some tables that contains already
>         processed data, so the idea is to read those tables directly
>         for showing some graphs (maybe using loading data through
>         SparkSQL).
>
>         Thank you and keep up the good work.
>
>         Renato Perini.
>
>
>
>
>     -- 
>
>
>     Best regards,
>     Eugene.
>