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From Gabriel Wang <gabriel.wang...@gmail.com>
Subject Re: how to use cluster sparkSession like localSession
Date Fri, 02 Nov 2018 08:33:11 GMT
Agree. Spark is not designed for embedding in business applications(those
traditional J2EE) for real-time interaction.

Thanks,
Gabriel



On Fri, Nov 2, 2018 at 2:36 PM 张万新 <kevinzwx1992@gmail.com> wrote:

> I think you should investigate apache zeppelin and livy
> 崔苗(数据与人工智能产品开发部) <0049003208@znv.com>于2018年11月2日
周五11:01写道:
>
>>
>> Hi,
>> we want to execute spark code with out submit application.jar,like this
>> code:
>>
>> public static void main(String args[]) throws Exception{
>>         SparkSession spark = SparkSession
>>                 .builder()
>>                 .master("local[*]")
>>                 .appName("spark test")
>>                 .getOrCreate();
>>
>>         Dataset<Row> testData =
>> spark.read().csv(".\\src\\main\\java\\Resources\\no_schema_iris.scv");
>>         testData.printSchema();
>>         testData.show();
>>     }
>>
>> the above code can work well with idea , do not need to generate jar file
>> and submit , but if we replace master("local[*]") with master("yarn") ,
>> it can't work , so is there a way to use cluster sparkSession like local
>> sparkSession ?  we need to dynamically execute spark code in web server
>> according to the different request ,  such as filter request will call
>> dataset.filter() , so there is no application.jar to submit .
>>
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