Triggering spark jobs with REST

问题

I have been of late trying out apache spark. My question is more specific to trigger spark jobs. Here I had posted question on understanding spark jobs. After getting dirty on jobs I moved on to my requirement.

I have a REST end point where I expose API to trigger Jobs, I have used Spring4.0 for Rest Implementation. Now going ahead I thought of implementing Jobs as Service in Spring where I would submit Job programmatically, meaning when the endpoint is triggered, with given parameters I would trigger the job. I have now few design options.

Similar to the below written job, I need to maintain several Jobs called by a Abstract Class may be JobScheduler .

 /*Can this Code be abstracted from the application and written as 
  as a seperate job. Because my understanding is that the 
 Application code itself has to have the addJars embedded 
 which internally  sparkContext takes care.*/

 SparkConf sparkConf = new SparkConf().setAppName("MyApp").setJars(
 new String[] { "/path/to/jar/submit/cluster" })
 .setMaster("/url/of/master/node");
  sparkConf.setSparkHome("/path/to/spark/");

        sparkConf.set("spark.scheduler.mode", "FAIR");
        JavaSparkContext sc = new JavaSparkContext(sparkConf);
        sc.setLocalProperty("spark.scheduler.pool", "test");

    // Application with Algorithm , transformations

extending above point have multiple versions of jobs handled by service.
Or else use an Spark Job Server to do this.

Firstly, I would like to know what is the best solution in this case, execution wise and also scaling wise.

Note : I am using a standalone cluster from spark. kindly help.

回答1:

Just use the Spark JobServer https://github.com/spark-jobserver/spark-jobserver

There are a lot of things to consider with making a service, and the Spark JobServer has most of them covered already. If you find things that aren't good enough, it should be easy to make a request and add code to their system rather than reinventing it from scratch

回答2:

It turns out Spark has a hidden REST API to submit a job, check status and kill.

Check out full example here: http://arturmkrtchyan.com/apache-spark-hidden-rest-api

回答3:

Livy is an open source REST interface for interacting with Apache Spark from anywhere. It supports executing snippets of code or programs in a Spark context that runs locally or in Apache Hadoop YARN.