[jira] [Updated] (SPARK-7170) Allow to add register SparkListener specified in SparkConf

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-7170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-7170:
-----------------------------
             Priority: Minor  (was: Major)
    Affects Version/s:     (was: 1.4.0)

> Allow to add register SparkListener specified in SparkConf
> ----------------------------------------------------------
>
>                 Key: SPARK-7170
>                 URL: https://issues.apache.org/jira/browse/SPARK-7170
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 1.3.1
>            Reporter: Jacek Lewandowski
>            Priority: Minor
>
> Currently if the user wants to add a SparkListener to SparkContext, the listener has to be explicitly instantiated and added by calling {{SparkContext.addSparkListener}}. 
> h5.Problem
> This is actually not a problem but rather an inconvenience in some cases. Suppose we want to provide a default listener or listeners, common to all the applications in some environment or we want to add a listener to the existing applications, which are complied or we do not want to change their code. 
> h5.Proposed solution
> We could just specify {{spark.driver.sparkListeners=a.b.c.SomeListener,...}} and the referenced class(es) would be instantiated and added as listeners automatically when {{SparkContext}} is created. The proposed change does not change the API, it just adds a handler for one more property in Spark configuration.



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