[jira] [Updated] (LIVY-246) Support multiple Spark home in runtime

["Gyorgy Gal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LIVY-246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gyorgy Gal updated LIVY-246:
----------------------------
    Fix Version/s: 0.10.0
                       (was: 0.9.0)

This issue has been moved to the 0.10.0 release as part of a bulk update. If you feel this is moved out inappropriately, feel free to provide justification and reset the Fix Version to 0.9.0.

> Support multiple Spark home in runtime
> --------------------------------------
>
>                 Key: LIVY-246
>                 URL: https://issues.apache.org/jira/browse/LIVY-246
>             Project: Livy
>          Issue Type: Sub-task
>          Components: Server
>    Affects Versions: 0.3
>            Reporter: Saisai Shao
>            Assignee: Saisai Shao
>            Priority: Major
>             Fix For: 0.10.0
>
>
> Current {{SPARK_HOME}} is a global configuration for {{LivyServer}}, it will check the spark home as well as spark version using this configuration when {{LivyServer}} is started. This limits the usage scenario of Livy. Since current Livy could support different Spark in one assembly, but switching to different Spark still requires stopping {{LivyServer}}, modify {{SPARK_HOME}} and restart. It would be better to support different Sparks in the runtime with session based, so user could switch different Sparks without needing to stop {{LivyServer}}, also it is useful for user who wants to operate with different Sparks.
> So here propose to move {{SPARK_HOME}} from global configuration to session based configuration.



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