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Posted to issues@livy.apache.org by "Hong Shen (JIRA)" <ji...@apache.org> on 2017/10/19 02:27:00 UTC
[jira] [Commented] (LIVY-395) Run statements in parallel in a
session
[ https://issues.apache.org/jira/browse/LIVY-395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16210482#comment-16210482 ]
Hong Shen commented on LIVY-395:
--------------------------------
We also need this feature in our cluster, think about that, if a app have to take a long time and large resource to init, after init, we have a lot of statement to run, it sounds good if we can run statements in parallel.
> Run statements in parallel in a session
> ---------------------------------------
>
> Key: LIVY-395
> URL: https://issues.apache.org/jira/browse/LIVY-395
> Project: Livy
> Issue Type: Bug
> Components: API
> Affects Versions: 0.3
> Reporter: kaushik ranjan
>
> Is there an option in Livy, similar to spark JobServer where we can run statements in an interactive session in parallel?
> Apache JobServer has a option to specify the number of requests which we want to run in parallel. Do we have something similar in Livy?
> Microsoft Azure HDI support team say - we can run as many statements in a session in parallel as are the number of cores in a headnode in the HDI cluster. But when we tested - it doesn't.
> Right now we see bad utilization of resources within a spark session (following interactive session model). Right now we have session per user model. I want to use the session for multiple users, but Livy's model of running only one statement at a time, is acting as a blocker for allowing multiple users to use the same session to run requests.
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