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From "Jimmy Xiang (JIRA)" <>
Subject [jira] [Commented] (HIVE-12538) After set spark related config, SparkSession never get reused
Date Wed, 09 Dec 2015 02:30:10 GMT


Jimmy Xiang commented on HIVE-12538:

I agree. I am wondering if we need to support running just one query at a time for a session.
If so, the fix could be different. If we need to support multiple concurrent queries in one
session, we need to come up a different fix. There may be clients already running several
queries with the same session.

> After set spark related config, SparkSession never get reused
> -------------------------------------------------------------
>                 Key: HIVE-12538
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>    Affects Versions: 1.3.0
>            Reporter: Nemon Lou
>            Assignee: Nemon Lou
>         Attachments: HIVE-12538.1.patch, HIVE-12538.2.patch, HIVE-12538.3.patch, HIVE-12538.4.patch,
> Hive on Spark yarn-cluster mode.
> After setting "set spark.yarn.queue=QueueA;" ,
> run the query "select count(*) from test"  3 times and you will find  3 different yarn
> Two of the yarn applications in FINISHED & SUCCEEDED state,and one in RUNNING &
UNDEFINED state waiting for next work.
> And if you submit one more "select count(*) from test" ,the third one will be in FINISHED
& SUCCEEDED state and a new yarn application will start up.

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