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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-8843) Release RDD cache when Hive query is done [Spark Branch]
Date Wed, 17 Dec 2014 16:23:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-8843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jimmy Xiang updated HIVE-8843:
------------------------------
    Attachment: HIVE-8843.3-spark.patch

Attached v3 again to re-run the tests.

> Release RDD cache when Hive query is done [Spark Branch]
> --------------------------------------------------------
>
>                 Key: HIVE-8843
>                 URL: https://issues.apache.org/jira/browse/HIVE-8843
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Jimmy Xiang
>         Attachments: HIVE-8843.1-spark.patch, HIVE-8843.2-spark.patch, HIVE-8843.3-spark.patch,
HIVE-8843.3-spark.patch
>
>
> In some multi-inser cases, RDD.cache() is called to improve performance. RDD is SparkContext
specific, but the caching is useful only for the query. Thus, once the query is executed,
we need to release the cache used by calling RDD.uncache().



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