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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 03:50:13 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

> 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
>
>
> 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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