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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/02/16 23:56:12 UTC

[jira] [Updated] (SPARK-5841) Memory leak in DiskBlockManager

     [ https://issues.apache.org/jira/browse/SPARK-5841?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-5841:
-----------------------------
    Assignee: Matt Whelan

> Memory leak in DiskBlockManager
> -------------------------------
>
>                 Key: SPARK-5841
>                 URL: https://issues.apache.org/jira/browse/SPARK-5841
>             Project: Spark
>          Issue Type: Bug
>          Components: Block Manager
>    Affects Versions: 1.2.1
>            Reporter: Matt Whelan
>            Assignee: Matt Whelan
>             Fix For: 1.3.0
>
>
> DiskBlockManager registers a Runtime shutdown hook, which creates a hard reference to the entire Driver ActorSystem.  If a long-running JVM repeatedly creates and destroys SparkContext instances, it leaks memory.  
> I suggest we deregister the shutdown hook if DiskBlockManager.stop is called.  It's redundant at that point.
> PR coming.
> See also http://mail-archives.apache.org/mod_mbox/spark-user/201501.mbox/%3CCA+kjH+w_DDTEBE9XB6NrPxLTUXD=NC_d-3ogxTUMk_5v-E0bLQ@mail.gmail.com%3E



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