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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-15430) Access ListAccumulator's value could possibly cause java.util.ConcurrentModificationException
Date Fri, 20 May 2016 04:23:13 GMT

     [ https://issues.apache.org/jira/browse/SPARK-15430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-15430:
------------------------------------

    Assignee:     (was: Apache Spark)

> Access ListAccumulator's value could possibly cause java.util.ConcurrentModificationException
> ---------------------------------------------------------------------------------------------
>
>                 Key: SPARK-15430
>                 URL: https://issues.apache.org/jira/browse/SPARK-15430
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Liang-Chi Hsieh
>
> In ListAccumulator we create an unmodifiable view for underlying list. However, it doesn't
prevent the underlying to be modified further. So as we access the unmodifiable list, the
underlying list can be modified in the same time. It could cause java.util.ConcurrentModificationException.
We should fix it.



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