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From "Andrew Sherman (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-19392) unsynchronized index causes DataInputByteBuffer$Buffer.read hangs
Date Fri, 22 Jun 2018 22:00:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-19392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Sherman reassigned HIVE-19392:
-------------------------------------

    Assignee:     (was: Andrew Sherman)

> unsynchronized index causes DataInputByteBuffer$Buffer.read hangs
> -----------------------------------------------------------------
>
>                 Key: HIVE-19392
>                 URL: https://issues.apache.org/jira/browse/HIVE-19392
>             Project: Hive
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.0.0
>            Reporter: John Doe
>            Priority: Minor
>
> In DataInputByteBuffer$Buffer class, the fields bidx and buffers, etc are unsynchronized
when used in read() and reset() function. In certain circumstances, e.g., the reset() is invoked
in a loop, the unsynchronized bidx and buffers can trigger a concurrency bug.
> This bug also shows in [Hadoop-15429|https://issues.apache.org/jira/browse/HADOOP-15429].



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