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From "qiangwang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3857) HiveHistoryViewer concurrency problem
Date Fri, 04 Jan 2013 09:38:14 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

qiangwang updated HIVE-3857:
----------------------------

    Status: Patch Available  (was: Open)
    
> HiveHistoryViewer concurrency problem
> -------------------------------------
>
>                 Key: HIVE-3857
>                 URL: https://issues.apache.org/jira/browse/HIVE-3857
>             Project: Hive
>          Issue Type: Bug
>          Components: Logging
>            Reporter: qiangwang
>            Priority: Minor
>         Attachments: HiveHistory.patch
>
>
> new HiveHistoryViewer() throws ConcurrentModificationException when called concurrently
by several threads.
> According to the stacktrace, HiveHistory.parseLine use "private static Map<String,
String> parseBuffer" to store parsed data and this finally caused the exception.
> I don't know why a static buffer rather than a local buffer is used!

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