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