[jira] Closed: (OPENJPA-1421) Reduce lock contention in JDBCStoreManager

["Rick Curtis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OPENJPA-1421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Curtis closed OPENJPA-1421.
--------------------------------

    Resolution: Fixed

Committed changes to 1.2.x and 1.3.x. This problem does not exist on trunk.

> Reduce lock contention in JDBCStoreManager
> ------------------------------------------
>
>                 Key: OPENJPA-1421
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1421
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.2.2, 1.3.0
>            Reporter: Rick Curtis
>            Assignee: Rick Curtis
>             Fix For: 1.2.2, 1.3.0
>
>
> When testing on a high end machine, we found a bottleneck in calling JDBCStoreManager.getCacheMapFromQuerySQLCache(...). To fix the problem, had each caller will hold onto the cacheMap that is returned from getCacheMapFromQuerySQLCache(...) rather than call it multiple times.

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