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Posted to dev@openjpa.apache.org by "Vikram Bhatia (JIRA)" <ji...@apache.org> on 2007/04/27 23:27:15 UTC

[jira] Commented: (OPENJPA-230) Handle guaranteed delivery of Data Cache events on normal JVM termination using TCPRemoteCommitProvider

    [ https://issues.apache.org/jira/browse/OPENJPA-230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12492398 ] 

Vikram Bhatia commented on OPENJPA-230:
---------------------------------------

Well I have though about it, but it fails the following scenario.

1. Four Threads running and eight Packets in queue. The four threads are busy sending packets.
3. In case, _keepRunning is set to false, four packets will still be left to synchronize as threads exit from while loop.

> Handle guaranteed delivery of Data Cache events on normal JVM termination using TCPRemoteCommitProvider
> -------------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-230
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-230
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 0.9.0, 0.9.6, 0.9.7
>            Reporter: Vikram Bhatia
>            Priority: Minor
>         Attachments: OPENJPA-230.patch, soln.diff
>
>
> When an application is commiting a transaction and then terminating, often not all events regarding Data Cache are dispatched by the TCPRemoteCommitProvider. It seems that the JVM on termination is not waiting until TCPRemoteCommitProvider has dispatched all events regarding Data Cache. In this way some cache synchronization is lost.

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