[jira] Resolved: (AMQ-3140) Lost messages when scheduling messages concurrently

["Timothy Bish (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMQ-3140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish resolved AMQ-3140.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 5.5.0

Confirmed the problem, Patches applied, thanks!

> Lost messages when scheduling messages concurrently
> ---------------------------------------------------
>
>                 Key: AMQ-3140
>                 URL: https://issues.apache.org/jira/browse/AMQ-3140
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.4.2
>            Reporter: Swen Moczarski
>            Assignee: Timothy Bish
>             Fix For: 5.5.0
>
>         Attachments: AMQ3140.patch, AMQ3140Test.patch
>
>
> We observed some problems with the scheduler component. One issue is, that the kaha db files from the scheduler won't be removed. On further investigation I found a potential cause which could be exposed by a test. When messages are send concurrently delayed by the scheduler, messages will be lost. It seems that the schedule method on JobSchedulerImpl should be synchronized.

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