[jira] [Closed] (ARTEMIS-2926) Scheduled task executions are skipped randomly

["Clebert Suconic (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARTEMIS-2926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clebert Suconic closed ARTEMIS-2926.
------------------------------------
    Fix Version/s: 2.16.0
       Resolution: Fixed

> Scheduled task executions are skipped randomly
> ----------------------------------------------
>
>                 Key: ARTEMIS-2926
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-2926
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 2.13.0
>            Reporter: Apache Dev
>            Assignee: Francesco Nigro
>            Priority: Major
>             Fix For: 2.16.0
>
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> Scheduled tasks extending {{ActiveMQScheduledComponent}} could randomly skip an execution, logging:
> {code}
> Execution ignored due to too many simultaneous executions, probably a previous delayed execution
> {code}
> The problem is in the "ActiveMQScheduledComponent#runForExecutor" Runnable.
> Times to be compared ({{currentTimeMillis()}} and {{lastTime}}) are taken inside the runnable execution itself. So, depending on relative execution times, it could happen that the difference is less than the given period (e.g. 1 ms), resulting in a skipped execution.



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