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https://issues.apache.org/jira/browse/AMQ-6432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15506902#comment-15506902
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Christopher L. Shannon commented on AMQ-6432:
---------------------------------------------

Time shouldn't have anything to do with it because a Location in the journal is 
essentially just 2 pieces of information, the file and the offset and time 
isn't involved.  Since this issue has happened a few more times can you enable 
debug logging for the MessageDatabase class to try and capture the stack trace?

> Improve 'Failed to load next journal location: null' warning output
> -------------------------------------------------------------------
>
>                 Key: AMQ-6432
>                 URL: https://issues.apache.org/jira/browse/AMQ-6432
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.14.0
>            Reporter: Martin Lichtin
>
> Seeing
> {noformat}
> 2016-09-19 15:11:30,270 | WARN  | ournal Checkpoint Worker | MessageDatabase  
>                 | 
>    emq.store.kahadb.MessageDatabase 2104 | 102 - 
> org.apache.activemq.activemq-osgi - 5.14.0 | 
>    Failed to load next journal location: null
> {noformat}
> it'd be great to improve the output in such a case (Journal Checkpoint Worker 
> ).
> Why not show the exception stack (it seems weird to only show the stack when 
> debug level is enabled).



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