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https://issues.apache.org/jira/browse/CAMEL-19724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Otavio Rodolfo Piske resolved CAMEL-19724.
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Resolution: Fixed
This should be fixed with the linked PR. Should be relatively safe and
affecting (mostly) test code .
> camel-core: core may lose log messages under concurrent initialization
> ----------------------------------------------------------------------
>
> Key: CAMEL-19724
> URL: https://issues.apache.org/jira/browse/CAMEL-19724
> Project: Camel
> Issue Type: Bug
> Components: came-core
> Affects Versions: 4.0-RC2
> Reporter: Otavio Rodolfo Piske
> Assignee: Otavio Rodolfo Piske
> Priority: Major
>
> When a system performs concurrent initialization of Camel, there's a good
> chance that it may lose messages due to [log
> substitution|https://www.slf4j.org/codes.html#substituteLogger] behavior.
> This is more likely to happen in tests (such as camel-quartz ones - highly
> concurrent) than in actual production code (though, it's still possible for
> some applications).
> Nonetheless, this can cause a lot of confusion during debugging, as some log
> messages may not be present on the logs. The ones likely to be dropped on the
> logs are the ones called during build/initialization.
> I think we can do 2 things to reduce the incidence of this problem:
> - Delay the logger initialization in a few key places
> - Add a note in the documentation, that the logging framework should be
> properly initialized before running Camel in highly concurrent scenarios
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