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https://issues.apache.org/jira/browse/DAFFODIL-2510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334255#comment-17334255
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Mike Beckerle commented on DAFFODIL-2510:
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Related Logging/Logger tickets
* DAFFODIL-1047,
* DAFFODIL-905,
* DAFFODIL-1974,
* DAFFODIL-747,
* DAFFODIL-2213
> Thread Safety: Improve Logger/Logging
> --------------------------------------
>
> Key: DAFFODIL-2510
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2510
> Project: Daffodil
> Issue Type: Bug
> Components: Back End, CLI, Front End, Libraries, Middle
> "End", TDML Runner
> Affects Versions: 3.0.0
> Reporter: Mike Beckerle
> Priority: Major
>
> Every object that mixes in the Logging trait gets its own mutable vars for
> logWriter and logLevel, and if not set, shares a single global state in the
> LoggingDefaults object.
> This is not thread safe. At minimum LoggingDefaults should be a ThreadLocal.
> Furthermore, those objects don't need independent ability to specify a unique
> logger or logging level. They should be sharing a logger supplied by the
> application.
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