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https://issues.apache.org/jira/browse/KAFKA-7237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stanislav Kozlovski reassigned KAFKA-7237:
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Assignee: Stanislav Kozlovski
> Add explicit fatal marker to fatal error messages
> -------------------------------------------------
>
> Key: KAFKA-7237
> URL: https://issues.apache.org/jira/browse/KAFKA-7237
> Project: Kafka
> Issue Type: Bug
> Components: core
> Reporter: Rajini Sivaram
> Assignee: Stanislav Kozlovski
> Priority: Minor
>
> We currently use FATAL markers for fatal error messages in core. But only
> logback supports markers out-of-the-box and log4j simply logs these as ERROR
> messages, ignoring the marker. We should perhaps include a String marker
> within these messages to make it easier to identify fatal messages in logs.
> From https://www.slf4j.org/faq.html:
> {quote}
> While markers are part of the SLF4J API, only logback supports markers off
> the shelf. For example, if you add the {{%marker}}conversion word to its
> pattern, logback's {{PatternLayout}} will add marker data to its output.
> Marker data can be used to [filter
> messages|http://logback.qos.ch/manual/filters.html] or even
> [trigger|http://logback.qos.ch/manual/appenders.html#OnMarkerEvaluator] an
> outgoing email [at the end of an individual
> transaction|http://logback.qos.ch/recipes/emailPerTransaction.html].
> In combination with logging frameworks such as log4j and java.util.logging
> which do not support markers, marker data will be silently ignored.
> {quote}
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