[logback-dev] [JIRA] Updates for LOGBACK-1674: Nested Appenders within AsyncAppender no longer work

[QOS.CH (JIRA)]

logback / LOGBACK-1674 [Open]
Nested Appenders within AsyncAppender no longer work

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Here's what changed in this issue in the last few minutes.
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https://jira.qos.ch/browse/LOGBACK-1674

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 Issue created
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Luke Stephenson created this issue on 07/Sep/22 2:57 PM
Summary:              Nested Appenders within AsyncAppender no longer work
Issue Type:           Bug
Affects Versions:     1.3.0, 1.4.0
Assignee:             Logback dev list
Created:              07/Sep/22 2:57 PM
Priority:             Major
Reporter:             Luke Stephenson
Description:
  Previously in older versions of logback the following was valid:
  
   
  
   
  {code:java}
  <configuration>
      <appender name="STDOUT-ASYNC" class="ch.qos.logback.classic.AsyncAppender">
          <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
              <encoder class="com.foo.SomeEncoder"/>
          </appender>
      </appender>    
      <root level="${ROOT_LOG_LEVEL:-info}">
          <appender-ref ref="STDOUT-ASYNC"/>
      </root>
  </configuration>
  {code}
  With logback 1.3.0 and 1.4.0 this fails with:
  {code:java}
  22:49:33,671 |-INFO in ch.qos.logback.core.model.processor.AppenderModelHandler - Processing appender named [STDOUT-ASYNC]
  22:49:33,671 |-INFO in ch.qos.logback.core.model.processor.AppenderModelHandler - About to instantiate appender of type [ch.qos.logback.classic.AsyncAppender]
  22:49:33,673 |-WARN in ch.qos.logback.core.model.processor.AppenderModelHandler - Appender named [STDOUT] not referenced. Skipping further processing.
  22:49:33,673 |-ERROR in ch.qos.logback.classic.AsyncAppender[STDOUT-ASYNC] - No attached appenders found.
  {code}
  To get it to work, I have to switch to the "appender-ref" style.
  {code:java}
  <configuration>
      <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
          <encoder class="com.zendesk.logging.JsonLogEncoder"/>
      </appender>
  
      <appender name="STDOUT-ASYNC" class="ch.qos.logback.classic.AsyncAppender">
          <appender-ref ref="STDOUT" />
      </appender>
  
      <root level="${ROOT_LOG_LEVEL:-info}">
          <appender-ref ref="STDOUT-ASYNC"/>
      </root>
  </configuration>
  {code}
  Not sure if this an intentional change to drop support for the format we used earlier, or a bug.
  
  Thanks
  
   


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