[logback-dev] [JIRA] (LOGBACK-1354) Errors cause AsyncAppender's worker thread to terminate causing halting

[QOS.CH (JIRA)]

Greg created LOGBACK-1354:
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             Summary: Errors cause AsyncAppender's worker thread to terminate causing halting
                 Key: LOGBACK-1354
                 URL: https://jira.qos.ch/browse/LOGBACK-1354
             Project: logback
          Issue Type: Bug
          Components: logback-core
    Affects Versions: 1.2.3
         Environment: (Not environment specific.)
            Reporter: Greg
            Assignee: Logback dev list


The AsyncAppender worker thread, defined in AsyncAppenderBase, consumes log entries from a bounded blocking queue. Should this worker thread terminate prematurely for any reason and the AsyncAppender be configured as blocking (neverBlock=false) the queue fills and any calls to log block indefinitely.

The worker thread is currently indirectly tolerant of exceptions thrown by an appender, due to the exception handling in AppenderBase.doAppend, but this exception handling does not cover other Throwable types.

Ideally, the AsyncAppender worker thread should do everything possible to stay alive while the appender is started.



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