[logback-dev] [JIRA] (LOGBACK-1495) logevent can not be written into file when config file is loading

QOS.CH (JIRA) noreply-jira at qos.ch
Mon Jan 6 06:15:00 CET 2020

liuzhiqiang created LOGBACK-1495:

             Summary: logevent can not be written into file when config file is loading
                 Key: LOGBACK-1495
                 URL: https://jira.qos.ch/browse/LOGBACK-1495
             Project: logback
          Issue Type: Bug
          Components: logback-core
    Affects Versions: 1.2.3
         Environment: slf4j-api-1.7.29


            Reporter: liuzhiqiang
            Assignee: Logback dev list
            Priority: Critical

first,use jdb command to start the log program

then set some breakpoints as follows:

stop at ch.qos.logback.core.spi.AppenderAttachableImpl:50

stop at ch.qos.logback.core.spi.AppenderAttachableImpl:51

stop at ch.qos.logback.core.joran.spi.ConfigurationWatchList:83

stop at ch.qos.logback.core.spi.AppenderAttachableImpl:109




hit breakpoint ch.qos.logback.core.spi.AppenderAttachableImpl:50

find main thread id,  suspend 【main thread id】, execute cont command



hit breakpoint  ch.qos.logback.core.joran.spi.ConfigurationWatchList:83

now ,let us change our config file ,save it, 

go back to debug tool interface,execute cont command


hit breakpoint ch.qos.logback.core.spi.AppenderAttachableImpl:109

execute next command, appenderList will be cleared, suspend current thread id,

and  resume main thread,   then let us execute cont command


hit breakpoint  ch.qos.logback.core.spi.AppenderAttachableImpl:51

step debug from here, u can find something as follows:


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