Best to upgrade to 2.10 if you’re not on it yet. Cheers!
(Shameless plug) Every java main() method deserves http://picocli.info > On Dec 15, 2017, at 8:45, Benjamin Jaton <benjamin.ja...@gmail.com> wrote: > > Oh interesting. Well this one appender is not async but it is multi > threaded, so I think that explains it. > Useful to know about 2031 though. > > Thanks > Benjamin > >> On Thu, Dec 14, 2017 at 2:54 PM, Remko Popma <remko.po...@gmail.com> wrote: >> >> Are you using Log4j 2.10? >> The reason I’m asking is that the 2.10 release contains a fix for >> https://issues.apache.org/jira/browse/LOG4J2-2031. >> >> Prior to 2.10, there was a possibility that log events ended up out of >> order in the log when you’re using async loggers or async appender and the >> appender could not keep up with the logging rate. Once the queue is full, >> previous versions of Log4j2 would bypass the queue and log directly to the >> appender. >> >> From 2.10, this only happens if Log4j2 determines there’s a risk for >> deadlock, otherwise the thread will enqueue the log event (possibly >> blocking until space is available in the queue). >> >> Remko >> >> (Shameless plug) Every java main() method deserves http://picocli.info >> >>> On Dec 15, 2017, at 7:22, Ralph Goers <ralph.go...@dslextreme.com> >> wrote: >>> >>> In a multi-threaded application it is entirely possible that log entries >> might be appear to be out of order. This is because the LogEvent will >> populate the timestamp field but then another thread might get control, >> generate its log event, and then pass it to the appender before the first >> thread got a chance to pass the event to the appender. Are you seeing log >> entries that are out of order in the same thread? That shouldn’t happen. >>> >>> Ralph >>> >>>> On Dec 14, 2017, at 3:09 PM, Benjamin Jaton <benjamin.ja...@gmail.com> >> wrote: >>>> >>>> Hello, >>>> >>>> I am seeing logs that are not in order in the log file, it this expected >>>> when using a RollingFile appender? >>>> >>>> "appenders" : { >>>> "appender" : [ { >>>> "type" : "RollingFile", >>>> "name" : "ServerAppender", >>>> "PatternLayout" : { >>>> "pattern" : "%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p %c{1}:%L - %m%n" >>>> }, >>>> "fileName" : "server.log", >>>> "filePattern" : "server-%d{yyyy-MM-dd_HH-mm-ss}.log.zip", >>>> "SizeBasedTriggeringPolicy" : { >>>> "size" : "100MB" >>>> }, >>>> "bufferedIO" : "true", >>>> "bufferSize" : "8192", >>>> "immediateFlush" : "true", >>>> "DefaultRolloverStrategy" : (...) >>>> } >>>> >>>> Thanks >>>> Benjamin >>> >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org >>> For additional commands, e-mail: log4j-user-h...@logging.apache.org >>> >> --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
