Thanks, I'll take a look at this suggestion! On Sun, Dec 11, 2016 at 1:56 PM, Remko Popma <remko.po...@gmail.com> wrote:
> One option is the SequenceNumber > <https://github.com/apache/logging-log4j2/blob/76d78fe9a4adecebd9805d051a1606b2ac70ccd0/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/SequenceNumberPatternConverter.java> > pattern converter %sn in PatternLayout > <https://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout>. > This uses a static counter, so if you need to keep separate track of > multiple appenders this may not be useful. > What you could do then is create a custom pattern converter plugin or > lookup plugin. > > On Sun, Dec 11, 2016 at 8:40 PM, Guy Marom <marom....@gmail.com> wrote: > >> Hello everyone, >> I want to count all the logging events into our metrics system >> (Prometheus). Our devs are using this to create alerts for Error/Fatal/Warn >> events. >> >> I gave up using filters because they catch all the events and not just >> the ones that are actually written to the logger. >> >> My current idea is to use a rewrite appender with my own rewrite policy >> which will just increment the relevant counter and not modify the event. >> The problem with this approach is again the filters, if an appender has a >> filter defined then I will count events that end up discarded. >> >> Is there some post-logging hook I can use? An event maybe? Any help will >> be much appreciated... >> Thanks, >> Guy Marom >> > >
