You might want to post your config and the precise message along with any stack trace. You can also set status="DEBUG" on the Configuration element in the config file.
Gary On Tue, Oct 10, 2017 at 12:54 AM, Pietro Galassi <pietro.gala...@gmail.com> wrote: > Hi, > > i've just upgrated log4j from 2.5 to 2.9.0 but after the upgrade i'm not > able to send logs to logstash. > > Either while starting up now the application says that it cant find the > Async logger. >