I guess it is because zeppelin didn't include log4j-core , you can try to put log4j-core jar into the lib folder of zeppelin.
Tony Delattre <[email protected]> 于2020年4月16日周四 下午11:16写道： > Hi, > > Is it possible to switch to JSON formatted logs for Zeppelin? > I figured out it must be configurated in log4j.properties but when i apply > my settings and restart the app, it says that it didn't find the JsonLayout > Class: > > log4j:ERROR Could not instantiate class [org.apache.log4j.JsonLayout]. > java.lang.ClassNotFoundException: org.apache.log4j.JsonLayout > > Any hints on how i can get to have it working ? > > Best regards > -- Best Regards Jeff Zhang
