Log4j and "ERROR RollingFile contains an invalid element or attribute "LookupFilter""

Experience Manager (PaaS/OnPrem)
1

We are using Redis client in Tomcat, so we had to add (among others) slf4j libraries to Tomcat’s root lib folder. This resulted in breaking our log4j configuration in BrXM cms & site applications - we use seperate distributions for authoring & delivery. I tried fixing this problem with using “Log4j 2 SLF4J binding” library
and reinitializing log4j configuration (reading log4j2.xml) in site application startup. Logging started to work again, but context based logging did not work.
I also get an error during Log4j reinitialization:

main ERROR RollingFile contains an invalid element or attribute “LookupFilter”

Any ideas why is element (from log4j2.xml) “LookupFilter” not recognized by the log4j?

Thanks,
Blaz

2

Solved with reinitializing log4j context during site startup and adding attribute

packages=“org.onehippo.cms7.logging.log4j”

in configuration element of log4j2.xml