WARN No appenders could be found for logger (org.apache.kafka.clients.consumer.ConsumerConfig)

[mostolog]

Hi

During Logstash 5.2.1 boot which uses kafka input, just noticed a few warnings:

log4j:WARN No appenders could be found for logger (org.apache.kafka.clients.consumer.ConsumerConfig).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

I have found some similar issues:

Fresh logstash 5.2 install gives log4j warnings and no logging from plugins

Any news on this? I was hoping to hear from the logstash team...

log4j:WARN No appenders could be found for logger

So. I finally decided it was time to set up my production server. New install using yum as per the instructions. I did an uninstall and re-install just now to make sure my fiddling hadn't messed things up. Version 2.2.1 on Centos 6.7 I had to set MAX_MAP_COUNT= as I am running an a Parrallels VPS. I now get: Starting elasticsearch: log4j:WARN No appenders could be found for logger (common). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/…

log4j:WARN No appenders could be found for logger (node)

Hey everyone Started to get that warning after upgrading to 0.9. Tried the usual configuration options to no avail (config pasted below). Any help would be appreciated.. To make sure that the paths are set I uncommented all the environment variables pertaining to logging and config paths .. cat /etc/sysconfig/elasticsearch ES_PATH_LOG=/var/log/elasticsearch ES_PATH_DATA=/var/lib/elasticsearch ES_PATH_WORK=/tmp/elasticsearch ES_PATH_CONF=/etc/elasticsearch ES_CONFIG=/etc/elasticsearch/…

but it's still unclear for me how to avoid them.
Should I create a logging.yml file? may I add a runtime arg? Could I add some config on logstash.yml? Or in log4j2.properties?

I hope you could help me.
Regards

Bump!