When I run this component from a job, it generates numerous lines of warnings and information. Is there a way to disable this and to only output errors instead?
It's possible to modify the log4j level in the studio following this article:
https://wiki.talend.com/display/componentsteam/Log4j You will need to modify the last tag
<root>
<priority value ="info"/>
<appender-ref ref="CONSOLE"/>
<!-- <appender-ref ref="LOGSTASH"/> -->
</root>
change the "info" value to "error", and you won't see these warnings anymore.