Ruby dumps tons of runtime errors after upgrade to 8.16.2

You can make an equivalent change in log4j2.properties. Last time I did this it was something like

logger.logstash1.name = logstash.filters.ruby
logger.logstash1.level = FATAL
#logger.logstash2.name = logstash.pipeline
#logger.logstash2.level = WARN

The names logstash1/logstash2 etc do not matter.

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