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You can separate logs in filtering/routing software like I wrote: Flume, Fluentd, Logstash, Kafka, or whatever popular today. Direct events to intermediate agent that able to split and transform logging events.

Answer with quote from https://logback.qos.ch/manual/layouts.html "TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others. —JON POSTEL, RFC 793" :-)