How to exclude XML & json key-value if key length is greater than 15 char and value length is greater than 100 char

Elastic Stack Logstash
2

This will be very similar to the question you asked about filtering on just the key length

ruby {
    code => '
        event.to_hash.each { |k, v|
            if k.length > 15 and v.length > 100
                event.remove(k)
            end
        }
    '
}