NonBlockingStatsDClient should provide way to handle queue overflow

[leventov]

java-dogstatsd-client/src/main/java/com/timgroup/statsd/StatsDSender.java

Lines 41 to 47 in 90771e0

	boolean send(final String message) {
	if (!shutdown) {
	queue.offer(message);
	return true;
	}
	return false;
	}

Currently if the queue is full events are just silently lost.

See apache/druid#7075

[nmuesch]

Hey @leventov There is currently an open PR that seems to address a similar issue - https://github.com/DataDog/java-dogstatsd-client/pull/65/files Would this satisfy your use case?

[leventov]

It seems like a different problem to me.