Reduce log message verbosity

Author: vickenty

dogstatsd-http/forwarder/src/main/java/com/datadoghq/dogstatsd/http/forwarder/Forwarder.java

@@ -126,8 +126,6 @@ public void send(URI url, byte[] payload) throws InterruptedException {
     void runOnce(Map.Entry<BoundedQueue.Key, Payload> item) throws InterruptedException {
         Payload payload = item.getValue();
         final URI url = baseUri.resolve(payload.url);
-        logger.log(
-                Level.INFO, "sending {0} bytes to {1}", new Object[] {payload.bytes.length, url});
 
         HttpRequest.Builder builder =
                 HttpRequest.newBuilder(url).POST(BodyPublishers.ofByteArray(payload.bytes));
@@ -147,11 +145,11 @@ void runOnce(Map.Entry<BoundedQueue.Key, Payload> item) throws InterruptedExcept
             res.body();
 
             logger.log(
-                    Level.INFO, "response {0}: {1}", new Object[] {res.statusCode(), res.body()});
+                Level.FINER, "sending {0} bytes to {1}: {2} {3}", new Object[] { payload.bytes.length, url, res.statusCode(), res.body() });
 
             handleResponse(res.statusCode(), item);
         } catch (IOException ex) {
-            logger.log(Level.WARNING, "error sending request: {0}", ex.toString());
+            logger.log(Level.WARNING, "error sending {0} bytes to {1}: {2}", new Object[] { payload.bytes.length, url, ex.toString() });
             handleTransportError(item);
         } catch (InterruptedException ex) {
             // Wouldn't be retried, but will show up as a leftover in a telemetry snapshot.
@@ -203,7 +201,7 @@ void increaseBackoff() {
     void backoff() throws InterruptedException {
         if (delay > 0) {
             int sleep = (int) (250.0 * delay * (0.5 + rng.nextDouble()));
-            logger.log(Level.INFO, "backoff={0}, sleeping {1}ms", new Object[] {delay, sleep});
+            logger.log(Level.FINEST, "backoff={0}, sleeping {1}ms", new Object[] {delay, sleep});
             Thread.sleep(sleep);
         }
     }