Merge branch 'master' of github.com:thingsboard/thingsboard

@@ -45,7 +45,7 @@ public class RpcManagerActor extends ContextAwareActor {
 
     private final ServerAddress instance;
 
-    public RpcManagerActor(ActorSystemContext systemContext) {
+    RpcManagerActor(ActorSystemContext systemContext) {
         super(systemContext);
         this.sessionActors = new HashMap<>();
         this.pendingMsgs = new HashMap<>();
@@ -55,7 +55,6 @@ public class RpcManagerActor extends ContextAwareActor {
                 .filter(otherServer -> otherServer.getServerAddress().compareTo(instance) > 0)
                 .forEach(otherServer -> onCreateSessionRequest(
                         new RpcSessionCreateRequestMsg(UUID.randomUUID(), otherServer.getServerAddress(), null)));
-
     }
 
     @Override

@@ -48,7 +48,8 @@ public class CassandraBufferedRateExecutor extends AbstractBufferedRateExecutor<
 
     @Scheduled(fixedDelayString = "${cassandra.query.rate_limit_print_interval_ms}")
     public void printStats() {
-        log.info("Permits totalAdded [{}] totalLaunched [{}] totalReleased [{}] totalFailed [{}] totalExpired [{}] totalRejected [{}] currBuffer [{}] ",
+        log.info("Permits queueSize [{}] totalAdded [{}] totalLaunched [{}] totalReleased [{}] totalFailed [{}] totalExpired [{}] totalRejected [{}] currBuffer [{}] ",
+                getQueueSize(),
                 totalAdded.getAndSet(0), totalLaunched.getAndSet(0), totalReleased.getAndSet(0),
                 totalFailed.getAndSet(0), totalExpired.getAndSet(0), totalRejected.getAndSet(0),
                 concurrencyLevel.get());

@@ -166,4 +166,8 @@ public abstract class AbstractBufferedRateExecutor<T extends AsyncTask, F extend
             log.debug("[{}] {} task", taskCtx.getId(), action);
         }
     }
+
+    protected int getQueueSize(){
+        return queue.size();
+    }
 }