diff --git a/bt/spider.js b/bt/spider.js
index aab7048..316b4ea 100644
--- a/bt/spider.js
+++ b/bt/spider.js
@@ -109,6 +109,10 @@ class Spider extends Emiter {
             return
         }
 
+        if(config.trafficIgnoreDHT && config.trafficMax > 0 && this.trafficSpeed > 0 && this.trafficSpeed > config.trafficMax) {
+            return
+        }
+
     	const {t: tid, a: {id: nid, target: infohash}} = message
 
         if (tid === undefined || target.length != 20 || nid.length != 20) {
@@ -130,6 +134,10 @@ class Spider extends Emiter {
             return
         }
 
+        if(config.trafficIgnoreDHT && config.trafficMax > 0 && this.trafficSpeed > 0 && this.trafficSpeed > config.trafficMax) {
+            return
+        }
+
         const {t: tid, a: {id: nid, info_hash: infohash}} = message
 
         if (tid === undefined || infohash.length != 20 || nid.length != 20) {
@@ -174,6 +182,14 @@ class Spider extends Emiter {
     }
 
     onPingRequest(message, address) {
+        if(this.cpuLimit > 0 && cpuUsage() > this.cpuLimit) {
+            return
+        }
+
+        if(config.trafficIgnoreDHT && config.trafficMax > 0 && this.trafficSpeed > 0 && this.trafficSpeed > config.trafficMax) {
+            return
+        }
+
     	this.send({ t: message.t, y: 'r', r: { id: Node.neighbor(message.a.id, this.table.id) } }, address)
     }
 
@@ -224,6 +240,7 @@ class Spider extends Emiter {
 
         if(config.trafficMax > 0)
         {
+            trafficDebug('inore dht traffic', config.trafficIgnoreDHT)
             const path = `/sys/class/net/${config.trafficInterface}/statistics/rx_bytes`
             if(fs.existsSync(path))
             {
diff --git a/config.js b/config.js
index c6c8a5f..b867f45 100644
--- a/config.js
+++ b/config.js
@@ -42,6 +42,7 @@ let config = {
 	trafficInterface: 'enp2s0',
 	trafficMax: 0,
 	trafficUpdateTime: 3, //secs
+	trafficIgnoreDHT: false
 }
 
 const fs = require('fs');
diff --git a/index.js b/index.js
index 3c7e0a2..e4a9fa9 100644
--- a/index.js
+++ b/index.js
@@ -490,15 +490,16 @@ let pushDatabaseBalance = () => {
 	undoneQueries++;
 	if(undoneQueries >= 5000)
 	{
-		balanceDebug('too much freeze mysql connection. doing balance, queries:', undoneQueries);
+		balanceDebug('start balance mysql, queries:', undoneQueries);
 		spider.ignore = true;
 	}
 };
 let popDatabaseBalance = () => {
 	undoneQueries--;
+	balanceDebug('balanced, queries left:', undoneQueries);
 	if(undoneQueries == 0)
 	{
-		balanceDebug('balance done, queries:', undoneQueries);
+		balanceDebug('balance done');
 		spider.ignore = !config.indexer;
 	}
 };