diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/monitor/MonitorBus.java b/liteflow-core/src/main/java/com/yomahub/liteflow/monitor/MonitorBus.java
index d0d13a092..ec9d719aa 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/monitor/MonitorBus.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/monitor/MonitorBus.java
@@ -7,26 +7,22 @@
  */
 package com.yomahub.liteflow.monitor;
 
-import java.math.BigDecimal;
-import java.math.RoundingMode;
-import java.text.MessageFormat;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Timer;
-import java.util.concurrent.ConcurrentHashMap;
-
+import com.yomahub.liteflow.entity.data.DataBus;
+import com.yomahub.liteflow.entity.monitor.CompStatistics;
+import com.yomahub.liteflow.property.LiteflowConfig;
 import com.yomahub.liteflow.util.BoundedPriorityBlockingQueue;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-
-import com.yomahub.liteflow.entity.data.DataBus;
-import com.yomahub.liteflow.property.LiteflowConfig;
-import com.yomahub.liteflow.entity.monitor.CompStatistics;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.text.MessageFormat;
+import java.util.*;
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 
 /**
  * 监控类元数据，打印执行器类
@@ -40,12 +36,13 @@ public class MonitorBus {
 
 	private final ConcurrentHashMap<String, BoundedPriorityBlockingQueue<CompStatistics>> statisticsMap = new ConcurrentHashMap<>();
 
+	private final ScheduledExecutorService printLogScheduler = Executors.newScheduledThreadPool(1);
+
 	public MonitorBus(LiteflowConfig liteflowConfig) {
 		this.liteflowConfig = liteflowConfig;
 
 		if(liteflowConfig.getEnableLog()){
-			Timer timer = new Timer();
-			timer.schedule(new MonitorTimeTask(this), liteflowConfig.getDelay(), liteflowConfig.getPeriod());
+			this.printLogScheduler.scheduleAtFixedRate(new MonitorTimeTask(this), liteflowConfig.getDelay(), liteflowConfig.getPeriod(), TimeUnit.MICROSECONDS);
 		}
 	}
 
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java b/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
index f250bd283..9907bd8ad 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
@@ -15,8 +15,10 @@ import org.springframework.util.Assert;
 import org.springframework.util.ResourceUtils;
 
 import java.io.IOException;
-import java.util.*;
-import java.util.function.Consumer;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -30,10 +32,12 @@ public abstract class FlowParser {
 
     public abstract void parse(List<String> contentList) throws Exception ;
 
+    private static final Pattern p = Pattern.compile("[^\\)\\(]+");
+
     //条件节点的正则解析
     public RegexEntity parseNodeStr(String str) {
         List<String> list = new ArrayList<String>();
-        Pattern p = Pattern.compile("[^\\)\\(]+");
+
         Matcher m = p.matcher(str);
         while(m.find()){
             list.add(m.group());