diff --git a/src/main/java/com/thebeastshop/liteflow/core/FlowExecutor.java b/src/main/java/com/thebeastshop/liteflow/core/FlowExecutor.java
index a10e217b8..1eabad407 100644
--- a/src/main/java/com/thebeastshop/liteflow/core/FlowExecutor.java
+++ b/src/main/java/com/thebeastshop/liteflow/core/FlowExecutor.java
@@ -97,6 +97,7 @@ public class FlowExecutor {
 			
 			if(StringUtils.isBlank(slot.getRequestId())) {
 				slot.generateRequestId();
+				LOG.info("requestId[{}] has generated",slot.getRequestId());
 			}
 			
 			if(!isInnerChain) {
@@ -120,13 +121,13 @@ public class FlowExecutor {
 							if(component.isAccess()){
 								component.execute();
 								if(component.isEnd()) {
-									LOG.info("component[{}] lead the chain to end",component.getClass().getSimpleName());
+									LOG.info("[{}]:component[{}] lead the chain to end",slot.getRequestId(),component.getClass().getSimpleName());
 									break;
 								}
 							}
 						}catch(Throwable t){
 							if(component.isContinueOnError()){
-								LOG.error("component[{}] cause error,but flow is still go on",t,component.getClass().getSimpleName());
+								LOG.error("[{}]:component[{}] cause error,but flow is still go on",t,slot.getRequestId(),component.getClass().getSimpleName());
 							}else{
 								throw t;
 							}
@@ -142,7 +143,7 @@ public class FlowExecutor {
 			}
 			return (T)slot;
 		}catch(Exception e){
-			LOG.error("executor cause error",e);
+			LOG.error("[{}]:executor cause error",e,slot.getRequestId());
 			throw new FlowSystemException("executor cause error");
 		}finally{
 			if(!isInnerChain) {
diff --git a/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java b/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
index e5cf999dc..87b3dd63f 100644
--- a/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
+++ b/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
@@ -32,8 +32,9 @@ public abstract class NodeComponent {
 	private String nodeId;
 	
 	public void execute() throws Exception{
-		LOG.info("start component[{}] execution",this.getClass().getSimpleName());
-		this.getSlot().addStep(new CmpStep(nodeId, CmpStepType.START));
+		Slot slot = this.getSlot();
+		LOG.info("[{}]:start component[{}] execution",slot.getRequestId(),this.getClass().getSimpleName());
+		slot.addStep(new CmpStep(nodeId, CmpStepType.START));
 		StopWatch stopWatch = new StopWatch();
 		stopWatch.start();
 		long initm=Runtime.getRuntime().freeMemory();
@@ -43,7 +44,7 @@ public abstract class NodeComponent {
 		long timeSpent = stopWatch.getTime();
 		long endm=Runtime.getRuntime().freeMemory();
 		
-		this.getSlot().addStep(new CmpStep(nodeId, CmpStepType.END));
+		slot.addStep(new CmpStep(nodeId, CmpStepType.END));
 		
 		//性能统计
 		CompStatistics statistics = new CompStatistics();
@@ -54,7 +55,7 @@ public abstract class NodeComponent {
 		
 		
 		if(this instanceof NodeCondComponent){
-			String condNodeId = this.getSlot().getCondResult(this.getClass().getName());
+			String condNodeId = slot.getCondResult(this.getClass().getName());
 			if(StringUtils.isNotBlank(condNodeId)){
 				Node thisNode = FlowParser.getNode(nodeId);
 				Node condNode = thisNode.getCondNode(condNodeId);
@@ -66,7 +67,7 @@ public abstract class NodeComponent {
 			}
 		}
 		
-		LOG.debug("componnet[{}] finished in {} milliseconds",this.getClass().getSimpleName(),timeSpent);
+		LOG.debug("[{}]:componnet[{}] finished in {} milliseconds",slot.getRequestId(),this.getClass().getSimpleName(),timeSpent);
 	}
 	
 	protected abstract void process() throws Exception;
diff --git a/src/main/java/com/thebeastshop/liteflow/entity/data/DataBus.java b/src/main/java/com/thebeastshop/liteflow/entity/data/DataBus.java
index 9cd3b52fa..d0e483796 100644
--- a/src/main/java/com/thebeastshop/liteflow/entity/data/DataBus.java
+++ b/src/main/java/com/thebeastshop/liteflow/entity/data/DataBus.java
@@ -47,9 +47,9 @@ public class DataBus {
 	
 	public static void releaseSlot(int slotIndex){
 		if(slots[slotIndex] != null){
+			LOG.info("[{}]:slot[{}] released",slots[slotIndex].getRequestId(),slotIndex);
 			slots[slotIndex] = null;
 			OCCUPY_COUNT.decrementAndGet();
-			LOG.info("slot[{}] released",slotIndex);
 		}else{
 			LOG.warn("slot[{}] already has been released",slotIndex);
 		}