diff --git a/src/main/java/org/bdware/sc/ContractManager.java b/src/main/java/org/bdware/sc/ContractManager.java
index 6ed3def..40dc459 100644
--- a/src/main/java/org/bdware/sc/ContractManager.java
+++ b/src/main/java/org/bdware/sc/ContractManager.java
@@ -792,14 +792,9 @@ public class ContractManager {
 
     public String startContractAndRedirect(Contract c, PrintStream ps, String alias, boolean isDebug) {
         long freeMemory = getFreeMemory();
-        if (freeMemory < memoryLimit || statusRecorder.runningProcess.size() > 8) {
+        if (statusRecorder.runningProcess.size() > 5 && (freeMemory < memoryLimit)) {
             statusRecorder.hangLeastUsedContractProcess();
-            //  ContractResult r =
-            //        new ContractResult(
-            //              Status.Error, new JsonPrimitive("insufficient memory:" + freeMemory));
-            //  return JsonUtil.toJson(r);
         }
-        //        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
         ContractResult r;
         try {
             if (c.getScriptStr().startsWith("/")) {
@@ -2200,7 +2195,7 @@ public class ContractManager {
     }
 
     public JsonElement getLedgerParams() {
-       return chainOpener.getLedgerParams();
+        return chainOpener.getLedgerParams();
     }
 
     // 合约状态