diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/dao/EssContractDao.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/dao/EssContractDao.java
index 4bfeaf64..f6c60748 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/dao/EssContractDao.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/dao/EssContractDao.java
@@ -1,5 +1,6 @@
 package cn.axzo.nanopart.ess.server.dao;
 
+import cn.axzo.nanopart.ess.api.domain.contract.Approver;
 import cn.axzo.nanopart.ess.api.domain.contract.EssApproveDetail;
 import cn.axzo.nanopart.ess.api.enums.EssContractState;
 import cn.axzo.nanopart.ess.server.entity.EssContract;
@@ -42,11 +43,13 @@ public class EssContractDao extends ServiceImpl<EssContractMapper, EssContract>
 
     public void setEssContractCreated(Long id,
                                       String flowId,
-                                      List<String> essFileIds) {
+                                      List<String> essFileIds,
+                                      List<Approver> approvers) {
         lambdaUpdate()
                 .eq(EssContract::getId, id)
                 .set(EssContract::getEssFieldIds, JSON.toJSONString(essFileIds))
                 .set(EssContract::getEssContractId, flowId)
+                .set(EssContract::getApprovers, JSON.toJSONString(approvers))
                 .update();
     }
 
@@ -62,7 +65,7 @@ public class EssContractDao extends ServiceImpl<EssContractMapper, EssContract>
                 .update();
     }
 
-    public void setOssFileKey(EssContract contract, String fileKey) {
+    public void setOssKey(EssContract contract, String fileKey) {
         lambdaUpdate()
                 .eq(EssContract::getId, contract.getId())
                 .set(EssContract::getOssFileKey, fileKey)
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/ContractManager.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/ContractManager.java
index e7290f59..4cbbcbde 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/ContractManager.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/ContractManager.java
@@ -62,7 +62,8 @@ public class ContractManager {
             for (int i = 0; i < contract.approverSize(); i++)
                 contract.getApprover(i).setEssRecipientId(essRecipientIds.get(i));
             essContractDao.setEssContractCreated(
-                    contract.getId(), essResponse.getFlowId(), essFileIds);
+                    contract.getId(), essResponse.getFlowId(),
+                    essFileIds, contract.getApprovers());
             contract = essContractDao.getOrThrow(essResponse.getFlowId());
             essBroadcaster.fireContractStateChanged(contract);
             CreateContractByFileResponse response = new CreateContractByFileResponse();
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
index 9323343c..a2004544 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
@@ -33,7 +33,6 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.stereotype.Service;
 
 import java.util.function.Function;
-import java.util.function.Supplier;
 
 import static cn.axzo.nanopart.ess.server.utils.BizAssertions.fail;
 
@@ -155,8 +154,7 @@ public class EssService {
                 && StringUtils.isNotBlank(contract.getOssFileKey())) {
             return ossService.getOssUrl(contract.getOssFileKey());
         }
-        maybeUploadContractToOss(contract.getEssContractId(),
-                () -> getContractPDFUrlFromEss(contract));
+        maybeUploadContractToOss(contract);
         return getContractPDFUrlFromEss(contract);
     }
 
@@ -165,15 +163,16 @@ public class EssService {
         return essClient.getContractPDFUrl(creator, contract.getEssContractId());
     }
 
-    public void maybeUploadContractToOss(String essContractId, Supplier<String> essPdfUrl) {
+    public void maybeUploadContractToOss(EssContract contract) {
         essSupport.asyncExec(() -> {
-            EssContract effectiveContract = essContractDao.findOrNull(essContractId);
+            EssContract effectiveContract = essContractDao.findOrNull(contract.getEssContractId());
             if (!effectiveContract.isFinalState()
                     || StringUtils.isNotBlank(effectiveContract.getOssFileKey()))
                 return;
+            String pdfUrl = getContractPDFUrlFromEss(effectiveContract);
             String fileName = String.format("%s.pdf", effectiveContract.getContractName());
-            String fileKey = ossService.uploadToOss(essPdfUrl.get(), fileName);
-            essContractDao.setOssFileKey(effectiveContract, fileKey);
+            String fileKey = ossService.uploadToOss(pdfUrl, fileName);
+            essContractDao.setOssKey(effectiveContract, fileKey);
         });
     }
 
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
index 79c7693a..d4db472d 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
@@ -164,9 +164,7 @@ class CallbackController implements EssCallbackApi, InitializingBean {
             }
             if (contract != null) {
                 contractManager.updateContractState(contract, state, approveDetails);
-                EssContract finalContract = contract;
-                essService.maybeUploadContractToOss(contract.getEssContractId(),
-                        () -> essService.getContractPDFUrlFromEss(finalContract));
+                essService.maybeUploadContractToOss(contract);
             }
             return changes.getFlowId();
         });
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/EssSupport.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/EssSupport.java
index 71434cd5..b403cf61 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/EssSupport.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/EssSupport.java
@@ -41,7 +41,7 @@ public class EssSupport {
 
     private final ExecutorService executor = new ThreadPoolExecutor(1, 5,
             0L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(1024),
+            new ArrayBlockingQueue<>(200),
             new NamedThreadFactory(EssSupport.class.getName(), false),
             new CallerRunsPolicy());