diff --git a/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/api/DefaultAttachmentClient.java b/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/api/DefaultAttachmentClient.java
index 2e26151..b61194e 100644
--- a/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/api/DefaultAttachmentClient.java
+++ b/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/api/DefaultAttachmentClient.java
@@ -212,8 +212,7 @@ public class DefaultAttachmentClient implements AttachmentClient {
 	public Optional<UploadObject> upload(@NotNull String businessId, @NotNull String filename, @NotNull byte[] array) {
 		removeDuplicateObject(businessId, filename);
 
-		String res = documentCenterService.upload("ebtp-mall-cloud", businessId,
-				fileConvertor.toMultipartFile(filename, array));
+		String res = documentCenterService.upload("ebtp-mall-cloud", businessId, fileConvertor.toMultipartFile(filename, array));
 
 		log.info("document center upload result: {}", res);
 
@@ -255,7 +254,7 @@ public class DefaultAttachmentClient implements AttachmentClient {
 	 * @param filename
 	 */
 	private void removeDuplicateObject(String businessId, String filename) {
-		log.info("remove duplicate name files {} in business: {}", filename, businessId);
+		log.info("remove files {} in business: {} if exists", filename, businessId);
 		Optional<AttachmentDetail> op = findByBusinessId(Arrays.asList(businessId));
 
 		op.ifPresent(detail -> {
diff --git a/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/convertor/ModelConvertor.java b/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/convertor/ModelConvertor.java
index fb08ed4..4852a04 100644
--- a/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/convertor/ModelConvertor.java
+++ b/mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/convertor/ModelConvertor.java
@@ -45,12 +45,14 @@ public class ModelConvertor {
 			AttachmentEntity entity = null;
 
 			try {
-				SysStorageVO vo = tpDownPO(content);
-				log.debug("convert to model: {}", vo);
+				Optional<SysStorageVO> op = tpDownPO(content);
 
-				entity = new AttachmentEntity();
-				entity.setId(vo.getFileId()).setFilename(vo.getOriginalName()).setBid(vo.getObjectId())
-						.setKey(vo.getFileName());
+				if (op.isPresent()) {
+					SysStorageVO vo = op.get();
+					entity = new AttachmentEntity();
+					entity.setId(vo.getFileId()).setFilename(vo.getOriginalName()).setBid(vo.getObjectId())
+							.setKey(vo.getFileName());
+				}
 			} catch (JsonProcessingException e) {
 				log.error(json);
 				log.error(e.getMessage());
@@ -82,7 +84,11 @@ public class ModelConvertor {
 	public Optional<byte[]> toByteArray(String json) {
 		return Optional.ofNullable(json).map(content -> {
 			try {
-				return tpDownPO(content).getFileStream();
+				Optional<SysStorageVO> op = tpDownPO(content);
+
+				if (op.isPresent()) {
+					return op.get().getFileStream();
+				}
 			} catch (JsonProcessingException e) {
 				log.error(json);
 				log.error(e.getMessage());
@@ -99,18 +105,20 @@ public class ModelConvertor {
 		return Optional.ofNullable(json).map(content -> {
 			DownloadEntity entity = null;
 			try {
-				SysStorageVO vo = tpDownPO(content);
+				Optional<SysStorageVO> op = tpDownPO(content);
 
-				entity = new DownloadEntity();
-				entity.setFilename(URLEncoder.DEFAULT.encode(vo.getOriginalName(), Charset.forName("UTF-8")))
-						.setStream(vo.getFileStream());
+				if (op.isPresent()) {
+					SysStorageVO vo = op.get();
+					entity = new DownloadEntity();
+					entity.setFilename(URLEncoder.DEFAULT.encode(vo.getOriginalName(), Charset.forName("UTF-8")))
+							.setStream(vo.getFileStream());
+				}
 			} catch (JsonProcessingException e) {
 				log.error(json);
 				log.error(e.getMessage());
 			}
 			return entity;
 		});
-
 	}
 
 	/**
@@ -138,10 +146,10 @@ public class ModelConvertor {
 	 * @throws JsonMappingException
 	 * @throws JsonProcessingException
 	 */
-	private SysStorageVO tpDownPO(String json) throws JsonMappingException, JsonProcessingException {
+	private Optional<SysStorageVO> tpDownPO(String json) throws JsonMappingException, JsonProcessingException {
 		log.debug("current convertor json is: {}", json);
 		return Optional.ofNullable(objectMapper.readValue(json, DownStream.class)).map(ds -> ds.getData())
-				.map(data -> data.getSysStorageVO()).orElseGet(SysStorageVO::new);
+				.map(data -> data.getSysStorageVO());
 	}
 
 	/**
diff --git a/mall-ebtp-cloud-attachment-sdk/src/main/resources/attachment-sdk-cofiguration.properties b/mall-ebtp-cloud-attachment-sdk/src/main/resources/attachment-sdk-cofiguration.properties
index 89e51e3..e62f226 100644
--- a/mall-ebtp-cloud-attachment-sdk/src/main/resources/attachment-sdk-cofiguration.properties
+++ b/mall-ebtp-cloud-attachment-sdk/src/main/resources/attachment-sdk-cofiguration.properties
@@ -1,5 +1,6 @@
-ribbon.ReadTimeout=1800000
-ribbon.SocketTimeout=1800000
+feign.hystrix.enabled=true
+feign.client.config.default.retryer=feign.Retryer.Default
+hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=600000
 
 # document center id
 document.center.service.id=core-service-document-center