diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsBuilderTarget.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsBuilderTarget.java
index 16eb20c8..a070bf83 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsBuilderTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsBuilderTarget.java
@@ -27,6 +27,13 @@ public abstract class AbsBuilderTarget<TARGET extends AbsBuilderTarget> extends
 
   private BuilderController mStartController;
 
+  /**
+   * 任务操作前调用
+   */
+  protected void onPre() {
+
+  }
+
   private synchronized BuilderController getController() {
     if (mStartController == null) {
       mStartController = new BuilderController(getTaskWrapper());
@@ -58,6 +65,7 @@ public abstract class AbsBuilderTarget<TARGET extends AbsBuilderTarget> extends
    */
   @Override
   public long add() {
+    onPre();
     return getController().add();
   }
 
@@ -68,6 +76,7 @@ public abstract class AbsBuilderTarget<TARGET extends AbsBuilderTarget> extends
    */
   @Override
   public long create() {
+    onPre();
     return getController().create();
   }
 
@@ -82,6 +91,7 @@ public abstract class AbsBuilderTarget<TARGET extends AbsBuilderTarget> extends
    */
   @Override
   public long setHighestPriority() {
+    onPre();
     return getController().setHighestPriority();
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsNormalTarget.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsNormalTarget.java
index 4920b9a6..863e63f6 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsNormalTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsNormalTarget.java
@@ -31,6 +31,13 @@ import com.arialyy.aria.util.RecordUtil;
 public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends AbsTarget<TARGET>
     implements INormalFeature {
 
+  /**
+   * 任务操作前调用
+   */
+  protected void onPre() {
+
+  }
+
   /**
    * 是否忽略权限检查
    */
@@ -150,6 +157,7 @@ public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends Ab
    */
   @Override
   public void stop() {
+    onPre();
     getController().stop();
   }
 
@@ -168,6 +176,7 @@ public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends Ab
    * @param newStart true 立即将任务恢复到执行队列中
    */
   @Override public void resume(boolean newStart) {
+    onPre();
     getController().resume(newStart);
   }
 
@@ -176,7 +185,7 @@ public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends Ab
    */
   @Override
   public void cancel() {
-    getController().cancel();
+    cancel(false);
   }
 
   /**
@@ -184,17 +193,19 @@ public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends Ab
    */
   @Override
   public void reTry() {
+    onPre();
     getController().reTry();
   }
 
   /**
    * 删除任务
    *
-   * @param removeFile {@code true} 不仅删除任务数据库记录，还会删除已经删除完成的文件
+   * @param removeFile {@code true} 不仅删除任务数据库记录，还会删除已经完成的文件
    * {@code false}如果任务已经完成，只删除任务数据库记录，
    */
   @Override
   public void cancel(boolean removeFile) {
+    onPre();
     getController().cancel(removeFile);
   }
 
@@ -203,11 +214,13 @@ public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget> extends Ab
    */
   @Override
   public long reStart() {
+    onPre();
     return getController().reStart();
   }
 
   @Override
   public void save() {
+    onPre();
     getController().save();
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/CheckFtpDirEntityUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/CheckFtpDirEntityUtil.java
index b46da62a..a5d63470 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/CheckFtpDirEntityUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/CheckFtpDirEntityUtil.java
@@ -19,8 +19,8 @@ import android.text.TextUtils;
 import com.arialyy.aria.core.FtpUrlEntity;
 import com.arialyy.aria.core.inf.ICheckEntityUtil;
 import com.arialyy.aria.core.inf.IOptionConstant;
-import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.ALog;
+import com.arialyy.aria.util.CheckUtil;
 import java.io.File;
 
 public class CheckFtpDirEntityUtil implements ICheckEntityUtil {
@@ -58,10 +58,9 @@ public class CheckFtpDirEntityUtil implements ICheckEntityUtil {
       return false;
     }
 
-    if ((mEntity.getDirPath() == null || !mEntity.getDirPath().equals(mWrapper.getDirPathTemp()))
-        && DbEntity.checkDataExist(DownloadGroupEntity.class, "dirPath=?",
+    // 检查路径冲突
+    if (mWrapper.isNewTask() && !CheckUtil.checkDGPathConflicts(mWrapper.isIgnoreFilePathOccupy(),
         mWrapper.getDirPathTemp())) {
-      ALog.e(TAG, String.format("文件夹路径【%s】已被其它任务占用，请重新设置文件夹路径", mWrapper.getDirPathTemp()));
       return false;
     }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirConfigHandler.java b/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirConfigHandler.java
index 049001fd..3595874f 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirConfigHandler.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirConfigHandler.java
@@ -15,10 +15,12 @@
  */
 package com.arialyy.aria.core.download.target;
 
+import com.arialyy.aria.core.common.FtpOption;
 import com.arialyy.aria.core.download.DTaskWrapper;
 import com.arialyy.aria.core.inf.AbsTarget;
 import com.arialyy.aria.core.wrapper.AbsTaskWrapper;
 import com.arialyy.aria.core.wrapper.ITaskWrapper;
+import com.arialyy.aria.util.CommonUtil;
 import java.util.List;
 
 /**
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirNormalTarget.java b/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirNormalTarget.java
index f221a394..b79d158b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirNormalTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/target/FtpDirNormalTarget.java
@@ -18,6 +18,7 @@ package com.arialyy.aria.core.download.target;
 import com.arialyy.aria.core.common.AbsNormalTarget;
 import com.arialyy.aria.core.common.FtpOption;
 import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.inf.IOptionConstant;
 import com.arialyy.aria.core.manager.SubTaskManager;
 import com.arialyy.aria.util.CommonUtil;
 
@@ -27,6 +28,7 @@ import com.arialyy.aria.util.CommonUtil;
  */
 public class FtpDirNormalTarget extends AbsNormalTarget<FtpDirNormalTarget> {
   private FtpDirConfigHandler<FtpDirNormalTarget> mConfigHandler;
+  private FtpOption option;
 
   FtpDirNormalTarget(long taskId) {
     mConfigHandler = new FtpDirConfigHandler<>(this, taskId);
@@ -71,8 +73,7 @@ public class FtpDirNormalTarget extends AbsNormalTarget<FtpDirNormalTarget> {
     if (option == null) {
       throw new NullPointerException("ftp 任务配置为空");
     }
-    option.setUrlEntity(CommonUtil.getFtpUrlInfo(getEntity().getKey()));
-    getTaskWrapper().getOptionParams().setParams(option);
+    this.option = option;
     return this;
   }
 
@@ -88,4 +89,13 @@ public class FtpDirNormalTarget extends AbsNormalTarget<FtpDirNormalTarget> {
   public SubTaskManager getSubTaskManager() {
     return mConfigHandler.getSubTaskManager();
   }
+
+  @Override protected void onPre() {
+    super.onPre();
+    if (option == null) {
+      option = new FtpOption();
+    }
+    option.setUrlEntity(CommonUtil.getFtpUrlInfo(getEntity().getKey()));
+    getTaskWrapper().getOptionParams().setParams(option);
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/manager/DGTaskWrapperFactory.java b/Aria/src/main/java/com/arialyy/aria/core/manager/DGTaskWrapperFactory.java
index 4cbf22c9..e877052b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/manager/DGTaskWrapperFactory.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/manager/DGTaskWrapperFactory.java
@@ -19,6 +19,7 @@ import com.arialyy.aria.core.download.DGEntityWrapper;
 import com.arialyy.aria.core.download.DGTaskWrapper;
 import com.arialyy.aria.core.download.DownloadGroupEntity;
 import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.util.CommonUtil;
 import com.arialyy.aria.util.DbDataHelper;
 import java.util.List;
 
@@ -26,7 +27,7 @@ import java.util.List;
  * Created by Aria.Lao on 2017/11/1. 组合任务wrapper
  */
 class DGTaskWrapperFactory implements IGroupWrapperFactory<DownloadGroupEntity, DGTaskWrapper> {
-  private static final String TAG = "DTaskWrapperFactory";
+  private final String TAG = CommonUtil.getClassName(this);
   private static volatile DGTaskWrapperFactory INSTANCE = null;
 
   private DGTaskWrapperFactory() {
@@ -45,7 +46,7 @@ class DGTaskWrapperFactory implements IGroupWrapperFactory<DownloadGroupEntity,
     DGTaskWrapper wrapper;
     if (taskId == -1) {
       wrapper = new DGTaskWrapper(new DownloadGroupEntity());
-    }else {
+    } else {
       DownloadGroupEntity entity = getOrCreateHttpDGEntity(taskId);
       wrapper = new DGTaskWrapper(entity);
       if (entity.getSubEntities() != null && !entity.getSubEntities().isEmpty()) {
diff --git a/DEV_LOG.md b/DEV_LOG.md
index e5633197..e94c8782 100644
--- a/DEV_LOG.md
+++ b/DEV_LOG.md
@@ -3,6 +3,8 @@
     - fix bug https://github.com/AriaLyy/Aria/issues/573
     - android P适配 https://github.com/AriaLyy/Aria/issues/581
     - 添加ftp服务器标志 https://github.com/AriaLyy/Aria/issues/580
+    - 重构loader模块，让loader模块的代码更加清晰，去除一些不必要的线程创建
+    - 修复ftp上传完成后，删除服务器端的文件，无法重新下载的问题
   + v_3.8.1 (2019/12/22)
     - 修复一个表创建失败的问题 https://github.com/AriaLyy/Aria/issues/570
     - 修复一个非分块模式下导致下载失败的问题 https://github.com/AriaLyy/Aria/issues/571
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/AbsFtpInfoTask.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/AbsFtpInfoTask.java
index ecac890a..588df77b 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/AbsFtpInfoTask.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/AbsFtpInfoTask.java
@@ -91,7 +91,7 @@ public abstract class AbsFtpInfoTask<ENTITY extends AbsEntity, TASK_WRAPPER exte
       }
       String remotePath = CommonUtil.convertFtpChar(charSet, getRemotePath());
 
-      FTPFile[] files = client.listFiles(getRemotePath());
+      FTPFile[] files = client.listFiles(remotePath);
       boolean isExist = files.length != 0;
       if (!isExist && !isUpload) {
         int i = remotePath.lastIndexOf(File.separator);
@@ -128,7 +128,11 @@ public abstract class AbsFtpInfoTask<ENTITY extends AbsEntity, TASK_WRAPPER exte
       }
 
       //为了防止编码错乱，需要使用原始字符串
-      mSize = getFileSize(files, client, getRemotePath());
+      if (isUpload && files.length == 0){
+        handleFile(getRemotePath(), null);
+      }else {
+        mSize = getFileSize(files, client, getRemotePath());
+      }
       int reply = client.getReplyCode();
       if (!FTPReply.isPositiveCompletion(reply)) {
         if (isUpload) {
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpRecordHandler.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpRecordHandler.java
index 4666cece..2c9a5757 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpRecordHandler.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpRecordHandler.java
@@ -38,15 +38,21 @@ public final class FtpRecordHandler extends RecordHandler {
   }
 
   @Override public void handlerTaskRecord(TaskRecord record) {
+    if (getWrapper().getRequestType() == ITaskWrapper.U_FTP) {
+      // 上传任务记录的处理交由FtpUFileInfoTask 完成
+      return;
+    }
     RecordHelper helper = new RecordHelper(getWrapper(), record);
-    if (getWrapper().isSupportBP()) {
-      if (record.isBlock) {
-        helper.handleBlockRecord();
-      } else {
-        helper.handleMultiRecord();
-      }
-    } else if (record.threadNum == 1) {
+    if (record.threadNum == 1) {
       helper.handleSingleThreadRecord();
+    } else {
+      if (getWrapper().isSupportBP()) {
+        if (record.isBlock) {
+          helper.handleBlockRecord();
+        } else {
+          helper.handleMultiRecord();
+        }
+      }
     }
   }
 
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpTaskOption.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpTaskOption.java
index 21e3e40b..5279d5b7 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpTaskOption.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/FtpTaskOption.java
@@ -72,6 +72,11 @@ public final class FtpTaskOption implements ITaskOption {
    */
   private String activeExternalIPAddress;
 
+  /**
+   * 服务器文件是否存在，true 文件存在，用于ftp上传
+   */
+  private boolean serveFileIsExist = true;
+
   //---------------- ftp client 配置信息 start
   private String defaultDateFormatStr = null;
   private String recentDateFormatStr = null;
@@ -81,6 +86,14 @@ public final class FtpTaskOption implements ITaskOption {
   private String systemKey = FTPClientConfig.SYST_UNIX;
   //---------------- ftp client 配置信息 end
 
+  public boolean isServeFileIsExist() {
+    return serveFileIsExist;
+  }
+
+  public void setServeFileIsExist(boolean serveFileIsExist) {
+    this.serveFileIsExist = serveFileIsExist;
+  }
+
   public String getActiveExternalIPAddress() {
     return activeExternalIPAddress;
   }
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/download/FtpDGInfoTask.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/download/FtpDGInfoTask.java
index ef97c7b7..27411f04 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/download/FtpDGInfoTask.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/download/FtpDGInfoTask.java
@@ -28,6 +28,8 @@ import com.arialyy.aria.core.download.DownloadGroupEntity;
 import com.arialyy.aria.core.wrapper.AbsTaskWrapper;
 import com.arialyy.aria.ftp.AbsFtpInfoTask;
 import com.arialyy.aria.ftp.FtpTaskOption;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.CommonUtil;
 import com.arialyy.aria.util.RecordUtil;
 import java.nio.charset.Charset;
@@ -43,13 +45,27 @@ final class FtpDGInfoTask extends AbsFtpInfoTask<DownloadGroupEntity, DGTaskWrap
   }
 
   @Override public void run() {
-    if (mTaskWrapper.getEntity().getFileSize() > 1) {
+    if (mTaskWrapper.getEntity().getFileSize() > 1 && checkSubOption()) {
       callback.onSucceed(mEntity.getKey(), new CompleteInfo(200, mTaskWrapper));
     } else {
       super.run();
     }
   }
 
+  /**
+   * 检查子任务的任务设置
+   *
+   * @return true 子任务任务设置成功，false 子任务任务设置失败
+   */
+  private boolean checkSubOption() {
+    for (DTaskWrapper wrapper : mTaskWrapper.getSubTaskWrapper()) {
+      if (wrapper.getTaskOption() == null) {
+        return false;
+      }
+    }
+    return true;
+  }
+
   @Override protected String getRemotePath() {
     return mTaskOption.getUrlEntity().remotePath;
   }
@@ -92,9 +108,14 @@ final class FtpDGInfoTask extends AbsFtpInfoTask<DownloadGroupEntity, DGTaskWrap
    */
   private void addEntity(String remotePath, FTPFile ftpFile) {
     final FtpUrlEntity urlEntity = mTaskOption.getUrlEntity().clone();
+    String url =
+        urlEntity.scheme + "://" + urlEntity.hostName + ":" + urlEntity.port + "/" + remotePath;
+    if (checkEntityExist(url)){
+      ALog.w(TAG, "子任务已存在，取消子任务的添加，url = " + url);
+      return;
+    }
     DownloadEntity entity = new DownloadEntity();
-    entity.setUrl(
-        urlEntity.scheme + "://" + urlEntity.hostName + ":" + urlEntity.port + "/" + remotePath);
+    entity.setUrl(url);
     entity.setFilePath(mEntity.getDirPath() + "/" + remotePath);
     int lastIndex = remotePath.lastIndexOf("/");
     String fileName = lastIndex < 0 ? CommonUtil.keyToHashKey(remotePath)
@@ -106,8 +127,9 @@ final class FtpDGInfoTask extends AbsFtpInfoTask<DownloadGroupEntity, DGTaskWrap
     entity.setConvertFileSize(CommonUtil.formatFileSize(ftpFile.getSize()));
     entity.setFileSize(ftpFile.getSize());
 
-    //if(CheckUtil.checkDPathConflicts(mTaskWrapper.is))
-
+    if (DbEntity.checkDataExist(DownloadEntity.class, "downloadPath=?", entity.getFilePath())) {
+      DbEntity.deleteData(DownloadEntity.class, "downloadPath=?", entity.getFilePath());
+    }
     entity.insert();
 
     DTaskWrapper subWrapper = new DTaskWrapper(entity);
@@ -139,6 +161,21 @@ final class FtpDGInfoTask extends AbsFtpInfoTask<DownloadGroupEntity, DGTaskWrap
     subWrapper.setTaskOption(subOption);
   }
 
+  /**
+   * 检查子任务是否已经存在，如果子任务存在，取消添加操作
+   *
+   * @param key url
+   * @return true 子任务已存在，false 子任务不存在
+   */
+  private boolean checkEntityExist(String key) {
+    for (DTaskWrapper wrapper : mTaskWrapper.getSubTaskWrapper()) {
+      if (wrapper.getKey().equals(key)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
   @Override
   protected void failDownload(FTPClient client, String msg, Exception e, boolean needRetry) {
     super.failDownload(client, msg, e, needRetry);
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUFileInfoTask.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUFileInfoTask.java
index 3ca77eb1..e506b7c2 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUFileInfoTask.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUFileInfoTask.java
@@ -26,9 +26,11 @@ import com.arialyy.aria.core.processor.IFtpUploadInterceptor;
 import com.arialyy.aria.core.upload.UTaskWrapper;
 import com.arialyy.aria.core.upload.UploadEntity;
 import com.arialyy.aria.ftp.AbsFtpInfoTask;
+import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.CommonUtil;
 import com.arialyy.aria.util.DbDataHelper;
+import com.arialyy.aria.util.RecordUtil;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -61,7 +63,7 @@ final class FtpUFileInfoTask extends AbsFtpInfoTask<UploadEntity, UTaskWrapper>
     try {
       IFtpUploadInterceptor interceptor = mTaskOption.getUploadInterceptor();
       if (interceptor != null) {
-        /**
+        /*
          * true 使用拦截器，false 不使用拦截器
          */
         List<String> files = new ArrayList<>();
@@ -84,6 +86,7 @@ final class FtpUFileInfoTask extends AbsFtpInfoTask<UploadEntity, UTaskWrapper>
             ALog.d(TAG,
                 String.format("删除文件%s，code: %s， msg: %s", b ? "成功" : "失败", client.getReplyCode(),
                     client.getReplyString()));
+            mTaskOption.setServeFileIsExist(false);
           } else if (!TextUtils.isEmpty(interceptHandler.getNewFileName())) {
             ALog.i(TAG, String.format("远端已拥有同名文件，将修改remotePath，原文件名：%s，新文件名：%s",
                 mEntity.getFileName(), interceptHandler.getNewFileName()));
@@ -92,6 +95,7 @@ final class FtpUFileInfoTask extends AbsFtpInfoTask<UploadEntity, UTaskWrapper>
                 + interceptHandler.getNewFileName();
             mTaskOption.setNewFileName(interceptHandler.getNewFileName());
 
+            mTaskOption.setServeFileIsExist(false);
             closeClient(client);
             run();
             return false;
@@ -156,7 +160,39 @@ final class FtpUFileInfoTask extends AbsFtpInfoTask<UploadEntity, UTaskWrapper>
         record.save();
         threadRecord.save();
       }
+    }else {
+      ALog.d(TAG, "FTP服务器上不存在该文件");
+      mTaskWrapper.setNewTask(false);
+      TaskRecord record = DbDataHelper.getTaskRecord(mTaskWrapper.getKey(),
+          mTaskWrapper.getEntity().getTaskType());
+      if (record != null){
+        ALog.w(TAG, String.format("任务记录【%s】已存在，将删除该记录", mTaskWrapper.getKey()));
+        delTaskRecord(record);
+      }
+      mTaskWrapper.setNewTask(true);
+      record = new TaskRecord();
+      record.fileName = mEntity.getFileName();
+      record.filePath = mTaskWrapper.getKey();
+      record.threadRecords = new ArrayList<>();
+      ThreadRecord threadRecord = new ThreadRecord();
+      threadRecord.taskKey = record.filePath;
+      threadRecord.startLocation = 0;
+      threadRecord.endLocation = mEntity.getFileSize();
+      threadRecord.isComplete = false;
+
+      record.save();
+      threadRecord.save();
+    }
+  }
+
+  private void delTaskRecord(TaskRecord record){
+    List<ThreadRecord> threadRecords = record.threadRecords;
+    if (threadRecords != null && !threadRecords.isEmpty()){
+      for (ThreadRecord tr : threadRecords){
+        tr.deleteData();
+      }
     }
+    record.deleteData();
   }
 
   @Override protected void onPreComplete(int code) {
diff --git a/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUThreadTaskAdapter.java b/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUThreadTaskAdapter.java
index 6b8d9aa7..8d05431a 100644
--- a/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUThreadTaskAdapter.java
+++ b/FtpComponent/src/main/java/com/arialyy/aria/ftp/upload/FtpUThreadTaskAdapter.java
@@ -130,9 +130,10 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
           if (isTimeOut) {
             fail(new AriaIOException(TAG, "socket连接失败，该问题一般出现于网络断开，客户端重新连接，"
                 + "但是服务器端无法创建socket缺没有返回错误码的情况。"), false);
-          }
-          if (fa != null) {
-            fa.close();
+            if (fa != null) {
+              fa.close();
+            }
+            closeTimer();
           }
           isTimeOut = true;
         } catch (IOException e) {
@@ -143,6 +144,7 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
   }
 
   private void closeTimer() {
+    ALog.d(TAG, "closeTimer");
     if (timer != null && !timer.isShutdown()) {
       timer.shutdown();
     }
@@ -158,6 +160,7 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
     fa = new FtpFISAdapter(bis);
     storeFail = false;
     startTimer();
+    final long fileSize = getThreadConfig().tempFile.length();
     try {
       ALog.d(TAG, String.format("remotePath: %s", remotePath));
       client.storeFile(remotePath, fa, new OnFtpInputStreamListener() {
@@ -170,6 +173,7 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
             if (getThreadTask().isBreak() && !isStoped) {
               isStoped = true;
               client.abor();
+              return;
             }
             if (mSpeedBandUtil != null) {
               mSpeedBandUtil.limitNextBytes(bytesTransferred);
@@ -178,19 +182,12 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
           } catch (IOException e) {
             e.printStackTrace();
             storeFail = true;
-            try {
-              fa.close();
-            } catch (IOException e1) {
-              e1.printStackTrace();
-            }
-            closeClient(client);
           }
         }
       });
     } catch (IOException e) {
       String msg = String.format("文件上传错误，错误码为：%s, msg：%s, filePath: %s", client.getReply(),
           client.getReplyString(), getEntity().getFilePath());
-      closeClient(client);
       e.printStackTrace();
       if (e.getMessage().contains("AriaIOException caught while copying")) {
         e.printStackTrace();
@@ -198,11 +195,14 @@ final class FtpUThreadTaskAdapter extends BaseFtpThreadTaskAdapter {
         fail(new AriaIOException(TAG, msg, e), !storeFail);
       }
       return false;
+    } finally {
+      fa.close();
+      closeClient(client);
     }
     if (storeFail) {
       return false;
     }
-    int reply = client.getReply();
+    int reply = client.getReplyCode();
     if (!FTPReply.isPositiveCompletion(reply)) {
       if (reply != FTPReply.TRANSFER_ABORTED) {
         fail(new AriaIOException(TAG,
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java b/PublicComponent/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java
index a6b3c0ef..9aa6f10e 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java
@@ -53,7 +53,7 @@ public class DownloadGroupEntity extends AbsGroupEntity {
         getSubEntities().get(0).getUrl())) {
       return ITaskWrapper.ERROR;
     }
-    return getSubEntities().get(0).getUrl().startsWith("ftp") ? ITaskWrapper.D_FTP_DIR
+    return (groupHash.startsWith("ftp") || groupHash.startsWith("sftp")) ? ITaskWrapper.D_FTP_DIR
         : ITaskWrapper.DG_HTTP;
   }
 
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsGroupLoader.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsGroupLoader.java
index 7bd3ff25..3969971a 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsGroupLoader.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsGroupLoader.java
@@ -267,7 +267,8 @@ public abstract class AbsGroupLoader implements ILoaderVisitor, ILoader {
     Looper looper = Looper.myLooper();
     initState(looper);
     getState().setSubSize(getWrapper().getSubTaskWrapper().size());
-    if (getState().getCompleteNum() == getState().getSubSize()) {
+    if (getState().getCompleteNum() != 0
+        && getState().getCompleteNum() == getState().getSubSize()) {
       mListener.onComplete();
       return;
     }
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsSubDLoadUtil.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsSubDLoadUtil.java
index fe5ebb3b..3ec13a77 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsSubDLoadUtil.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/AbsSubDLoadUtil.java
@@ -16,6 +16,7 @@
 package com.arialyy.aria.core.group;
 
 import android.os.Handler;
+import com.arialyy.aria.core.TaskRecord;
 import com.arialyy.aria.core.download.DTaskWrapper;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.inf.IUtil;
@@ -81,6 +82,10 @@ public abstract class AbsSubDLoadUtil implements IUtil, Runnable {
     return mWrapper.getEntity();
   }
 
+  public TaskRecord getRecord(){
+    return getLoader().getRecord();
+  }
+
   @Override public void run() {
     if (isStop || isCancel) {
       return;
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupRunState.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupRunState.java
index dee9834f..7dcbcc13 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupRunState.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupRunState.java
@@ -23,7 +23,7 @@ import java.util.Set;
 /**
  * 组合任务执行中的状态信息
  */
-public class GroupRunState {
+public final class GroupRunState {
   /**
    * 子任务数
    */
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupSendParams.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupSendParams.java
index 82a157ec..303fff3d 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupSendParams.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/GroupSendParams.java
@@ -22,7 +22,7 @@ import com.arialyy.aria.core.task.AbsGroupTask;
  * Created by lyy on 2017/9/8.
  * 任务组参数传递
  */
-public class GroupSendParams<GROUP_TASK extends AbsGroupTask, ENTITY extends AbsNormalEntity> {
+public final class GroupSendParams<GROUP_TASK extends AbsGroupTask, ENTITY extends AbsNormalEntity> {
 
   public GROUP_TASK groupTask;
   public ENTITY entity;
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSchedulers.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSchedulers.java
index 9634b497..7bf10c0f 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSchedulers.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSchedulers.java
@@ -20,21 +20,20 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import com.arialyy.aria.core.AriaConfig;
-import com.arialyy.aria.core.common.AbsEntity;
 import com.arialyy.aria.core.config.Configuration;
 import com.arialyy.aria.core.inf.IThreadStateManager;
+import com.arialyy.aria.core.loader.IRecordHandler;
 import com.arialyy.aria.core.manager.ThreadTaskManager;
 import com.arialyy.aria.exception.TaskException;
 import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.NetUtils;
-import java.util.concurrent.ScheduledThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
+import java.io.File;
 
 /**
  * 组合任务子任务调度器，用于调度任务的开始、停止、失败、完成等情况
  * 该调度器生命周期和{@link AbsGroupLoaderUtil}生命周期一致
  */
-class SimpleSchedulers implements Handler.Callback {
+final class SimpleSchedulers implements Handler.Callback {
   private static final String TAG = "SimpleSchedulers";
   private SimpleSubQueue mQueue;
   private GroupRunState mGState;
@@ -86,7 +85,8 @@ class SimpleSchedulers implements Handler.Callback {
         ThreadTaskManager.getInstance().removeSingleTaskThread(mKey, threadName);
         break;
       case IThreadStateManager.STATE_FAIL:
-        handleFail(loaderUtil);
+        boolean needRetry = b.getBoolean(IThreadStateManager.DATA_RETRY, false);
+        handleFail(loaderUtil, needRetry);
         ThreadTaskManager.getInstance().removeSingleTaskThread(mKey, threadName);
         break;
     }
@@ -98,18 +98,19 @@ class SimpleSchedulers implements Handler.Callback {
    * 1、子任务失败次数大于等于配置的重试次数，才能认为子任务停止
    * 2、stopNum + failNum + completeNum + cacheNum == subSize，则认为组合任务停止
    * 3、failNum == subSize，只有全部的子任务都失败了，才能任务组合任务失败
+   *
+   * @param needRetry true 需要重试，false 不需要重试
    */
-  private synchronized void handleFail(final AbsSubDLoadUtil loaderUtil) {
+  private synchronized void handleFail(final AbsSubDLoadUtil loaderUtil, boolean needRetry) {
     Configuration config = Configuration.getInstance();
 
-    long interval = config.dGroupCfg.getSubReTryInterval();
     int num = config.dGroupCfg.getSubReTryNum();
     boolean isNotNetRetry = config.appCfg.isNotNetRetry();
 
-    final int reTryNum = num;
-    if ((!NetUtils.isConnected(AriaConfig.getInstance().getAPP()) && !isNotNetRetry)
+    if (!needRetry
+        || (!NetUtils.isConnected(AriaConfig.getInstance().getAPP()) && !isNotNetRetry)
         || loaderUtil.getLoader() == null // 如果获取不到文件信息，loader为空
-        || loaderUtil.getEntity().getFailNum() > reTryNum) {
+        || loaderUtil.getEntity().getFailNum() > num) {
       mQueue.removeTaskFromExecQ(loaderUtil);
       mGState.listener.onSubFail(loaderUtil.getEntity(), new TaskException(TAG,
           String.format("任务组子任务【%s】下载失败，下载地址【%s】", loaderUtil.getEntity().getFileName(),
@@ -127,20 +128,7 @@ class SimpleSchedulers implements Handler.Callback {
       }
       return;
     }
-
-    // 如果获取不到文件信息，loader为空
-    final ScheduledThreadPoolExecutor timer = new ScheduledThreadPoolExecutor(1);
-    timer.schedule(new Runnable() {
-      @Override public void run() {
-        AbsEntity entity = loaderUtil.getEntity();
-        if (entity.getFailNum() <= reTryNum) {
-          ALog.d(TAG, String.format("任务【%s】开始重试", loaderUtil.getEntity().getFileName()));
-          loaderUtil.reStart();
-        } else {
-          startNext();
-        }
-      }
-    }, interval, TimeUnit.MILLISECONDS);
+    SimpleSubRetryQueue.getInstance().offer(loaderUtil);
   }
 
   /**
@@ -175,6 +163,11 @@ class SimpleSchedulers implements Handler.Callback {
    */
   private synchronized void handleComplete(AbsSubDLoadUtil loader) {
     ALog.d(TAG, String.format("子任务【%s】完成", loader.getEntity().getFileName()));
+    if (loader.getRecord().isBlock) {
+      File partFile =
+          new File(String.format(IRecordHandler.SUB_PATH, loader.getRecord().filePath, 0));
+      partFile.renameTo(new File(loader.getRecord().filePath));
+    }
     ThreadTaskManager.getInstance().removeTaskThread(loader.getKey());
     mGState.listener.onSubComplete(loader.getEntity());
     mQueue.removeTaskFromExecQ(loader);
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubQueue.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubQueue.java
index 57020f3c..b50c7758 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubQueue.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubQueue.java
@@ -29,7 +29,7 @@ import java.util.Set;
 /**
  * 组合任务队列，该队列生命周期和{@link AbsGroupLoaderUtil}生命周期一致
  */
-class SimpleSubQueue implements ISubQueue<AbsSubDLoadUtil> {
+final class SimpleSubQueue implements ISubQueue<AbsSubDLoadUtil> {
   private final String TAG = CommonUtil.getClassName(getClass());
   /**
    * 缓存下载器
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubRetryQueue.java b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubRetryQueue.java
new file mode 100644
index 00000000..0d95cd05
--- /dev/null
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/group/SimpleSubRetryQueue.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.group;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.SynchronousQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 子任务重试队列
+ */
+final class SimpleSubRetryQueue {
+  private volatile static SimpleSubRetryQueue INSTANCE = null;
+  private ExecutorService pool = new ThreadPoolExecutor(5, 100,
+      60L, TimeUnit.SECONDS,
+      new SynchronousQueue<Runnable>());
+
+  public synchronized static SimpleSubRetryQueue getInstance() {
+    if (INSTANCE == null) {
+      synchronized (SimpleSubRetryQueue.class) {
+        INSTANCE = new SimpleSubRetryQueue();
+      }
+    }
+
+    return INSTANCE;
+  }
+
+  private SimpleSubRetryQueue() {
+
+  }
+
+  void offer(AbsSubDLoadUtil subDLoadUtil) {
+    pool.submit(subDLoadUtil.getLoader());
+  }
+}
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/loader/AbsNormalTTBuilder.java b/PublicComponent/src/main/java/com/arialyy/aria/core/loader/AbsNormalTTBuilder.java
index 33d7eb86..4f29e41a 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/loader/AbsNormalTTBuilder.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/loader/AbsNormalTTBuilder.java
@@ -1,6 +1,8 @@
 package com.arialyy.aria.core.loader;
 
+import android.os.Bundle;
 import android.os.Handler;
+import android.os.Message;
 import com.arialyy.aria.core.TaskRecord;
 import com.arialyy.aria.core.ThreadRecord;
 import com.arialyy.aria.core.common.AbsNormalEntity;
@@ -133,7 +135,16 @@ public abstract class AbsNormalTTBuilder implements IThreadTaskBuilder {
       if (tr.isComplete) {//该线程已经完成
         currentProgress += endL - startL;
         ALog.d(TAG, String.format("任务【%s】线程__%s__已完成", mWrapper.getKey(), i));
-        mStateHandler.obtainMessage(IThreadStateManager.STATE_COMPLETE).sendToTarget();
+        Message msg = mStateHandler.obtainMessage();
+        msg.what = IThreadStateManager.STATE_COMPLETE;
+        Bundle b = msg.getData();
+        if (b == null){
+          b = new Bundle();
+        }
+        b.putString(IThreadStateManager.DATA_THREAD_NAME,
+            CommonUtil.getThreadName(getEntity().getUrl(), tr.threadId));
+        msg.setData(b);
+        msg.sendToTarget();
         continue;
       }
 
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/loader/SubLoader.java b/PublicComponent/src/main/java/com/arialyy/aria/core/loader/SubLoader.java
index 5d162beb..f227b2e7 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/loader/SubLoader.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/loader/SubLoader.java
@@ -48,6 +48,7 @@ public final class SubLoader implements ILoader, ILoaderVisitor {
   private IRecordHandler recordHandler;
   private IThreadTask threadTask;
   private String parentKey;
+  private TaskRecord record;
 
   public SubLoader(AbsTaskWrapper wrapper, Handler schedulers) {
     this.wrapper = wrapper;
@@ -92,7 +93,7 @@ public final class SubLoader implements ILoader, ILoaderVisitor {
   }
 
   private void handlerTask() {
-    TaskRecord record = recordHandler.getRecord(wrapper.getEntity().getFileSize());
+    record = recordHandler.getRecord(wrapper.getEntity().getFileSize());
     if (record.threadRecords != null
         && !TextUtils.isEmpty(record.filePath)
         && new File(record.filePath).exists()
@@ -123,6 +124,10 @@ public final class SubLoader implements ILoader, ILoaderVisitor {
     }
   }
 
+  public TaskRecord getRecord(){
+    return record;
+  }
+
   public void setParentKey(String parentKey) {
     this.parentKey = parentKey;
   }
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/task/ThreadTask.java b/PublicComponent/src/main/java/com/arialyy/aria/core/task/ThreadTask.java
index 8c36ae72..a9463d26 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/task/ThreadTask.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/task/ThreadTask.java
@@ -86,11 +86,17 @@ public class ThreadTask implements IThreadTask, IThreadTaskObserver {
     mEntity = mTaskWrapper.getEntity();
     mLastSaveTime = System.currentTimeMillis();
     mConfigThreadPool = Executors.newCachedThreadPool();
-
     isNotNetRetry = AriaConfig.getInstance().getAConfig().isNotNetRetry();
     mRangeProgress = mRecord.startLocation;
     mLastRangeProgress = mRangeProgress;
     updateInterval = config.updateInterval;
+    checkFileExist();
+  }
+
+  private void checkFileExist() {
+    if (!getConfig().tempFile.exists()) {
+      FileUtil.createFile(getConfig().tempFile);
+    }
   }
 
   /**
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/DelegateFind.java b/PublicComponent/src/main/java/com/arialyy/aria/orm/DelegateFind.java
index 55dbfffc..4f0ba511 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/orm/DelegateFind.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/DelegateFind.java
@@ -98,7 +98,7 @@ class DelegateFind extends AbsDelegate {
    */
   <T extends AbsDbWrapper> List<T> findRelationData(SQLiteDatabase db, Class<T> clazz,
       String... expression) {
-    return exeRelationSql(db, clazz, -1, -1, expression);
+    return exeRelationSql(db, clazz, 1, 10, expression);
   }
 
   /**
@@ -111,6 +111,7 @@ class DelegateFind extends AbsDelegate {
   <T extends AbsDbWrapper> List<T> findRelationData(SQLiteDatabase db, Class<T> clazz,
       int page, int num, String... expression) {
     if (page < 1 || num < 1) {
+      ALog.w(TAG, "page，num 小于1");
       return null;
     }
     return exeRelationSql(db, clazz, page, num, expression);
@@ -345,6 +346,7 @@ class DelegateFind extends AbsDelegate {
   <T extends DbEntity> List<T> findData(SQLiteDatabase db, Class<T> clazz, int page, int num,
       String... expression) {
     if (page < 1 || num < 1) {
+      ALog.w(TAG, "page, bum 小于1");
       return null;
     }
     db = checkDb(db);
@@ -390,6 +392,7 @@ class DelegateFind extends AbsDelegate {
   <T extends DbEntity> List<T> findDataByFuzzy(SQLiteDatabase db, Class<T> clazz,
       int page, int num, String conditions) {
     if (page < 1 || num < 1) {
+      ALog.w(TAG, "page, bum 小于1");
       return null;
     }
     db = checkDb(db);
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/util/RecordUtil.java b/PublicComponent/src/main/java/com/arialyy/aria/util/RecordUtil.java
index 3debb45f..7754b050 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/util/RecordUtil.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/util/RecordUtil.java
@@ -65,6 +65,15 @@ public class RecordUtil {
       return;
     }
     DownloadGroupEntity groupEntity = DbDataHelper.getDGEntityByPath(dirPath);
+    // 处理组任务存在，而子任务为空的情况
+    if (groupEntity == null) {
+      groupEntity = DbEntity.findFirst(DownloadGroupEntity.class, "dirPath=?", dirPath);
+      if (groupEntity != null) {
+        groupEntity.deleteData();
+        DbEntity.deleteData(DownloadEntity.class, "groupHash=?", groupEntity.getGroupHash());
+      }
+      return;
+    }
 
     delGroupTaskRecord(groupEntity, removeFile, true);
   }
diff --git a/app/src/main/java/com/arialyy/simple/core/download/group/FTPDirDownloadActivity.java b/app/src/main/java/com/arialyy/simple/core/download/group/FTPDirDownloadActivity.java
index a5fb594f..e13632d2 100644
--- a/app/src/main/java/com/arialyy/simple/core/download/group/FTPDirDownloadActivity.java
+++ b/app/src/main/java/com/arialyy/simple/core/download/group/FTPDirDownloadActivity.java
@@ -37,7 +37,7 @@ import java.security.AlgorithmConstraints;
  * Created by lyy on 2017/7/6.
  */
 public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBinding> {
-  private static final String dir = "ftp://9.9.9.50:2121/upload/测试";
+  private static final String dir = "ftp://9.9.9.72:2121/upload/测试";
 
   private SubStateLinearLayout mChildList;
   private long mTaskId = -1;
@@ -81,6 +81,7 @@ public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBi
                   Environment.getExternalStorageDirectory().getPath() + "/Download/ftp_dir")
               .setGroupAlias("ftp文件夹下载")
               .option(getFtpOption())
+              .ignoreFilePathOccupy()
               .create();
           getBinding().setStateStr(getString(R.string.stop));
           break;
@@ -124,6 +125,7 @@ public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBi
   }
 
   @DownloadGroup.onTaskRunning() protected void running(DownloadGroupTask task) {
+    ALog.d(TAG, "ftp dir running, p = " + task.getPercent());
     getBinding().setProgress(task.getPercent());
     getBinding().setSpeed(task.getConvertSpeed());
     mChildList.updateChildProgress(task.getEntity().getSubEntities());
@@ -135,6 +137,7 @@ public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBi
 
   @DownloadGroup.onTaskStop() void taskStop(DownloadGroupTask task) {
     getBinding().setSpeed("");
+    getBinding().setStateStr(getString(R.string.start));
   }
 
   @DownloadGroup.onTaskCancel() void taskCancel(DownloadGroupTask task) {
diff --git a/app/src/main/java/com/arialyy/simple/core/upload/FtpUploadActivity.java b/app/src/main/java/com/arialyy/simple/core/upload/FtpUploadActivity.java
index ef2c856b..b4096499 100644
--- a/app/src/main/java/com/arialyy/simple/core/upload/FtpUploadActivity.java
+++ b/app/src/main/java/com/arialyy/simple/core/upload/FtpUploadActivity.java
@@ -55,8 +55,7 @@ public class FtpUploadActivity extends BaseActivity<ActivityFtpUploadBinding> {
   private String mUrl;
   private UploadModule mModule;
   private long mTaskId = -1;
-  private String user = "ftpuser", pwd = "ftpuser2020";
-  //private String user = "lao", pwd = "123456";
+  private String user = "lao", pwd = "123456";
 
   @Override protected void init(Bundle savedInstanceState) {
     setTile("D_FTP 文件上传");
diff --git a/app/src/main/java/com/arialyy/simple/core/upload/UploadModule.java b/app/src/main/java/com/arialyy/simple/core/upload/UploadModule.java
index 6dcb68d7..deff3f3c 100644
--- a/app/src/main/java/com/arialyy/simple/core/upload/UploadModule.java
+++ b/app/src/main/java/com/arialyy/simple/core/upload/UploadModule.java
@@ -38,8 +38,7 @@ public class UploadModule extends BaseViewModule {
     //String url = AppUtil.getConfigValue(context, FTP_URL_KEY, "ftp://9.9.9.72:2121/aab/你好");
     //String filePath = AppUtil.getConfigValue(context, FTP_PATH_KEY,
     //    Environment.getExternalStorageDirectory().getPath() + "/Download/AndroidAria.db");
-    String url = "ftp://101.132.33.64:21/home/ftpuser/videopic/historymonitor/jobs/test";
-    //String url = "ftp://9.9.9.72:2121/aab/你好";
+    String url = "ftp://9.9.9.72:2121/aab/你好";
     String filePath = "/mnt/sdcard/QQMusic-import-1.2.1.zip";
 
     UploadEntity entity = Aria.upload(context).getFirstUploadEntity(filePath);