diff --git a/.eslintrc.json b/.eslintrc.json
index f2d6a6a3..c1213839 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -8,7 +8,41 @@
     }
   },
   "rules": {
-    "semi": 2
+    "semi": 2,
+    "quotes": 0,
+    "strict": 0,
+    "padding-line-between-statements": 0,
+    "spaced-comment": 0,
+    "no-console": 0,
+    "comma-dangle": 0,
+    "no-unneeded-ternary": 0,
+    "space-before-function-paren": 0,
+    "indent": 0,
+    "curly": 0,
+    "no-unused-vars": 0,
+    "guard-for-in": 0,
+    "radix": 0,
+    "no-param-reassign": 0,
+    "no-else-return": 0,
+    "eqeqeq": 0,
+    "dot-notation": 0,
+    "object-curly-newline": 0,
+    "operator-assignment": 0,
+    "no-shadow": 0,
+    "require-atomic-updates": 0,
+    "nonblock-statement-body-position": 0,
+    "no-empty": 0,
+    "no-lonely-if": 0,
+    "one-var": 0,
+    "block-scoped-var": 0,
+    "no-redeclare": 0,
+    "no-useless-return": 0,
+    "no-loop-func": 0,
+    "default-case": 0,
+    "no-fallthrough": 0,
+    "prefer-promise-reject-errors": 0,
+    "no-throw-literal": 0,
+    "brace-style": 0
   },
   "extends": ["@alicloud/eslint-config/es5"],
   "ignorePatterns": ["static/", "vendor/", "dist/", "node_modules/", "test/"],
diff --git a/app/components/filters/formater.js b/app/components/filters/formater.js
index 5fc2d0e5..2195b853 100644
--- a/app/components/filters/formater.js
+++ b/app/components/filters/formater.js
@@ -1,4 +1,3 @@
-
 angular
     .module('web')
     .filter('trustAsResourceUrl', [
diff --git a/app/components/filters/list-filter.js b/app/components/filters/list-filter.js
index a0bd4b30..e692d39b 100644
--- a/app/components/filters/list-filter.js
+++ b/app/components/filters/list-filter.js
@@ -1,4 +1,3 @@
-
 angular.module('web').filter('listFilter', function() {
   return function(arr, keyFn, value) {
     if (!value) { return arr; }
diff --git a/app/components/services/cipher.js b/app/components/services/cipher.js
index f720f04a..0f3e808a 100644
--- a/app/components/services/cipher.js
+++ b/app/components/services/cipher.js
@@ -9,7 +9,7 @@ angular.module('web').factory('Cipher', function() {
   };
 
   function cipher(buf, key, algorithm) {
-    if (!buf instanceof Buffer) {
+    if (!(buf instanceof Buffer)) {
       buf = new Buffer(buf);
     }
 
diff --git a/app/components/services/diff-modal.js b/app/components/services/diff-modal.js
index ab02ef10..fa13344d 100644
--- a/app/components/services/diff-modal.js
+++ b/app/components/services/diff-modal.js
@@ -1,4 +1,3 @@
-
 angular
     .module('web')
     .factory('DiffModal', [
diff --git a/app/components/services/oss-download-manager.js b/app/components/services/oss-download-manager.js
index a30e36ea..137841f1 100644
--- a/app/components/services/oss-download-manager.js
+++ b/app/components/services/oss-download-manager.js
@@ -259,6 +259,7 @@ angular.module('web').factory('ossDownloadManager', [
           // 文件
           if (process.platform == 'win32') {
             // 修复window下，文件名含非法字符需要转义
+            // eslint-disable-next-line no-useless-escape
             if (/[\/\\\:\<\>\?\*\"\|]/.test(fileName)) {
               fileName = encodeURIComponent(fileName);
               filePath = path.join(
diff --git a/app/components/services/oss-upload-manager.js b/app/components/services/oss-upload-manager.js
index 31b9dfb5..06fb5da3 100644
--- a/app/components/services/oss-upload-manager.js
+++ b/app/components/services/oss-upload-manager.js
@@ -367,13 +367,13 @@ angular.module('web').factory('ossUploadManager', [
                 from: n.from,
                 status: n.status,
                 message: n.message,
+                ecCode: n.ecCode,
+                requestId: n.requestId,
                 prog: n.prog
               });
             });
 
             // console.log('request save upload:', t);
-
-            // console.log('-save')
             fs.writeFileSync(getUpProgFilePath(), JSON.stringify(t));
             $scope.calcTotalProg();
           },
diff --git a/app/components/services/oss2.js b/app/components/services/oss2.js
index c05905e6..c55dbf67 100644
--- a/app/components/services/oss2.js
+++ b/app/components/services/oss2.js
@@ -1,3 +1,4 @@
+/* eslint-disable no-unexpected-multiline */
 angular.module('web').factory('ossSvs2', [
   '$q',
   '$rootScope',
@@ -245,6 +246,7 @@ angular.module('web').factory('ossSvs2', [
             if (i.status === 'fulfilled') {
               fulfilled.push(i.value);
             } else {
+              // eslint-disable-next-line no-unused-expressions
               i.status === 'rejected';
 
               if (Array.isArray(i.reason)) {
@@ -1200,14 +1202,15 @@ angular.module('web').factory('ossSvs2', [
 
           if (taggingResult && taggingResult.tag) {
             tagging = Object.keys(taggingResult.tag).map(function(k) {
+              // eslint-disable-next-line no-undef
               return encodeURIComponent(k) + '=' + encodeURIComponent(data[k]);
             }).join('&');
           }
 
           let encoding = headResult.ContentEncoding;
           // code-modal保存时，如果encoding=gzip，就不变更gzip，避免内容未做gzip压缩，导致sdk中的urllib响应内容解析失败
-          if(isCodeSave && encoding === 'gzip'){
-            encoding=undefined;
+          if (isCodeSave && encoding === 'gzip') {
+            encoding = undefined;
           }
 
           client3.put(key, new Buffer(content), {
@@ -1611,7 +1614,9 @@ angular.module('web').factory('ossSvs2', [
       });
     }
 
-    function _listFilesOrigion(region, bucket, key, marker = '', length = 1000) {
+    function _listFilesOrigion(region, bucket, key, marker = '', length) {
+      if (!length) length = localStorage.getItem("listObjectNum") || 500;
+      console.log('list-object-max-length', length);
       const client = getClient3({
         region,
         bucket
@@ -1689,51 +1694,6 @@ angular.module('web').factory('ossSvs2', [
 
         list(marker);
       });
-
-      return client.listV2(Object.assign({}, options, { 'continuation-token': marker }))
-          .then((resp) => {
-            const dirs = (resp.prefixes || [])
-                .filter((n) => n !== key)
-                .map((n) => {
-                  const arr = n.split('/').filter((k) => !!k);
-                  const name = arr[arr.length - 1];
-
-                  return {
-                    isFolder: true,
-                    itemType: 'folder',
-                    path: n,
-                    name: name === '/' ? name : name.replace(/\/$/, '')
-                  };
-                });
-            const objects = (resp.objects || [])
-                .filter((n) => n.name !== key)
-                .map((n) => {
-                  const arr = n.name.split('/').filter((k) => !!k);
-                  const name = arr[arr.length - 1];
-
-                  return Object.assign(n, {
-                    isFile: true,
-                    itemType: 'file',
-                    path: n.name,
-                    name: name
-                  });
-                });
-
-            return {
-              data: {
-                dirs,
-                objects
-              },
-              marker: resp.nextContinuationToken,
-              truncated: resp.isTruncated,
-              maxKeys: +resp.keyCount
-            };
-          })
-          ['catch']((e) => {
-            handleError(e);
-
-            return Promise.reject(e);
-          });
     }
 
     function listAllFiles(region, bucket, key, folderOnly) {
@@ -1997,7 +1957,7 @@ angular.module('web').factory('ossSvs2', [
         }
 
         return (
-          protocol + '//' + bucket + '.' + region + '.aliyuncs.com' + '/' + key
+          protocol + '//' + bucket + '.' + region + '.aliyuncs.com/' + key
         );
       }
 
@@ -2018,7 +1978,7 @@ angular.module('web').factory('ossSvs2', [
       }
 
       return (
-        protocol + '//' + bucket + '.' + region + '.aliyuncs.com' + '/' + key
+        protocol + '//' + bucket + '.' + region + '.aliyuncs.com/' + key
       );
     }
 
diff --git a/app/components/services/settings.js b/app/components/services/settings.js
index f2ef0896..3d689496 100644
--- a/app/components/services/settings.js
+++ b/app/components/services/settings.js
@@ -112,6 +112,16 @@ angular.module('web').factory('settingsSvs', [
           return localStorage.setItem('downloadConcurrecyPartSize', v);
         }
       },
+      listObjectNum: {
+        get: function() {
+          return parseInt(
+              localStorage.getItem('listObjectNum') || 500
+          );
+        },
+        set: function(v) {
+          return localStorage.setItem('listObjectNum', v);
+        }
+      },
       uploadAndDownloadRetryTimes: {
         get: function() {
           return parseInt(
diff --git a/app/main/files/files.js b/app/main/files/files.js
index 357d91e2..68e0e5a8 100644
--- a/app/main/files/files.js
+++ b/app/main/files/files.js
@@ -648,6 +648,7 @@ angular
                   function(result) {
                     const arr = result.data;
 
+                    // eslint-disable-next-line no-unused-expressions
                     settingsSvs.showImageSnapshot.get() == 1
                       ? signPicURL(info, arr)
                       : null;
@@ -726,8 +727,7 @@ angular
               `)
                 );
                 safeApply($scope);
-              })
-              ['finally'](() => {
+              }).finally(() => {
                 $timeout(() => {
                   isLoadingObjectSymlinkMeta = false;
                 }, 500);
diff --git a/app/main/files/transfer/uploads.html b/app/main/files/transfer/uploads.html
index 32508526..f75e394f 100644
--- a/app/main/files/transfer/uploads.html
+++ b/app/main/files/transfer/uploads.html
@@ -119,10 +119,12 @@
             {{item.status|status:1}}
             <i
               ng-if="item.message"
-              uib-tooltip="{{item.message}}"
+              uib-tooltip-template="'error-mess-tooltip-tpl.html'"
               tooltip-placement="left"
               tooltip-append-to-body="true"
               class="fa fa-info-circle"
+              style="cursor: pointer;"
+              ng-click="copyMessage(item)"
             ></i>
           </small>
           <small ng-show="item.status=='running'">
@@ -185,7 +187,14 @@
 
 <script type="text/ng-template" id="upload-path-tooltip-tpl.html">
   <div class="break text-left">
-    <div><label class="text-primary">From:</label>{{item.from.path}}</div>
-    <div><label class="text-success">To:</label>oss://{{item.to.bucket}}/{{item.to.key}}</div>
+    <div><label class="text-primary">From:&nbsp;</label>{{item.from.path}}</div>
+    <div><label class="text-success">To:&nbsp;</label>oss://{{item.to.bucket}}/{{item.to.key}}</div>
+  </div>
+</script>
+<script type="text/ng-template" id="error-mess-tooltip-tpl.html">
+  <div class="break text-left">
+    <div><label class="text-primary">Message:&nbsp;</label>{{item.message}}</div>
+    <div ng-if="item.ecCode"><label class="text-success">EC Code:&nbsp;</label>{{item.ecCode}}</div>
+    <div ng-if="item.requestId"><label class="text-success">Request Id:&nbsp;</label>{{item.requestId}}</div>
   </div>
 </script>
diff --git a/app/main/files/transfer/uploads.js b/app/main/files/transfer/uploads.js
index 2de62b91..4206302e 100644
--- a/app/main/files/transfer/uploads.js
+++ b/app/main/files/transfer/uploads.js
@@ -1,4 +1,3 @@
-
 angular.module('web').controller('transferUploadsCtrl', [
   '$scope',
   '$timeout',
@@ -43,7 +42,8 @@ angular.module('web').controller('transferUploadsCtrl', [
         );
       },
       limitToNum: 100,
-      loadMoreUploadItems: loadMoreItems
+      loadMoreUploadItems: loadMoreItems,
+      copyMessage: copyMessage
     });
 
     function loadMoreItems() {
@@ -206,5 +206,13 @@ angular.module('web').controller('transferUploadsCtrl', [
         );
       }
     }
+
+    /** 复制到剪贴板 */
+    function copyMessage(item) {
+      const { clipboard } = require('electron');
+      const { message, ecCode, requestId } = item;
+      clipboard.writeText(`Message: ${message}${ecCode ? '\nEC Code: ' + ecCode : ''}${requestId ? '\nRequest Id: ' + requestId : '' }`);
+      Toast.success(T('copy.successfully'));
+    }
   }
 ]);
diff --git a/app/main/modals/settings.html b/app/main/modals/settings.html
index d20695f6..ffffe850 100644
--- a/app/main/modals/settings.html
+++ b/app/main/modals/settings.html
@@ -385,6 +385,30 @@ <h5 class="text-primary">{{'settings.log'|translate}}</h5>
         </div>
       </div>
     </fieldset>
+    <fieldset>
+      <legend>
+        <h5 class="text-primary">{{'settings.other'|translate}}</h5>
+      </legend>
+      <div class="form-group">
+        <label class="col-sm-4 control-label">
+          <!-- 单次列举Object最大数量 -->
+          {{'settings.other.list.object.max.number'|translate}}:
+        </label>
+        <div class="col-sm-7">
+          <input
+            type="number"
+            name="listObjectNum"
+            ng-model="set.listObjectNum"
+            ng-change="setChange(form1,'listObjectNum')"
+            max="1000"
+            min="20"
+            required
+            class="form-control"
+            placeholder="20-1000"
+          />
+        </div>
+      </div>
+    </fieldset>
   </div>
   <div class="modal-footer">
     <!-- <button type="submit" class="btn btn-success btn-sm">
diff --git a/app/main/modals/settings.js b/app/main/modals/settings.js
index 5e56d201..01a0671e 100644
--- a/app/main/modals/settings.js
+++ b/app/main/modals/settings.js
@@ -1,4 +1,3 @@
-
 angular.module('web').controller('settingsCtrl', [
   '$scope',
   '$state',
@@ -40,6 +39,7 @@ angular.module('web').controller('settingsCtrl', [
         connectTimeout: settingsSvs.connectTimeout.get(),
         uploadPartSize: settingsSvs.uploadPartSize.get(),
         downloadConcurrecyPartSize: settingsSvs.downloadConcurrecyPartSize.get(),
+        listObjectNum: settingsSvs.listObjectNum.get(),
         uploadAndDownloadRetryTimes: settingsSvs.uploadAndDownloadRetryTimes.get()
       },
       reg: {
diff --git a/node/i18n/en-US.js b/node/i18n/en-US.js
index 08c9adea..80471145 100644
--- a/node/i18n/en-US.js
+++ b/node/i18n/en-US.js
@@ -130,8 +130,10 @@ module.exports = {
   "settings.uploadPartSize": "uploadpart size(M)",
   "settings.downloadConcurrecyPartSize": "download concurrency part number",
   "settings.uploadAndDownloadRetryTimes": "retry times",
+  "settings.other": "Other Settings",
+  "settings.other.list.object.max.number": "Maximum number of objects listed in a single instance",
 
-  //address bar
+  // address bar
   backward: "Backward",
   forward: "Forward",
   goUp: "Go up",
@@ -145,7 +147,7 @@ module.exports = {
   "bookmark.add.error1": "Add Bookmark failed: Exceeds the maximum limit",
   "bookmark.add.success": "Add Bookmark success",
 
-  //bucket
+  // bucket
   "bucket.add": "Create Bucket",
   "bucket.multipart": "MultiPart",
   acl: "ACL",
@@ -218,7 +220,7 @@ module.exports = {
   "simplePolicy.noauth.message3": "You are not authorized to get role list",
   "simplePolicy.success": "Apply policy successfully",
 
-  //settings
+  // settings
   "settings.maxUploadNum": "Upload tasks concurrent number",
   "settings.maxDownloadNum": "Download tasks concurrent number",
   "settings.WhetherShowThumbnail": "Whether to show the image thumbnail",
@@ -228,7 +230,7 @@ module.exports = {
   "settings.autoUpgrade": "Auto update",
   "settings.autoUpgrade.msg": "Download update package automatically",
 
-  //bookmark
+  // bookmark
   "bookmarks.title": "Bookmarks",
   time: "Time",
   "bookmarks.delete.success": "Deleted bookmark successfully",
@@ -238,7 +240,7 @@ module.exports = {
   clickToDownload: "Click to download",
   currentIsLastest: "This is the lastest version!",
 
-  //files
+  // files
   upload: "Upload",
   "folder.create": "Directory",
   "folder.create.success": "Directory created successfully",
diff --git a/node/i18n/ja-JP.js b/node/i18n/ja-JP.js
index a32eaefb..19a7a050 100644
--- a/node/i18n/ja-JP.js
+++ b/node/i18n/ja-JP.js
@@ -230,6 +230,8 @@ module.exports = {
   "settings.uploadPartSize": "スライスサイズ(M)",
   "settings.downloadConcurrecyPartSize": "ダウンロード数",
   "settings.uploadAndDownloadRetryTimes": "再試行回数",
+  "settings.other": "その他の設定",
+  "settings.other.list.object.max.number": "Objectの最大数を列挙",
 
   //bookmark
   "bookmarks.title": "ブックマーク",
diff --git a/node/i18n/zh-CN.js b/node/i18n/zh-CN.js
index 37444a26..4aca3402 100644
--- a/node/i18n/zh-CN.js
+++ b/node/i18n/zh-CN.js
@@ -31,7 +31,6 @@ module.exports = {
   "region.oss-ap-southeast-7": "泰国(曼谷)",
   "region.oss-ap-south-1": "印度(孟买)",
 
-
   "region.oss-us-west-1": "美国西部1(硅谷)",
   "region.oss-us-east-1": "美国东部1(弗吉尼亚)",
   "region.oss-eu-central-1": "德国(法兰克福)",
@@ -223,6 +222,9 @@ module.exports = {
   "settings.uploadPartSize": "分片大小(M)",
   "settings.downloadConcurrecyPartSize": "并发分片下载数",
   "settings.uploadAndDownloadRetryTimes": "重试次数",
+  "settings.other": "其他设置",
+  "settings.other.list.object.max.number": "单次列举Object最大数量",
+
   //bookmark
   "bookmarks.title": "书签管理",
   time: "时间",
diff --git a/node/ossstore/lib/download-job-util.js b/node/ossstore/lib/download-job-util.js
index 49434e21..a023acda 100644
--- a/node/ossstore/lib/download-job-util.js
+++ b/node/ossstore/lib/download-job-util.js
@@ -104,7 +104,9 @@ function getFreeDiskSize(p, fn) {
         var lastLine = arr.slice(arr.length - 1);
         lastLine = (lastLine + "").trim();
 
+        // eslint-disable-next-line no-useless-escape
         num = lastLine.match(/\s+((\d{1,3}[,\s\.])+)/)[1];
+        // eslint-disable-next-line no-useless-escape
         num = parseInt(num.replace(/[,\s\.]/g, ""));
       } catch (e) {}
       if (num != null) fn(null, num + fileSize);
diff --git a/node/ossstore/lib/upload-job-util.js b/node/ossstore/lib/upload-job-util.js
index 04139802..a1ac9d28 100644
--- a/node/ossstore/lib/upload-job-util.js
+++ b/node/ossstore/lib/upload-job-util.js
@@ -76,6 +76,7 @@ function completeMultipartUpload(self, doneParams, fn) {
   var retryTimes = 0;
   setTimeout(_dig, 10);
   function _dig() {
+    console.log("self.oss", self);
     self.oss.completeMultipartUpload(doneParams, function (err, data) {
       if (err) {
         if (err.message.indexOf("The specified upload does not exist") != -1) {
@@ -87,7 +88,7 @@ function completeMultipartUpload(self, doneParams, fn) {
             function (err2, data2) {
               //console.log('headobject: ', err2, err2.message, data);
               if (err2) {
-                fn(err2);
+                fn(err2, data2);
               } else {
                 fn(null, data2);
               }
@@ -97,7 +98,7 @@ function completeMultipartUpload(self, doneParams, fn) {
         }
 
         if (retryTimes > RETRYTIMES) {
-          fn(err);
+          fn(err, data);
         } else {
           retryTimes++;
           self._changeStatus("retrying", retryTimes);
@@ -148,7 +149,6 @@ function getUploadId(checkPoints, self, params, fn) {
             if (!self.stopFlag) _dig();
           }, 2000);
         }
-        return;
       } else {
         checkPoints.uploadId = res.UploadId;
         fn(null, res.UploadId);
@@ -195,7 +195,7 @@ function prepareChunks(filePath, checkPoints, fn) {
 
   fs.stat(filePath, function (err, state) {
     if (err) {
-      callback(err);
+      // callback(err);
       return;
     }
 
diff --git a/node/ossstore/lib/upload-job.js b/node/ossstore/lib/upload-job.js
index 2500f228..23719b5f 100644
--- a/node/ossstore/lib/upload-job.js
+++ b/node/ossstore/lib/upload-job.js
@@ -65,6 +65,8 @@ class UploadJob extends Base {
     };
 
     this.message = this._config.message;
+    this.ecCode = this._config.ecCode;
+    this.requestId = this._config.requestId;
     this.status = this._config.status || "waiting";
 
     this.stopFlag = this.status != "running";
@@ -95,6 +97,8 @@ UploadJob.prototype.start = function () {
   }
 
   self.message = "";
+  self.ecCode = "";
+  self.requestId = "";
   this.startTime = new Date().getTime();
   this.endTime = null;
   this._changeStatus("running");
@@ -756,7 +760,10 @@ UploadJob.prototype.uploadMultipart = function (checkPoints) {
       );
       if (err) {
         console.error("[" + doneParams.UploadId + "]", err, doneParams);
+        var headers = err.headers;
         self.message = err.message;
+        self.ecCode = headers["x-oss-ec"];
+        self.requestId = headers["x-oss-request-id"];
         self._changeStatus("failed");
         self.emit("error", err);
       } else {
diff --git a/node/ossstore/lib/util.js b/node/ossstore/lib/util.js
index e14fd966..dab73aef 100644
--- a/node/ossstore/lib/util.js
+++ b/node/ossstore/lib/util.js
@@ -147,7 +147,7 @@ function getBigFileMd5(p, fn) {
     md5sum.update(chunk);
   });
   stream.on("end", function () {
-    str = md5sum.digest("base64");
+    var str = md5sum.digest("base64");
     console.timeEnd("get md5 hash for [" + p + "]");
     fn(null, str);
   });
@@ -260,11 +260,11 @@ function getBufferCrc64(buffer, fn) {
   });
 }
 
-function getStreamCrc64(s, fn) {
-  CRC64.crc64Stream(s, function (err, data) {
-    fn(err, data);
-  });
-}
+// function getStreamCrc64(s, fn) {
+//   CRC64.crc64Stream(s, function (err, data) {
+//     fn(err, data);
+//   });
+// }
 
 function closeFD(fd) {
   fs.close(fd, (err) => {