AWSS3TransferUtility停止随机上传，没有错误

问题描述

使用AWSS3TransferUtility将视频上传到Amazon S3时，我遇到一个奇怪的问题。实际上，我正在以5mb的块上传视频。有时我意识到上传停止随机工作，没有任何错误消息。即使在强行终止应用程序并重新开始上传之后，仍然无法正常工作。它仅在我从手机删除应用程序并重新安装时才有效。 这是我使用AWSS3TransferUtility上传块的代码

// ChunkUploadRequest.com 
    -(void)registerForUploadProgress{
        __weak ChunkUploadRequest *uploadReqObj = self;
        NSDictionary *videoInfoDic = _videoDic;
        self.progressBlock = ^(AWSS3TransferUtilityTask *task,nsprogress *progress) {
            [uploadReqObj  updatePogressWithVideoInfo:videoInfoDic didSendData:progress.completedUnitCount totalBytesWritten:progress.completedUnitCount totalBytesExpectedToWrite:0 ignoreUpdateCondition:YES];
        };
        expression.progressBlock = self.progressBlock;
    }
    
    -(void)instantiateAWSS3TransferUtility{
        if (transferUtility == nil) {
            //transferUtility =  [AWSS3TransferUtility S3TransferUtilityForKey:appDelegate.AMAZON_ACCESS_KEY_ID];
            transferUtility = [AWSS3TransferUtility defaultS3TransferUtility:^(NSError * _Nullable error) {
                NSLog(@"error description: %@",error.description);
            }];
            [self enumerateUploadSuspended];
        }
      
    }
    
    -(void)enumerateUploadSuspended{
        
        __weak ChunkUploadRequest *weakSelf = self;
        [transferUtility enumeratetoAssignBlocksForUploadTask:^(AWSS3TransferUtilityUploadTask * _Nonnull uploadTask,AWSS3TransferUtilityProgressBlock  _Nullable __autoreleasing * _Nullable uploadProgressBlockReference,AWSS3TransferUtilityUploadCompletionHandlerBlock  _Nullable __autoreleasing * _Nullable completionHandlerReference) {
            *uploadProgressBlockReference = weakSelf.progressBlock;
            *completionHandlerReference = weakSelf.completionHandler;
            
        } downloadTask:nil];
       
    }
    
    -(void)registerForUploadCompleted{
        __weak ChunkUploadRequest *weakSelf = self;
        self.completionHandler = ^(AWSS3TransferUtilityUploadTask *task,NSError *error) {
            if (!error) {
                Nsstring *methodName=[[weakSelf requestOptions] valueForKey:kMethodNameKey];
                if([methodName isEqualToString:kMethodNameUploadAudioComment] && [self requestStatus] == UploadRequestStatusuploadingAudioComments)
                {
                    Nsstring *managedobjectID = [[weakSelf requestOptions] valueForKey:kManagedobjectIDKey];
                    if(managedobjectID)
                    {
                        [weakSelf audioCommentUploadedWithManagedobjectID:managedobjectID];
                    }
                    else
                    {
                        [weakSelf uploadAudioComments];
                    }
                }
                else{
                    if([methodName isEqualToString:kMethodNameUploadThumbnail])
                    {
                        if([self requestStatus]==UploadRequestStatusuploadingThumbnail)
                        {
                            [weakSelf setRequestStatus:UploadRequestStatusThumbnailUploaded];
                        }
                    }else{
                        [weakSelf setRequestStatus:uploadRequestStatusChunkUploadCompleted];
                        [Utils removeFileAtPath:[weakSelf.requestOptions valueForKey:@"chunkPath"]];
                    }
                    
                    [weakSelf startUploadingParts];
                }
            }
            else{
                NSLog(@"error %@",error.localizedDescription);
            }
            
        };
    }
    
    -(void)startVideoUploading {
        expression = [AWSS3TransferUtilityUploadExpression new];
        expression.progressBlock = self.progressBlock;
        if(uploadTask){
            [uploadTask cancel];
        }
        NSURL *chunkFilePathUrl = [NSURL fileURLWithPath:[_requestOptions valueForKey:@"chunkPath"]];
        Nsstring *folderName=[_requestOptions objectForKey:kUploadRequestFolderNameKey];
        Nsstring *amazonUploadVideoPath =   [Nsstring stringWithFormat:@"temp/%@/%@/%@/%@",[_requestOptions objectForKey:@"account_id"],[_requestOptions objectForKey:@"user_id"],folderName,[[_requestOptions valueForKey:@"chunkPath"]lastPathComponent]];
        [[transferUtility uploadFile:chunkFilePathUrl
                              bucket:AMAZON_BUCKET
                                 key:amazonUploadVideoPath
                         contentType:@"application/octet-stream"
                          expression:expression
                   completionHandler:self.completionHandler] continueWithBlock:^id(AWSTask *task) {
            if (task.error) {
                NSLog(@"Error: %@",task.error);
            }
            if (task.result) {
                uploadTask = task.result;
                NSLog(@"%ld",(long)uploadTask.status);
               
                [_requestOptions setobject:uploadTask forKey:kUploadTaskKey];
            }
            return nil;
        }];
    }
    
    - (void) startUploading{
        
    #ifdef kWriteLogs
        [AppDelegate writeLocationToLogFile:[Nsstring stringWithFormat:@"startUploading: %@",_requestOptions]];
    #endif
        
        shouldUpload=YES;
        _bytesuploaded=0;
        if([self requestType] == UploadRequestTypeVideo)
        {
            [self setRequestStatus:UploadRequestStatusstarted];
            [_requestOptions setValue:kMethodNameUploadVideoClip forKey:kMethodNameKey];
        }
        _isuploading=YES;
        [self startVideoUploading];
        
        if([self requestType] == UploadRequestTypeVideo)
        {
            appDelegate.shouldUpdateProgress=YES;
            [[NSNotificationCenter defaultCenter] postNotificationName:kSibmeVideoUploadStartednotificationKey object:nil userInfo:_requestOptions];
        }
    }

我正在从ChunkUploadManager类中调用上述类。这是ChunkUploadManager类的调用

 - (void) startUploadingNextVideoInQueue
{
    
#ifdef kWriteLogs
    [AppDelegate writeLocationToLogFile:@"startUploadingNextVideoInQueue:"];
#endif
    
    for(ChunkUploadRequest *request in uploadRequestsDictionary.allValues)
    {
#ifdef kWriteLogs
        [AppDelegate writeLocationToLogFile:[Nsstring stringWithFormat:@"startUploadingNextVideoInQueue request: %@",request.requestOptions]];
#endif
        if(request.requestStatus==UploadRequestStatusNotStarted)
        {
            [request instantiateAWSS3TransferUtility];
            [request registerForUploadCompleted];
            [request registerForUploadProgress];
            [request startUploading];
            _isuploading=YES;
            break;
        }
    }
}

解决方法

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