iOS Amazon S3 SDK：发送到解除分配的实例的消息

概述我收到以下错误： *** -[S3PutObjectOperation_Internal respondsToSelector:]: message sent to deallocated instance 0x43c18fd0 我不太了解Zombies检查员的堆栈跟踪,我不确定这是否告诉我任何我可以解决的问题： # Address Category Event Type RefCt 我收到以下错误：

*** -[S3PutObjectoperation_Internal respondsToSelector:]: message sent to deallocated instance 0x43c18fd0

我不太了解ZombIEs检查员的堆栈跟踪,我不确定这是否告诉我任何我可以解决的问题：

#   Address category    Event Type  RefCt   Timestamp   Size    Responsible library Responsible Caller0   0xc071f60   S3PutObjectoperation_Internal   Malloc  1   00:14.903.021   48  MyApp   -[S3TransferManager upload:]1   0xc071f60   S3PutObjectoperation_Internal   Retain  2   00:14.903.032   0   Foundation  ____addOperations_block_invoke_02   0xc071f60   S3PutObjectoperation_Internal   Release 1   00:14.903.036   0   MyApp   -[S3TransferManager upload:]3   0xc071f60   S3PutObjectoperation_Internal   Retain  2   00:14.904.154   0   libsystem_sim_blocks.dylib  _Block_object_assign4   0xc071f60   S3PutObjectoperation_Internal   Retain  3   00:14.904.163   0   libsystem_sim_blocks.dylib  _Block_object_assign5   0xc071f60   S3PutObjectoperation_Internal   Release 2   00:14.904.164   0   Foundation  __destroy_helper_block_4746   0xc071f60   S3PutObjectoperation_Internal   Retain  3   00:14.906.549   0   MyApp   -[S3PutObjectoperation_Internal start]7   0xc071f60   S3PutObjectoperation_Internal   Release 2   00:14.906.554   0   MyApp   -[S3PutObjectoperation_Internal start]8   0xc071f60   S3PutObjectoperation_Internal   Release 1   00:14.907.624   0   MyApp   __destroy_helper_block_9   0xc071f60   S3PutObjectoperation_Internal   Retain  2   00:15.243.299   0   MyApp   -[S3PutObjectoperation_Internal finish]10  0xc071f60   S3PutObjectoperation_Internal   Retain  3   00:15.243.302   0   MyApp   -[S3PutObjectoperation_Internal finish]11  0xc071f60   S3PutObjectoperation_Internal   Release 2   00:15.243.307   0   MyApp   -[S3PutObjectoperation_Internal finish]12  0xc071f60   S3PutObjectoperation_Internal   Release 1   00:15.243.330   0   MyApp   -[S3PutObjectoperation_Internal finish]13  0xc071f60   S3PutObjectoperation_Internal   Release 0   00:15.244.420   0   Foundation  __release_object_op14  0xc071f60   S3PutObjectoperation_Internal   ZombIE  -1  00:15.386.107   0   MyApp   -[S3Response connection:dIDSendBodyData:totalBytesWritten:totalBytesExpectedToWrite:]

应用程序上传照片时会发生此错误. Photo对象使用并实现以下方法：

-(voID)request:(AmazonServiceRequest *)request dIDSendData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite{  NSLog(@"dIDSendData called: %d - %d / %d",bytesWritten,totalBytesWritten,totalBytesExpectedToWrite);  self.transferProgress += bytesWritten;  float p = (float) self.transferProgress / self.uploadSize;  self.uploadProgress = [NSNumber numberWithfloat:p];}-(voID)request:(AmazonServiceRequest *)request dIDCompleteWithResponse:(AmazonServiceResponse *)response{  NSLog(@"dIDCompleteWithResponse called.");}-(voID)request:(AmazonServiceRequest *)request dIDFailWithError:(NSError *)error{  NSLog(@"dIDFailWithError called: %@",error);}

据我所知,这是应用程序中唯一一个S3请求与任何其他对象/实例通信的点.知道是什么导致了这个错误吗？

解决方法 我认为这是AWS SDK中的一个错误.我不确定错误的确切位置,但是如果响应是服务异常(并且可能只与S3TransferManager结合使用),它会被请求重试触发.

我不想禁用所有重试,所以我通过强制不重试服务异常来修复此问题.您可以使用AmazonS3ClIEnt的子类来覆盖一个方法,如下所示：

- (BOol)shouldRetry:(AmazonServiceResponse *)response exception:(NSException *)exception{    // There is some kind of BUG that is triggered on request retrIEs when S3 requests    // return an explicit service exception (e.g.,auth token expired). In these cases    // we force no retry to avoID the BUG.    NSException *exceptionHolder = response.exception;    if(exceptionHolder == nil)    {        exceptionHolder = exception;    }    if([exceptionHolder isKindOfClass:[AmazonServiceException class]])    {        return NO;    }    return [super shouldRetry:response exception:exception];}

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