[英]Problems when uploading large files to Amazon S3
我尝试使用 Amazon-SDK(Java) 示例代码S3TransferProgressSample.java
将大文件上传到 Amazon-S3 存储( 也在此处发布在 AWS 文档上)。
但是当我尝试上传 11 GB 文件时,上传在不同的点卡住并显示错误消息:
Unable to upload file to Amazon S3: Unable to upload part: Unable toexecute HTTP request: Unbuffered entity enclosing request can not be repeated " (attached screenshot).
看起来 IOException 发生后 SDK 无法重试请求(见下文)。
有没有人遇到这个? 解决此问题的最佳做法是什么? 任何代码表示赞赏。
INFO: Received successful response: 200, AWS Request ID:
2B66E7669E24DA75<br> Jan 15, 2011 6:44:46 AM
com.amazonaws.http.HttpClient execute<br> INFO: Sending Request: PUT
s3.amazonaws.com /test_file_upload/autogenerated.txt Parameters:
(uploadId:
m9MqxzD484Ys1nifnX._IzJBGbCFIoT_zBg0xdd6kkZ4TAtmcG0lXQOE.LeiSEuqn6NjcosIQLXJeKzSnKllmw--, partNumber: 1494, )<br> Jan 15, 2011 6:45:10 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
**INFO: I/O exception (java.net.SocketException) caught when processing request: Connection reset by peer: socket write error**<br>
Jan 15, 2011 6:45:10 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
INFO: Retrying request<br> Jan 15, 2011 6:45:12 AM
com.amazonaws.http.HttpClient execute<br> WARNING: Unable to execute
HTTP request: Unbuffered entity enclosing request can not be
repeated.<br> Jan 15, 2011 6:45:12 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
**INFO: I/O exception (java.net.SocketException) caught when processing request: Connection reset by peer: socket write error**<br>
Jan 15, 2011 6:45:12 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
INFO: Retrying request<br> Jan 15, 2011 6:45:13 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
**INFO: I/O exception (java.net.SocketException) caught when processing request: Connection reset by peer: socket write error**<br>
Jan 15, 2011 6:45:13 AM
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry<br>
INFO: Retrying request<br> Jan 15, 2011 6:45:13 AM
com.amazonaws.http.HttpClient execute<br>
**WARNING: Unable to execute HTTP request: Unbuffered entity enclosing request can not be repeated.**<br> Jan 15, 2011 6:45:14 AM
com.amazonaws.http.HttpClient execute<br> WARNING: Unable to execute
HTTP request: Unbuffered entity enclosing request can not be
repeated.<br> Jan 15, 2011 6:45:14 AM com.amazonaws.http.HttpClient
execute<br> WARNING: Unable to execute HTTP request: Unbuffered entity
enclosing request can not be repeated.<br> Jan 15, 2011 6:45:14 AM
com.amazonaws.http.HttpClient execute<br> WARNING: Unable to execute
HTTP request: Unbuffered entity enclosing request can not be
repeated.<br> Jan 15, 2011 6:45:15 AM com.amazonaws.http.HttpClient
execute<br> WARNING: Unable to execute HTTP request: Unbuffered entity
enclosing request can not be repeated.<br> Jan 15, 2011 6:45:16 AM
com.amazonaws.http.HttpClient execute<br> WARNING: Unable to execute
HTTP request: Unbuffered entity enclosing request can not be
repeated.<br> Jan 15, 2011 6:45:16 AM
com.amazonaws.http.HttpClient
execute<br> WARNING: Unable to execute HTTP request: Unbuffered entity
enclosing request can not be repeated.<br> Jan 15, 2011 6:45:17 AM
com.amazonaws.http.HttpClient execute<br> WARNING: Unable to execute
HTTP request: Unbuffered entity enclosing request can not be
repeated.<br> Jan 15, 2011 6:45:19 AM com.amazonaws.http.HttpClient
execute<br> WARNING: Unable to execute HTTP request: Unbuffered entity
enclosing request can not be repeated.<br> Jan 15, 2011 6:45:19 AM
com.amazonaws.http.HttpClient execute<br> ....<br> Jan 15, 2011
6:45:21 AM com.amazonaws.http.HttpClient handleResponse<br>
**INFO: Received successful response: 204, AWS Request ID: E794B8FCA4C3D007**<br> Jan 15, 2011 6:45:21 AM
com.amazonaws.http.HttpClient execute<br> ...<br> Jan 15, 2011 6:45:19
AM com.amazonaws.http.HttpClient execute<br> INFO: Sending Request:
DELETE s3.amazonaws.com /test_file_upload/autogenerated.txt
Parameters:<br> ...<br> Jan 15, 2011 6:47:01 AM
com.amazonaws.http.HttpClient handleErrorResponse<br> INFO: Received
error response: Status Code: 404, AWS Request ID: 0CE25DFE767CC595,
AWS Error Code: NoSuchUpload, AWS Error Message: The specified upload
does not exist. The upload ID may be invalid, or the upload may have
been aborted or completed.<br>
尝试使用低级 API 。
当出现问题时,这将使您有更多的控制权,因为它们可能与 11GB 的文件有关。
进出 S3 的请求有时会失败。 使用低级 API,如果上传失败,您将能够重试上传的一部分。
稍微重构 Amazon 文档中的示例:
// Step 2: Upload parts.
long filePosition = 0;
for (int i = 1; filePosition < contentLength; i++) {
// Last part can be less than 5 MB. Adjust part size.
partSize = Math.min(partSize, (contentLength - filePosition));
// Create request to upload a part.
UploadPartRequest uploadRequest = new UploadPartRequest()
.withBucketName(existingBucketName).withKey(keyName)
.withUploadId(initResponse.getUploadId()).withPartNumber(i)
.withFileOffset(filePosition)
.withFile(file)
.withPartSize(partSize);
// repeat the upload until it succeeds.
boolean anotherPass;
do {
anotherPass = false; // assume everythings ok
try {
// Upload part and add response to our list.
partETags.add(s3Client.uploadPart(uploadRequest).getPartETag());
} catch (Exception e) {
anotherPass = true; // repeat
}
} while (anotherPass);
filePosition += partSize;
}
// Step 3: complete.
CompleteMultipartUploadRequest compRequest = new
CompleteMultipartUploadRequest(
existingBucketName,
keyName,
initResponse.getUploadId(),
partETags);
s3Client.completeMultipartUpload(compRequest);
注意:我不是 Java 开发人员,所以我可能会在语法上搞砸,但希望这能让你朝着正确的方向前进。 此外,如果上传反复失败,您将需要添加一个“重试计数器”以防止无限循环。
附带说明一下,如果您尝试对已在分段上传下的密钥进行分段上传,则可能会引发 404 错误。
我认为您应该尝试 AWS 支持的 Multipart API。
看看这个: http : //docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/transfer/TransferManager.html
我想对 Geoff Appleford 的回答添加评论,但 SO 不允许我这样做。 一般来说,他使用低级 API 的答案工作正常,但即使我们现在有一个 do-while 循环,for 循环的设计方式也有内置的重试逻辑。 在他的代码片段中,文件位置仅在成功时才会增加,否则您将再次上传同一部分。
Geoff Appleford 的回答对我有用。 但是,我会在 while 循环控制语句中添加 && retryCount < MAX_RETRIES,并在 while 中捕获的每个异常上增加 retryCount。
阿维亚德
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.