我正在尝试从7台计算机上载大量文件。 在每台机器上,我运行6个线程以上传到S3中。 当我从一台计算机上运行上载时,它工作正常,但是当我在7台计算机中运行时,它开始出现故障。
我在其余机器上都遇到错误。
错误-AmazonClientException com.amazonaws.SdkClientException:无法执行HTTP请求:等待池中的连接超时
我上传到S3的小文件总数= 1659328
每个线程中的记录数= 276554
那我必须关闭TransferManager吗?如果是,那我应该如何关闭它?我的应用程序是多线程的。当我调用tm.shutdownNow();
时,其他线程将无法使用它。
这是我要上传到S3中的代码。
AWSCredentials credential = new ProfileCredentialsProvider("skjfffkjg-Prod-ServiceUser").getCredentials();
AmazonS3Client s3Client = (AmazonS3Client) AmazonS3ClientBuilder.standard().withRegion("us-east-1")
.withCredentials(new AWSStaticCredentialsProvider(credential)).withForceGlobalBucketAccessEnabled(true)
.build();
s3Client.getClientConfiguration().setMaxConnections(100);
上传到S3方法
public void uploadToToS3() {
_logger.info("Number of record to be processed in current thread: : " + records.size());
TransferManager tm = new TransferManager(s3Client);
MultipleFileUpload upload = tm.uploadFileList(bucketName, "", new File(fileLocation), records);
if (upload.isDone() == false) {
System.out.println("Transfer: " + upload.getDescription());
System.out.println(" - State: " + upload.getState());
System.out.println(" - Progress: " + upload.getProgress().getBytesTransferred());
}
try {
upload.waitForCompletion();
} catch (AmazonServiceException e1) {
_logger.error("AmazonServiceException " + e1.toString());
} catch (AmazonClientException e1) {
_logger.error("AmazonClientException " + e1.toString());
} catch (InterruptedException e1) {
_logger.error("InterruptedException " + e1.toString());
}
System.out.println("Is Upload completed Successfully ="+upload.isDone());
for (File file : records) {
try {
Files.delete(FileSystems.getDefault().getPath(file.getAbsolutePath()));
} catch (IOException e) {
_logger.error("IOException in file delete: " + e.toString());
System.exit(1);
_logger.error("IOException: " + e.toString());
}
}
_logger.info("Calling Transfer manager shutdown");
// tm.shutdownNow();
}
我是否必须关闭任何内容才能顺利上传?
答案 0 :(得分:0)
拥有S3对象时,需要中止并关闭它-在中止打开的连接或关闭文件读取器等时
因此,您需要确保正确关闭对象请求。 顺便说一句,增加最大连接数可能不是解决此问题的最佳方法。
有一个AWS API,允许中止S3操作。我相信您需要添加“ finally”块,以便在异常期间控制上传。
以下是我要使用的代码段:
public void uploadToToS3() {
_logger.info("Number of record to be processed in current thread: : " + records.size());
TransferManager tm = new TransferManager(s3Client);
MultipleFileUpload upload = tm.uploadFileList(bucketName, "", new File(fileLocation), records);
if (upload.isDone() == false) {
System.out.println("Transfer: " + upload.getDescription());
System.out.println(" - State: " + upload.getState());
System.out.println(" - Progress: " + upload.getProgress().getBytesTransferred());
}
try {
upload.waitForCompletion();
} catch (AmazonServiceException e1) {
_logger.error("AmazonServiceException " + e1.toString());
} catch (AmazonClientException e1) {
_logger.error("AmazonClientException " + e1.toString());
} catch (InterruptedException e1) {
_logger.error("InterruptedException " + e1.toString());
}
// ************ THIS IS THE MODIFICATION ************
finally {
upload.getSubTransfers().forEach(s -> s.abort());
}
// ***************************************************
System.out.println("Is Upload completed Successfully ="+upload.isDone());
for (File file : records) {
try {
Files.delete(FileSystems.getDefault().getPath(file.getAbsolutePath()));
} catch (IOException e) {
_logger.error("IOException in file delete: " + e.toString());
System.exit(1);
_logger.error("IOException: " + e.toString());
}
}
_logger.info("Calling Transfer manager shutdown");
// tm.shutdownNow();
}