Hi,
I need s3 sync in java. So I implemented it using AmazonS3Client in java. I
found the uploading/downloading speed is significantly worse than s3cmd.
The bottleneck is inside AmazonS3Client, even with tuned
ClientConfiguration. The code looks like:
AmazonS3 s3 = new AmazonS3Client(new AWSCredentials() {
@Override
public String getAWSAccessKeyId() {
return null;
}
@Override
public String getAWSSecretKey() {
return null;
}
},
new ClientConfiguration()
.withMaxConnections(200)
.withProtocol(Protocol.HTTP)
.withSocketTimeout(300 * 1000)
.withSocketBufferSizeHints(4096 * 1000, 4096 * 1000));
I tried different values for these parameters. I read s3cmd's code, but
didn't find much clues why s3cmd is significantly faster. Can anyone give
me some advice?
Thanks!
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