After more experimentation...
ChannelSftp.get(src, dest) performs as well as command-line sftp.
However, ChannelSftp.get(src) doesn't perform that well. I need to use this
version because I'm delivering the files directly to Amazon S3. And I don't
want to store the files locally.
The InputStream returned by ChannelSftp.get(src) appears to be a different
implementation than the InputStream used internally by ChannelSftp.get(src,
dest).
If I wrap the InputStream in a BufferedInputStream with a large buffer (e.g.
131072) performance is better. But it's takes about 5 times as long as using
ChannelSftp.get(src, dest) directly.
Any thoughts?
Thanks again.
On 4/11/12 9:35 AM, "Frenkiel, David" <[email protected]>
wrote:
Hi All.
I'm using JSch (version 0.1.47) to download some large files via SFTP.
Everything works great but the transfer rates are really low. With command-line
SFTP it's 10 times faster.
Is there some configuration that will speed things up?
I'm on Mac OS 10.6.8 with Java 1.6.0_29.
Thanks very much.
David Frenkiel
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