you can't compare sftp with rsync
rsync calculates the incremental changes it must send over the wire, sftp
will always send the whole file, no matter it's overwriting the same file
on the other side
you can compare jsch with native sftp, but I believe sftp will still be
faster for obvious reasons
[]
Leo
On Wed, Jul 13, 2016 at 6:59 PM, Luís Lobo <lfl...@gmail.com> wrote:
> Hi all.
>
> I'm trying to transfer a large number of small files to a remote server
> (with reasonable latency) using JSch.
>
> The code I'm using creates a Session and a ChannelSftp and then iterates
> over the local files (some times thousands) to transfer them to the server,
> with something like (I omitted exception handling for simplicity):
>
> Session session=...;
> ChannelSftp sftp=(ChannelSftp)session.openChannel("sftp");
> for(Path path:...){
> sftp.put(path.toString(),
> String.format("/destination/%s",path.getFileName().toString()));
> }
> sftp.disconnect();
> session.disconnect();
>
>
> The problem is this is very slow (sometimes *it takes hours*) compared
> with the something like:
>
> rsync -avu /local/<some glob> server:/destination/ # takes seconds
>
> Is there any faster way to transfer large number of small files with JSch?
>
> Regards,
> LL
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and protocols
> are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning
> reports.http://sdm.link/zohodev2dev
> _______________________________________________
> JSch-users mailing list
> JSch-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jsch-users
>
>
------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
_______________________________________________
JSch-users mailing list
JSch-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jsch-users
