Re: [Hypercontent-users] using SCP

[Alex V. <av...@co...>]

Juris,
	You can try SCP in JSch, but after spending another day with it I have 
found that the SFTP implementation was very poor; much slower than 
j2ssh, especially the SFTP get command.  I have made improvements, 
which I will submit back to the JCsh project, so that it is now perhaps 
20% faster than j2ssh for both SFTP puts and gets.  You will see in the 
updated JCshFileSystemImpl that I have a method "storeSCP" which was an 
attempt to use SCP for puts.  It is much slower than the SFTP 
implementation, but perhaps you can look at that as a starting point 
for implementing with SCP. It was copied and pasted from the SCP code 
in Ant. I suspect we may not be able to achieve better performance with 
SCP and JCsh, because the principal performance benefit of SCP is 
supposedly that it runs on the SSH1 protocol, whereas JCsh only 
implements the slower SSH2.

The jcsh jar and JCshFileSystemImpl are updated in CVS with the 
changes.  If you were denied project access when you tried to change 
the classname, you should check the logs for an error; chances are the 
classname was not correctly spelled, or there was an instantiation 
error.

Cheers,
	Alex

On Sep 24, 2004, at 9:07 AM, sd...@la... wrote:

> Hello, Alex!
>
> We've got an idea of using SCP protocol using Java Secure Channel(jsch)
> distribution. That would work faster than SFTP in hyperContent1.4. 
> What do you
> think  of rewriting SFTPFileSystemImpl possibility to use SCP protocol?
>
>
> Thanks,
> Juris Treibahs
>
>
>
>
>
>
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