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Posted to dev@commons.apache.org by Johan Lindquist <jo...@kawoo.co.uk> on 2004/06/15 16:34:49 UTC
[VFS] Using sftp and vfs ...
Hi,
I am using the VFS library to connect to a remote SFTP server and it is
working fine but it seems there is a thread hanging in the jsch libraries
(assuming it is the SSH session) ... Even if I call close on the file
objects the thread doesn't stop - is there another way to shut down the
remote jsch session?
Thanks,
Johan
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Re: [VFS] Using sftp and vfs ...
Posted by Johan Lindquist <jo...@kawoo.co.uk>.
Yes, sounds good - cause I was just thinking that what if I have two users
concurrently calling the VFS.getManager(), do some operation and then
close the FileSystemManager, there is a chance one of them will get their
session closed half-way through the operation? cleanup would definately
be a better option.
On Wed, 16 Jun 2004 11:50:44 +0200, Mario Ivankovits <im...@apache.org>
wrote:
> Johan Lindquist wrote:
>
>> Would it be possible though to have a file system option that would
>> determine if the session is to be closed if all files are detached for
>> example? I have not had a chance to look in detail 'under the hood'
>> of VFS yet, so i don't know if this is possible.
>
> This is exactly what i am thinking about.
> Maybe a method called "cleanup" on the manager which will free unused
> resources (in opposite to close which will close and free all resources).
>
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Re: [VFS] Using sftp and vfs ...
Posted by Mario Ivankovits <im...@apache.org>.
Johan Lindquist wrote:
> Would it be possible though to have a file system option that would
> determine if the session is to be closed if all files are detached
> for example? I have not had a chance to look in detail 'under the
> hood' of VFS yet, so i don't know if this is possible.
This is exactly what i am thinking about.
Maybe a method called "cleanup" on the manager which will free unused
resources (in opposite to close which will close and free all resources).
--
Mario
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Re: [VFS] Using sftp and vfs ...
Posted by Johan Lindquist <jo...@kawoo.co.uk>.
Thanks for that Mario, will give that a go as that is pretty much the
scenario i am using it right now - connect, do some file op and
disconnect, possibly reconnecting later as a different user ...
Would it be possible though to have a file system option that would
determine if the session is to be closed if all files are detached for
example? I have not had a chance to look in detail 'under the hood' of
VFS yet, so i don't know if this is possible.
Thanks,
Johan
On Tue, 15 Jun 2004 21:21:57 +0200, Mario Ivankovits <im...@apache.org>
wrote:
> Johan Lindquist wrote:
>
>> I am using the VFS library to connect to a remote SFTP server and it
>> is working fine but it seems there is a thread hanging in the jsch
>> libraries (assuming it is the SSH session) ... Even if I call close on
>> the file objects the thread doesn't stop - is there another way to
>> shut down the remote jsch session?
>
>
> I know, this is not a solution (and maybe not even a workaround for you)
> - the trick is to close the FileSystemManager, if you use
> VFS.getManager() you could cast the returned FileSystemManager and then
> close it. Maybe you instantiate VFS in some other way, however it should
> be possible to cast anyway.
>
> StandardFileSystemManager fsm = (StandardFileSystemManager)
> VFS.getManager();
> fsm.close();
>
> But this will close all files and resources allocated by this instance
> !!!
>
> I will have a look how to do this more general (and maybe
> automatically), but this might take a while.
>
> --
> Mario
>
>
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>
>
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Re: [VFS] Using sftp and vfs ...
Posted by Mario Ivankovits <im...@apache.org>.
Johan Lindquist wrote:
> I am using the VFS library to connect to a remote SFTP server and it
> is working fine but it seems there is a thread hanging in the jsch
> libraries (assuming it is the SSH session) ... Even if I call close
> on the file objects the thread doesn't stop - is there another way to
> shut down the remote jsch session?
I know, this is not a solution (and maybe not even a workaround for you)
- the trick is to close the FileSystemManager, if you use
VFS.getManager() you could cast the returned FileSystemManager and then
close it. Maybe you instantiate VFS in some other way, however it should
be possible to cast anyway.
StandardFileSystemManager fsm = (StandardFileSystemManager)
VFS.getManager();
fsm.close();
But this will close all files and resources allocated by this instance !!!
I will have a look how to do this more general (and maybe
automatically), but this might take a while.
--
Mario
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