[Swift-devel] SSH support

[Mihael Hategan]

On Thu, 2008-04-10 at 07:31 -0500, Michael Wilde wrote:
> I just tried this for the first time and I cant get it to work, Mihael. 
> Can you take a look?
> 
> I get these errors:
> 
> 2008-04-09 23:04:47,221-0500 DEBUG TaskImpl Task(type=FILE_OPERATION, 
> identity=urn:0-1207800286502) setting status to Failed 
> org.globus.cog.abstraction.impl.file.FileResourceException: Error while 
> communi\
> cating with the SSH server on login.ci.uchicago.edu:22
> Could not initialize shared directory on login.ci
> ...
> Caused by: org.globus.cog.abstraction.impl.file.FileResourceException: 
> Error while communicating with the SSH server on login.ci.uchicago.edu:22
> ...
> Caused by: 
> org.globus.cog.abstraction.impl.common.task.TaskSubmissionException: 
> org.globus.cog.abstraction.impl.file.FileResourceException: Error while 
> communicating with the SSH server on login.ci.uchica\
> go.edu:22
> Caused by: org.globus.cog.abstraction.impl.file.FileResourceException: 
> Error while communicating with the SSH server on login.ci.uchicago.edu:22
> Caused by: java.lang.NullPointerException
> 
> 
> All the related files and logs are in ~benc/swift/logs/wilde/run354

I'll take a look.

> 
> Im running swift on terminable, with a 1-job test workflow to login.ci.
> 
> I created a new rsa key, with a passphrase, and added it to 
> authorized-keys. I tested the key and can manually ssh to login.ci from 
> terminable with it, and verified the passphrase. (see file keytest)
> 
> Also, once we have this working, can I eliminate the passphrase from 
> auth.defaults if I use an agent?

No. The agent is not supported.

> 
> Thanks,
> 
> - Mike
> 
> 
> 
> On 11/23/07 3:42 PM, Mihael Hategan wrote:
> > I've updated the SSH provider in cog to do a few things:
> > - make better use of connections (cache them). SSH has this nifty thing:
> > On one connection you can configure multiple independent channels
> > (OpenSSH servers seem to support up to 10 such channels per connection).
> > With this you get up to 10 independent shells without authenticating
> > again.
> > - access remote filesystems (a file op provider) with SFTP
> > - get default authentication information from a file
> > (~/.ssh/auth.defaults). I attached a sample. I need to document this.
> > 
> > I also added a filesystem element in the site catalog, which works in a
> > similar way to the execution element:
> >  <pool handle="plussed" sysinfo="INTEL32::LINUX">
> >     <filesystem provider="ssh" url="plussed.mcs.anl.gov"
> > storage="/homes/hategan/tmp" />
> >     <execution provider="ssh" url="plussed.mcs.anl.gov" />
> >     <workdirectory>/homes/hategan/tmp</workdirectory>
> >   </pool>
> > 
> > That basically allows Swift to work with SSH.
> > 
> > 
> > ------------------------------------------------------------------------
> > 
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> > Swift-devel at ci.uchicago.edu
> > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>