[Swift-devel] SSH support

[Michael Wilde]

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

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?

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.
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Swift-devel mailing list
> Swift-devel at ci.uchicago.edu
> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel