A local user id specified in a ws-gram job description seems not
to be used by globusrun-ws when it uses gridftp to stream output.

Streaming only works if the username specified in the localUserId
element is the first one in the comma separated mapping to a DN
in the grid-mapfile.

Otherwise output created by a job and the streaming of this
output is done with different local user ids: the job is executed
under the specified local user id, and the streaming seems to happen
with the first user id belonging to a DN in the grid-mapfile

This causes authorization problems like

freitag@udo-gt01:~/jobs/xml/whoami> globusrun-ws  -submit -F
udo-gt01.grid.uni-dortmund.de -Ft PBS  -f whoami_dt.xml -s
Delegating user credentials...Done.
Submitting job...Done.
Job ID: uuid:0e4e7970-86c8-11dc-b851-0050560bd129
Termination time: 10/31/2007 09:11 GMT
Current job state: Pending
Current job state: Active
Current job state: CleanUp-Hold
globusrun-ws: ignoring error while streaming

gsiftp://udo-gt01.grid.uni-dortmund.de:2811/home/dt0031/0e4e7970-86c8-11dc-b851-0050560bd129.0.stdout:
globus_ftp_client: the server responded with an error
500 500-Command failed. : globus_l_gfs_file_open failed.
500-globus_xio: Unable to open file
/home/dt0031/0e4e7970-86c8-11dc-b851-0050560bd129.0.stdout
500-globus_xio: System error in open: Permission denied
500-globus_xio: A system call failed: Permission denied
500 End.

globusrun-ws: ignoring error while streaming

gsiftp://udo-gt01.grid.uni-dortmund.de:2811/home/dt0031/0e4e7970-86c8-11dc-b851-0050560bd129.0.stderr:
[globus_ftp_control]:globus_ftp_control_data_connect_read():transfer handle
does not exist
Current job state: CleanUp
Current job state: Failed
Destroying job...Done.
Cleaning up any delegated credentials...Done.

Note that currently just executing a job under a local user id, which
is not the first local user id entry of a mapping in the grid-mapfile,
without streaming output fails.
So the example above worked only with a patch provided by Mike.
See bug 5457 for this.
Mikes fix has not yet been committed to cvs.