You can specify the WAIT option on the PROCESS START request so that the
request doesn't complete until the process has completed. For example:
$request = 'START SHELL COMMAND xyz RETURNSTDOUT STDERRTOSTDOUT WAIT'
$result = $handle->submit("Machine1", "PROCESS", $request);
# The PROCESS START request won't return until the process has
completed.
See example 3 in section "3.1.2.2 STAF::STAFHandle::submit" in the STAF
Perl User's Guide which submits a PROCESS START request and WAITs for it
to complete.
If you wanted to run the processes in parallel on the different machines,
you would have to submit the PROCESS START requests in parallel (e.g.
using different threads).
Note that writing a STAX job (instead of writing a Perl program) makes
this very easy with the <paralleliterate> element and the <process>
element. See the STAX User's Guide for more information on STAX if you're
interested.
Or, instead of using the WAIT option on the PROCESS START request, you can
use the NOTIFY ONEND option on the PROCESS START request to specify that
you want to send a notification when this process ends. The
STAF/Process/End notification message will be sent to the queue of the
handle that submitted the request and you can then use the QUEUE service
to GET a messages off your queue.
--------------------------------------------------------------
Sharon Lucas
IBM Austin, [EMAIL PROTECTED]
(512) 838-8347 or Tieline 678-8347
"Avijit Roy" <[EMAIL PROTECTED]>
10/15/2008 04:08 PM
To
<staf-users@lists.sourceforge.net>
cc
Subject
[staf-users] Is there any way to track submitted request status completion
with basic STAF
Hi,
I am trying to execute some process on 3 different machines from one of
the driver machine. The main goal is after completion the tasks on three
different machines, I want to copy the result file from those three
machines into driver machine and compute the result.
I am using STAF and PERL to do the basic prototype.
My question is after submitting the task using STAF, is there any way to
check that submitted tasks has completed or not?
Here are the following steps which I want to achieve: I am stuck on Step 5
now.
Step 1 - Registering STAF
Step 2 ? Submitting the request on Machine1
Step 3 - Submitting the request on Machine2
Step 4 - Submitting the request on Machine4
Step 5 ? I want to check Step 3, 4 and 5 tasks has completed or not
----------------------------------->? How should I do that?
Step 6 ? If completed all the tasks copy the result file from machine 1,
2, 3 to driver machine
Can anybody please suggest me how to work it out?
Thanks, Avi
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