The problem is probably caused by the remote machine not being able to
send its STAF/Process/End message to the STAX machine's hostname (possibly
due to a DNS configuration problem). See the STAF FAQ, question "4.1.2
Why is STAX still showing a process as running, even though it has
completed?", at http://staf.sourceforge.net/current/STAFFAQ.htm more
information on how to resolve this issue.
And follow any of the following threads posted on the STAF forums.
- http://sourceforge.net/forum/message.php?msg_id=4774490
- http://sourceforge.net/forum/message.php?msg_id=4708041
When using a <process> element, STAX starts the process asynchronously
(using the NOTIFY ONEND option), so when the process completes on the
remote machine, the remote machine submits a QUEUE request to the QUEUE
service on the STAX machine to send it the STAF/Process/End process
completion message. Note that the remote machine submits this request to
the hostname of the STAX service that was provided via the initial process
start request. If this QUEUE request fails, then the STAX service doesn't
know that the process has completed. So, it would appear that the remote
process machine cannot submit STAF requests to the STAX service machine
via it's hostname (and note on Windows, if it can't find it's TCP/IP
hostname via DNS, it defaults to it's NetBIOS name). This usually
indicates a TCP/IP DNS configuration problem. Running the "STAF
<STAXmachineHostname> MISC WHOAMI" from the remote process machine can
help you debug this to see the hostname that STAF uses to send the process
completion message to the STAX service machine.
Note: To get more information, you can turn on STAF tracing for the QUEUE
service and for tracepoints ServiceRequest, ServiceComplete, and
RemoteRequests on the remote process machine and redirect the STAF trace
output to a file of your choice as follows:
STAF <remoteProcessMachine> TRACE ENABLE SERVICE QUEUE
STAF <remoteProcessMachine> TRACE ENABLE TRACEPOINTS "ServiceRequest
ServiceComplete RemoteRequests"
STAF <remoteProcessMachine> TRACE SET DESTINATION TO FILE
/tmp/staftrace.out
and then rerun the STAX job that includes a <process> element for this
remote process machine. The STAF trace output in file /tmp/staftrace.out
will show what the remote process machine was given for the STAX service
machine and why the QUEUE request to send the process completion message
is failing.
--------------------------------------------------------------
Sharon Lucas
IBM Austin, [EMAIL PROTECTED]
(512) 838-8347 or Tieline 678-8347
"Devvan Stokes" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
09/10/2008 05:07 PM
To
<staf-users@lists.sourceforge.net>
cc
Subject
[staf-users] termingating a running STAX job
I'm starting up a simple STAX job and monitoring it from STAXMon. I've
defined a process that runs on a remote machine, and have chosen process
over stafcmd because I want to wait for the remote process to end. I can
visually confirm that the remote process runs, and ends (it drops off of
the Windows Task List), and yet the timer for the job, in STAXMon, keeps
running. This remote process is ending naturally - I'm not using a
stopusing element.
I would like for this process to terminate when the remote process ends,
so that I can check its return value, log a message based on that, and
also copy a remote file to the local filesystem (ending the job).
I have the process element inside of the sequence element because I intend
to have multiple processes called within the function. [code is below]
Is there anything obvious that I'm doing wrong?
Thank you.
<stax>
<defaultcall function="Main"/>
<function name="Main">
<sequence>
<script>
set some variables here
</script>
<process name=some name here>
<location> remote machine address </location>
<command mode="'default'">
start the remote process
</command>
<parms>
pass in some parameters
</parms>
<stdout>file name here</stdout>
<returnfile>name of remote file to return</returnfile>
</process>
<if expr="RC != 0">
<log level="'error'">
'Process failed with RC=%s, Result=%s' % (RC, STAFResult)
</log>
</if>
<else>
<log level="'info'">
Do some logging here
</log>
</else>
</sequence>
</function>
</stax>
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