Scheduler troubleshooting

Hi,
I'm having troubles when I try to schedule a simple test pipeline. Here's my 'invoker' xpl:

<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline" xmlns:oxf="http://www.orbeon.com/oxf/processors">
<p:processor name="oxf:scheduler" xmlns:p="http://www.orbeon.com/oxf/pipeline">
<p:input name="config">
<config>
<start-task>
<name>test</name>
<start-time>now</start-time>
<interval>5000</interval>
<processor-name>oxf:pipeline</processor-name>
<input name="config" url="oxf:/test.xpl"/>
</start-task>
</config>
</p:input>
</p:processor>
</p:config>

As you can see, I'm just following the example given in http://www.orbeon.com/ops/doc/processors-scheduler

However, test.xpl is not being scheduled. Is there something special I should take care of? Will the instance be available for the scheduled pipeline?
One last thing: supposing I succeed scheduling my task(s), how can I retrieve the running tasks list?
Best Regards,
Pablo.




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Pablo,
        You will need to add the following to your properties.xml in config

    <property type="string"
name="oxf.context-initialized-processor.input.config"
value="oxf:/scheduled/schedule-tasks.xpl"/>

As for the list of scheduled tasks. I think that might be a custom processor
although I'm not sure

Ryan

Ryan Puddephatt
Web Developer
TFX Group
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[hidden email] wrote:
 > Hi,
 > I'm having troubles when I try to schedule a simple test
 > pipeline. Here's my 'invoker' xpl:
 >
 > <p:config xmlns:p="http://www.orbeon.com/oxf/pipeline"
xmlns:oxf="http://www.orbeon.com/oxf/processors">
 > <p:processor name="oxf:scheduler"
xmlns:p="http://www.orbeon.com/oxf/pipeline">
 > <p:input name="config">
 > <config>
 > <start-task>
 > <name>test</name>
 > <start-time>now</start-time>
 > <interval>5000</interval>
 > <processor-name>oxf:pipeline</processor-name>
 > <input name="config" url="oxf:/test.xpl"/>
 > </start-task>
 > </config>
 > </p:input>
 > </p:processor>
 > </p:config>
 >
 > As you can see, I'm just following the example given in
 > http://www.orbeon.com/ops/doc/processors-scheduler
 >
 > However, test.xpl is not being scheduled. Is there something special
 > I should take care of?

The above looks ok. Do you see anything in the logs?

 > Will the instance be available for the scheduled pipeline?

No, scheduled tasks run in the background, and they do not have access
to a context that would be passed to them automatically upon task
creation. I reckon that this would be nice. If you need to pass
information to a task you will need to store it somewhere, for example
in the Application scope, using the Scope serializer and generator.

 > One last thing: supposing I succeed scheduling my task(s), how can I
 > retrieve the running tasks list?

There is no mechanism right now to retrieve the list of scheduled
tasks. This could be done with the Java processor, or by enhancing the
Scheduler processor.

-Erik




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Ryan Puddephatt wrote:

 > You will need to add the following to your properties.xml in config
 >
 >     <property type="string"
 > name="oxf.context-initialized-processor.input.config"
 > value="oxf:/scheduled/schedule-tasks.xpl"/>

This is correct if you want to register a scheduled task upon
application initialization, however you may want to start a task
later, for example upon the user accessing a page, etc.

-Erik



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